Coastal Engineering Research Group 
Ocean Engineering

Education : M.S. 1980 (civil engng.), M.S. 1983 (oceanography), Ph.D 1985 (hydraulic and ocean engng.), University of Liège (Belgium).

Résumé   Course syllabi   Current/Past research projects

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Main areas of research, work, and teaching

Coastal engineering (wave modeling and experiments, wave-structure-bottom interactions, wave breaking, freak waves, wave-induced sediment transport, tsunami impact, geohazards); numerical modeling of ship waves; numerical modeling (Boundary Element Method); porous and random media flows, multi-phase flows; underwater acoustic propagation/instrumentation (see résumé for detail : [work])


Stéphan T. Grilli, Distinguished Professor of Ocean Engineering, was educated at the University of Liège (Belgium), where he received an M.S. in civil engineering in 1980, an M.S. in physical oceanography in 1983 and a Ph.D. in Applied Sciences ( Hydraulic and Ocean Engineering ) in 1985. After two years as a research associate at the University of Liège, in 1987, he joined the Civil Engineering department (Ocean Engineering Group ) of the University of Delaware as a research assistant professor. He joined the faculty at URI in 1991 as an assistant professor and was promoted to associate professor in 1993 and to professor in 1998. Dr. Grilli served as Chair of the Department of Ocean engineering, from 2002 to 2008. (Details of : [positions] ).

Since 1983, Dr. Grilli traveled extensively. He was a visiting professor in Rabat (Morocco), in Santander (Spain), in Nantes (ECN) Toulon (LSEET, ISITV) and Nice (INLN) (France), Braunschweig (Germany), and an invited lecturer in China, Denmark, and England (Details of : [visiting positions]). He attended and made presentations at over 80 international meetings, most of them in foreign countries. Doing so, he delivered many invited lectures, and often served as a session chair ( Details of : [presentations]). In 1986, he received the University of Liège Alumni award and the Gustav Magnel award (Brussels), both for his Ph.D. dissertation, and the Fernand de Waele award in Brussels in 1990, for his post-doctoral research. He also received the Duesberg-Baily Foundation award in Verviers, in 1987, and the ATMA award in Paris, in 1984. In 1992, he was awarded the Estelle and Vincent Murphy Award for excellence in engineering by the URI College of Engineering (Details of : [awards]).

Over the past twenty years, Dr. Grilli, has gradually developed a specialization of his research and teaching interests in the general area of coastal engineering. Within this area, however, he has broad academic and research interests ranging from computational wave and fluid dynamics, coastal and surf-zone modeling and wave-structure interaction, to porous and poro-elastic media flows. He has thus designed and taught courses in hydromechanics, marine hydrodynamics, wave and advanced wave mechanics, littoral processes, coastal modeling, and wave structure-interaction (List of : [courses]; Details of : [courses]). Dr. Grilli is very involved with both the US and international coastal an ocean engineering research community. From 1996 to 2004, he served on the editorial board of the ASCE Journal of Waterways, Port, Coastal, and Ocean Engineering and since 2003, he has served as associate editor of the International Journal of Offshore and Polar Engineering (IJOPE). Since 2001, he has been on the scientific committee of the ISOPE conference series, within which he served as the chairman of the Numerical Wave Tank group (2000-02) and since 2003 as the chairman of the Hydrodynamic Committee. Dr. Grilli has worked on long wave runup since the early 1990's and, since 1998, on tsunamis generated by underwater landslides. More recently, following the 12/26/04 Indian Ocean Tsunami, Dr. Grilli helped organize and participated in an expedition to the area of the epicenter of the 12/26/04 tsunami (SEATOS: summary, webpage). The expedition was featured in a 2h Discovery Channel special in December 2005. Follwoing this, Dr. Grilli's work was featured in various other TV or radio shows, as well as in many newspaper article and web posting. He has since been quite involved with the modeling of that event and the forecasting of tsunami hazard in the region, as well as in Northern USA. A short animation of modeling results for the 12/26/04 tsunami can be found in (1.5Gb) (See details at [tsunami]).

Over the past twenty-five years, Dr. Grilli has also maintained a strong research interest in the Boundary Element Method (BEM), both at the fundamental and application levels. In many of his research projects, he used the BEM to solve wave modeling and other flow problems, more recently in combination (or coupling) with other numerical methods such as VOF. Dr. Grilli has been involved as well with the international BEM research community. He serves on the editorial board of the journals : Engineering Analysis with Boundary Elements (EABE, since 1989). He was co-Chairman and editor of the proceedings of BETECH90 (the 5th International Conference on Boundary Element Technology), and has been a regular member of scientific committees of international conference series devoted to boundary elements and computational modeling such as BEM (since 1990), and BETECH (since 1991). In 1990, he served as guest editor for a special issue of EABE on nonlinear wave analysis (Details of : [professional societies] [editorial board] [scientific committees]).

Research Sponsorship

Complete list of : [grants]     Current list of : [research projects]

Dr. Grilli's recent research activity has been supported by the Office of Naval Research (ONR), the National Science Foundation (NSF), various state agencies, private foundations, and corporations. Dr. Grilli's recent research is primarily directed at wave analysis in coastal areas and wave interaction with submerged and emerged coastal structures, including wave-induced sediment transport around partly buried mines, freak wave generation and impact on structures, topographic wave breaking and properties of breaking waves, waves generated by FastShips (surface effect ships). A great deal of Dr. Grilli's recent of research is also related to tsunami generation (long waves) and tsunami propagation, and geohazard in coastal areas (more details in : [wave] [tsunami] ).

Over the years, Dr. Grilli developed several computer models using the BEM, initially for linear wave propagation, floating body dynamics in waves, and porous media flows. After joining the University of Delaware, in collaboration with Dr. Svendsen, he developed a two-dimensional (2D) computer model for nonlinear wave propagation over arbitrary bottom geometry, up to overturning and breaking in nearshore area. This model has since been undertaken many additional stages of both development and refinement and is now recognized as one of the state-of-the-art models (i.e., "Numerical Wave Tank") for calculating wave propagation, shoaling, breaking and runup. NSF supported the model documentation and maintenance. Since 1999, Dr. Grilli developed a three-dimensional (3D) fully nonlinear model using a higher-order BEM, which truly constitutes a Numerical Wave Tank (NWT). This 3D-NWT has been applied to a variety of wave generation and propagation problems (topographic wave shoaling and breaking, landslide tsunami generaiton, freak wave generation). Both the 2D- and 3D-NWTs have been coupled to other models solving Navier-Stokes (NS) equations (based on VOF or VOF-LES methods), to study post-breaking waves and wave induced sediment transport.

SeaGrant initially supported analyses, using the 2D model, of characteristics of shoaling and breaking (mostly solitary) waves over a beach in connection with surfzone dynamics, and NRL supported the application of the 2D model to periodic wave shoaling and breaking over arbitrary bottom topography. As part of an ONR project, the model was used to calculate periodic wave shoaling and breaking over beaches (with and without a bar) and develop Depth-Inversion-Algorithms for predicting the bottom topography in shallow water, based on characteristics of surface waves measured by remote sensing. NSF supported the application of the 3D model to landslide tsunami and freak wave generation. ONR suported the study of wave-induced sediment tranport. Various other problems (e.g., coupling, freak waves) were also tackled as part of international collaborations (LSEET, ENS-CACHANS,...). Dr. Grilli has maintained research collaborations with the University of Delaware ocean group, where laboratory experiments were performed at various stages of the 2D model validation. In 1998-99, while on sabbatical in France (University of Toulon and Institut Nonlineaire of Nice), Dr. Grilli developed the initial 3D version of his fully nonlinear breaking wave model, as well as worked on coupling the two-dimensional model to a VOF model for breaking and post-breaking waves. Various subsequent developments of both the 2D- and 3D-NWTS and applications of these to new problems, were then carried out in collaboration with French colleagues (see more details in : [wave]).

Dr. Grilli has investigated other directions for extending the above calculations to the analysis of ship wave resistance, kinematics of random waves, wave interaction with porous seabed and structures [porous], and tsunami generated by underwater landslides and slumps [tsunami]. In addition, since 1993, Dr. Grilli has broaden his interest to the study of other types of waves and interfacial motions. Under US Coast Guard and then MMS funding, he developed a model of oil containment by booms, including the study of Kelvin-Helmholtz instabilities at the interface between oil and water [boom]. Under ONR funding, in collaboration with Dr. Stepanishen, he developed a BEM model for the underwater acoustic propagation in coastal regions [acoustics]. In collaboration with Dr. Spaulding, he participated in the implementation of a state-of-the-art linear wave model in a real time coastal forecasting system [COASTMAP].

Selected Publications (2013-2022)

Since 1980, Dr. Grilli has published over 14 chapters in books and edited books. He has published over 112 refereed journal articles, 151 refereed proceeding articles, 81 non-refereed proceedings articles and abstracts, and 61 research reports. Below are selected publications in the past 10 years (see complete list in résumé by connecting below) :

Full lists of :   [chapters] [journal articles] [refereed proceedings] [non-refereed proceedings] [research reports]

2013 :

Grilli, S.T., J.C. Harris, T. Tajalibakhsh, T.L. Masterlark, C. Kyriakopoulos, J.T. Kirby and F. Shi 2013. Numerical simulation of the 2011 Tohoku tsunami based on a new transient FEM co-seismic source: Comparison to far- and near-field observations Pure and Applied Geophysics, 170, 1333-1359, doi:10.1007/s00024-012-0528-y   (published online 7/24/12).    [pdf]  (2.2Mb).

Janssen, C.F., S.T. Grilli and M. Krafczyk 2013. On enhanced non-linear free surface flow simulations with a hybrid LBM-VOF approach. Computers and Mathematics with Applications, 65(2), 211-229, doi:10.1016/j.camwa.2012.05.012  (published online 7/12/12).    [pdf]  (3.3Mb).

Kirby, J.T., Shi, F., Tehranirad, B., Harris, J.C. and Grilli, S.T. 2013. Dispersive tsunami waves in the ocean: Model equations and sensitivity to dispersion and Coriolis effects. Ocean Modeling, 62, 39-55, doi:10.1016/j.ocemod.2012.11.009 .    [pdf]  (3.3Mb).

Morra G., R. Geller, S.T. Grilli, S.-I. Karato, S. King, S.-M. Lee, P. Tackley, and D. Yuen 2013. Growing Understanding of Subduction Dynamics Indicates Need to Rethink Seismic Hazards. EOS Transaction American Geophys. Union 94(13), 125-126, doi:10.1002/2013EO130008    [pdf]  (1.6Mb).

Nimmala, S.B., S.C. Yim and S.T. Grilli 2013. An Efficient Parallelized 3-D FNPF Numerical Wave Tank for Large-Scale Wave Basin Experiment Simulation. J. Offshore Mech. and Arctic Engng., 135(2), 021104, 10 pps., doi:10.1115/1.4007597     [pdf]  (7.4Mb).

2014 :

Nouguier F., Grilli S.T. and C.-A. Guérin 2014. Nonlinear ocean wave reconstruction algorithms based on spatiotemporal data acquired by a flash LIDAR camera. IEEE Transactions on Geoscience and Remote Sensing, 52(3), 1761-1771, doi:10.1109/TGRS.2013.2254494  [pdf]

Banari A., Janssen C., Grilli S.T. and M. Krafczyk 2014. Efficient GPGPU implementation of a Lattice Boltzmann Model for multiphase flows with high density ratios. Computers and Fluids, 93, 1-17 doi: 10.1016/j.compfluid.2014.01.004  [pdf]

Tappin D.R., Grilli S.T., Harris J.C., Geller R.J., Masterlark T., Kirby J.T., F. Shi, G. Ma, K.K.S. Thingbaijamg, and P.M. Maig 2014. Did a submarine landslide contribute to the 2011 Tohoku tsunami ?, Marine Geology, 357, 344-361 doi: 10.1016/j.margeo.2014.09.043  (open access).

Harris J.C. and Grilli, S.T. 2014. Large eddy simulation of sediment transport over rippled beds. Nonlin. Processes Geophys., 21, 1,169-1,184, doi:10.5194/npg-21-1169-2014  (open access).

Horrillo J., Grilli S.T., Nicolsky D., Roeber V., and J. Zhang 2014. Performance Benchmarking Tsunami Operational Models for NTHMP's' Inundation Mapping Activities. Pure and Applied Geophysics, 172, 869-884, doi: 10.1007/s00024-014-0891-y  [pdf]

Banari A., Janssen C.F., and Grilli S.T. 2014. An efficient lattice Boltzmann multiphase model for 3D flows with large density ratios at high Reynolds numbers. Computers and Mathematics with Applications, 68, 1819-1843, doi:10.1016/j.camwa.2014.10.009  [pdf]

2015 :

Grilli S.T., O'Reilly C., Harris J.C., Tajalli-Bakhsh T., Tehranirad B., Banihashemi S., Kirby J.T., Baxter C.D.P., Eggeling T., Ma G. and F. Shi 2015. Modeling of SMF tsunami hazard along the upper US East Coast: Detailed impact around Ocean City, MD. Natural Hazards, 76(2), 705-746, doi: 10.1007/s11069-014-1522-8  (published online 11/15/14).   [pdf]

Dombre E., Benoit M., Violeau D., Peyrard C. and Grilli S.T. 2015. Simulation of floating structure dynamics in waves by implicit coupling of a fully nonlinear potential flow model and a rigid body motion approach. Journal of Ocean Engineering and Marine Energy, 1, 55-76, doi: 10.1007/s40722-014-0006-y  (published online 11/13/14).   [pdf]

Banari A., Mauzole Y., Hara T., Grilli S.T. and C.F. Janssen 2015. The simulation of turbulent particle-laden channel flow by the Lattice Boltzmann method. International Journal for Numerical Methods in Fluids, 79(10), 491-513, doi: 10.1002/fld.4058  (published online 06/16/15).   [pdf]

Tehranirad B., Harris J.C., Grilli A.R., Grilli S.T., Abadie S., Kirby J.T. and F. Shi 2015. Far-field tsunami impact in the north Atlantic basin from large scale flank collapses of the Cumbre Vieja volcano, La Palma. Pure and Applied Geophysics, 172(12), 3,589-3,616 doi:10.1007/s00024-015-1135-5  (published online 07/21/15).   [pdf]

2016 :

Grilli, S.T., Grilli A.R., David, E. and C. Coulet 2016. Tsunami Hazard Assessment along the North Shore of Hispaniola from far- and near-field Atlantic sources. Natural Hazards, 82(2), 777-810, doi: 10.1007/s11069-016-2218-z (published online 2/19/2016).

Hashemi, M.R., Grilli, S.T. and S.P. Neill 2016. A simplified method to estimate tidal current effects on the ocean wave power resource. Renewable Energy, 96, 257-269 doi:10.1016/j.renene.2016.04.073 (published online 5/6/2016; open access).

Grilli, S.T., Grosdidier S. and C.-A. Guérin 2016. Tsunami detection by High Frequency Radar beyond the continental shelf. I. Algorithms and validation on idealized case studies. Pure and Applied Geophysics, 173(12), 3,895-3,934, doi: 10.1007/s00024-015-1193-8 (published online 10/28/15).

Shelby, M., Grilli, S. T. and Grilli, A. R., 2016. Tsunami hazard assessment in the Hudson River Estuary based on dynamic tsunami tide simulations. Pure and Applied Geophysics, 173(12), 3,999-4,037, doi:10.1007/s00024-016-1315-y (published online 5/24/16).

2017 :

Grilli, S.T., Shelby, M., Kimmoun, O., Dupont, G., Nicolsky, D., Ma, G., Kirby, J. and F. Shi 2017. Modeling coastal tsunami hazard from submarine mass failures: effect of slide rheology, experimental validation, and case studies off the US East coast. Natural Hazards, 86(1), 353-391, doi:10.1007/s11069-016-2692-3 (published online 12/01/16).

Lynett, P., and 37 alii 2017. Inter-Model Analysis of Tsunami-Induced Coastal Currents. Ocean Modeling, 114, 14-32, doi:10.1016/j.ocemod.2017.04.003.

Grilli, S.T., Guérin, C.-A., Shelby, M., Grilli, A., P. Moran, Grosdidier, S. and T.L. Insua 2017. Tsunami detection by High Frequency Radar beyond the continental shelf: II. Extension of algorithms and validation on realistic case studies. Pure and Appl. Geophys., 174(1), 3,003-3,028, doi:10.1007/s00024-017-1619-6 (published online 7/21/17).

Grilli, S.T., Grilli, A.R., Tehranirad, B. and J.T. Kirby 2017. Modeling tsunami sources and their propagation in the Atlantic Ocean for coastal tsunami hazard assessment and inundation mapping along the US East Coast. In Proc. Coastal Structures and Solutions to Coastal Disasters 2015 : Tsunamis (Boston, USA. September 9-11, 2015), American Soc. Civil Eng., pps. 1-12 [pdf]  (2.9Mb).

Tehranirad, B., Kirby J. T., S. T. Grilli and F. Shi 2017. Does morphological adjustment during tsunami inundation increase levels of hazard ?. In Proc. Coastal Structures and Solutions to Coastal Disasters 2015 : Tsunamis (Boston, USA. September 9-11, 2015), American Soc. Civil Eng., pps. 145-153 [pdf]  (0.4Mb).

Mivehchi A., J.C. Harris, S.T. Grilli, J.M. Dahl, C.M. O'Reilly, K. Kuznetsov and C.F. Janssen 2017. A hybrid solver based on efficient BEM-potential and LBM-NS models: recent BEM developments and applications to naval hydrodynamics. In Proc. 27th Offshore and Polar Engng. Conf. (ISOPE17, San Francsico, USA. June 2017), Intl. Society of Offshore and Polar Engng., pps. 721-728 [pdf].

O'Reilly C.M., S.T. Grilli, J.C. Harris, A. Mivehchi, C.F. Janssen and J.M. Dahl 2017. A Hybrid Solver Based on Efficient BEM-potential and LBM-NS Models: Recent LBM Developments and Applications to Naval Hydrodynamics. In Proc. 27th Offshore and Polar Engng. Conf. (ISOPE17, San Francsico, USA. June 2017), Intl. Society of Offshore and Polar Engng., pps. 713-720 [pdf].

Kirby, J.T., F., Shi, F., S.T. Grilli, Nemati, F., and B. Tehranirad 2017. NTHMP Current Benchmark Workshop: FUNWAVE-TVD results. Research Report no. CACR-16-01. NTHMP Award, #NA14NWS4670041, National Weather Service Program Office, 82 pps. [pdf]  

Zhang, C., Tehranirad. B., Kirby, J.T., Derakhti, M., Nemati, F. Grilli, S.T., Gangfeng, M. and F. Shi 2017. Tsunami Benchmark Results for the Non-Hydrostatic Wave Model NHWAVE, Version 2.0. Research Report no. CACR-17-03. NTHMP Award, #NA14NWS4670041, National Weather Service Program Office, 48 pps. [pdf]  

2018 :

Guérin C.-A. and S.T. Grilli 2018. A probabilistic method for the estimation of ocean surface currents from short time series of HF radar data. Ocean Modeling, 121(1), 105-116, doi:10.1016/j.ocemod.2017.11.010 (published online 12/05/17).

Schambach, L., Grilli, A.R., Grilli, S.T., Hashemi, M.R., and J. King 2018. Assessing the impact of extreme storms on barrier beaches along the Atlantic coastline : Application to the southern Rhode Island coast. Coastal Engineering, 133, 26-42, (published online 12/21/17).

Guérin C.-A., S.T. Grilli, P. Moran, A.R. Grilli, T.L. Insua 2018. Tsunami detection by High Frequency Radar in British Columbia: performance assessment of the Time-Correlation Algorithm for synthetic and real events. Ocean Dynamics, 68(4-5), 423-438, (published online 2/20/18).

Hayward S., Hashemi M.R., Torres M., Grilli A.R., Grilli S.T., King J., Baxter C. and M.L. Spaulding 2018. Numerical simulation of coastal erosion and its mitigation by living shoreline methods: case study in southern Rhode Island. J. American Shore and Beach Preservation Assoc., 86(4), 13-25.[pdf]  

Harris J.C., O'Reilly C.M., Mivehchi A., Kuznetsov K., Janssen C.F., Grilli S.T. and J.M. Dahl 2018. Hybrid modeling of wave structure interaction with overlapping viscous-inviscid domains. In Proc. 33rd Intl. Workshop Water Waves and Floating Bodies (IWWWFB18, Guidel-Plages, France, April 4-7, 2018), 4 pps. [pdf]  

Grilli, S.T., Dahl, J.M., Grilli, A.R. and S.C. Steele 2018. Real-time sea-state estimation from inertial measurements of a ship's motions. In Proc. 16th Journée de l'hydrodynamique (JH2018) (November 27-29, Marseille, France), 12 pps. [pdf].

Al Naser N., Grilli A.R., Grilli S.T., Baxter C., Bradshaw A. and B. Maggi 2018. Land use and mitigation effects on barrier beach erosion in storms case study in RI. In Proc. 36th Intl. Conf. on Coastal Engng. (ICCE18; Baltimore, Jul 30 - Aug 3), ASCE, 1(36), 40, doi:10.9753/icce.v36.papers.108 .

Woodruff, I., Kirby, J.T., Shi, F. and Grilli, S.T., 2018. Estimating meteotsunami occurrences for the US East Coast. In Proc. 36th Intl. Conf. on Coastal Engng. (ICCE18; Baltimore, Jul 30 - Aug 3), ASCE, 1(36), 66.

2019 :

Grilli S.T., D.R. Tappin, S. Carey, S.F.L. Watt, S.N. Ward, A.R. Grilli, S.L. Engwell, C. Zhang, J.T. Kirby, L. Schambach and M. Muin 2019. Modelling of the tsunami from the December 22, 2018 lateral collapse of Anak Krakatau volcano in the Sunda Straits, Indonesia, Scientific Reports, 9, 11946 (open access) doi:10.1038/s41598-019-48327-6

Guérin C.-A., Desmars, N., Grilli, S.T., Ducrozet, G., Pérignon, Y. and P. Ferrant 2019. An improved Lagrangian model for the time evolution of nonlinear surface waves. J. Fluid Mech., 876, 527-552, doi:10.1017/jfm.2019.519.

Schambach L., Grilli S.T., Kirby J.T. and F. Shi 2019. Landslide tsunami hazard along the upper US East Coast: effects of slide rheology, bottom friction, and frequency dispersion. Pure and Applied Geophys., 176(7), 3,059-3,098, (published online 09/03/18).

Nemati F., Grilli S.T., Ioualalen M., Boschetti L., Larroque L. and J. Trevisan 2019. High-resolution coastal hazard assessment along the French Riviera from co-seismic tsunamis generated in the Ligurian fault system. Natural Hazards, 96(2), 553-586, (published online 12/15/18).

Torres M.J., Hashemi, M.R., Hayward S., Spaulding M.L., Ginis I. and S.T. Grilli 2019. Role of hurricane wind models in accurate simulation of storm surge and waves. J. Waterways, Port, Coastal Engng., 145(1), 04018039, doi:10.1061/(ASCE)WW.1943-5460.0000496 (published online 11/15/18).

Roarty H., T. Cook, L. Hazard, J. Harlan, D. George, S. Cosoli, L. Wyatt, E. Alvarez Fanjul, E. Terrill, M. Otero, J. Largier, S. Glenn, N. Ebuchi, B. Whitehouse, K. Bartlett, J. Mader, A. Rubio, L.P. Corgnati, C. Mantovani, A. Griffa, E. Reyes, P. Lorente, X. Flores-Vidal, K.J. Saavedra-Matta, P. Rogowski, S. Prukpitikul, S.-H. Lee, J.-W. Lai, C.-A. Guérin, J. Sanchez, B. Hansen and S. Grilli 2019. The Global High Frequency Radar Network. Frontiers in Marine Science, 6, 164, 1-26 (open access) doi:10.3389/fmars.2019.00164.

2020 :

Grilli S.T., Horrillo J. and S. Guignard 2020.  Fully nonlinear potential flow simulations of wave shoaling over slopes: spilling breaker model and integral wave properties. Water Waves, 2(2), 263-297, doi:10.1007/s42286-019-00017-6 (published online 10/08/19).

Schambach L., Grilli S.T., Tappin D.R., Gangemi M.D., and G. Barbaro 2020. New simulations and understanding of the 1908 Messina tsunami for a dual seismic and deep submarine mass failure source, Marine Geology, 421, 106093, doi: 10.1016/j.margeo.2019.106093 (published online, 12/15/19).

Athanassoulis, G.A., Benoit, M., Clamond, D. and S.T. Grilli 2020. Foreword to the special issue on nonlinear waves over variable bathymetry. J. Ocean Eng. Mar. Energy, 5, 307-310, doi: 10.1007/s40722-019-00158-3 (published online 1/23/20).

Boschetti L., Ioualalen M., Nemati F., Grilli S.T., Dessa J.-X., and C. Larroque 2020. Tsunami intensity scale based on wave amplitude and current applied to the French Riviera: the case study of local seismicity. Natural Hazards, 102, 219-248, doi: 10.1007/s11069-020-03921-0 (published online 04/18/20).

Derakhti M. , J.T. Kirby, M.L. Banner, S.T. Grilli and J. Thomson 2020. A unified breaking onset criterion for surface gravity water waves in arbitrary depth. J. Geophys. Res., 125(7), e2019JC015886, 28 pps, doi:10.1029/2019JC015886 (published online, 5/22/20).

Grilli A.R., Westcott G., Grilli S., Spaulding M.L., Shi F. and J.T. Kirby 2020. Assessing coastal risk from extreme storms with a phase resolving wave model: Case Study of Narragansett, RI, USA. Coastal Engineering, 160, 103735, doi:10.1016/j.coastaleng.2020.103735 (published online, 6/02/20).

Desmars N., F. Bonnefoy, S.T. Grilli, G. Ducrozet, Y. Perignon, C.-A. Guérin and P. Ferrant 2020. Experimental and numerical assessment of deterministic nonlinear ocean waves prediction algorithms using non-uniformly sampled wave gauges. Ocean Engineering, 212, 1037659, doi:10.1016/j.oceaneng.2020.107659 (published online, 6/24/20).

O'Reilly C., Janssen C.F. and S.T. Grilli 2020. A Lattice-Boltzmann-based perturbation method. Computers and Fluids, 213, 104723, doi:10.1016/j.compfluid.2020.104723 (published online 9/18/20).

Schambach, L., Grilli, S.T. and A.R. Grilli 2020. Simulation of Global Tsunami Hazard along the U.S. East Coast. Research Report no. CACR-20-02. NTHMP Award, #NA18NWS4670073, National Weather Service Program Office, 93 pps. [pdf] 

Harris, J.C., A. Mivehchi and S.T, Grilli 2020. Modeling Breaking Wake of a Submerged Hydrofoil with Fully Nonlinear Potential Flow. In Proc. 17th Journée de l'hydrodynamique (JH2020) (November 24-26, Cherbourg-en-Cotentin, France), 2 pps. (article).

2021 :

Varing A., Filipot J.-F., Grilli S.T., Duarte R., Roeber V. and M. Yates 2021. A new kinematic breaking onset criterion for spilling and plunging breaking waves in shallow water. Coastal Engineering, 164, 103755, doi:10.1016/j.coastaleng.2020.103755 (published online 9/22/20).

Tappin D.R. and Grilli, S.T. 2021. The Continuing Underestimated Tsunami Hazard from Submarine Landslides. In: Sassa K., Mikos M., Sassa S., Bobrowsky P.T., Takara K., Dang K. (eds) Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction. Springer, Cham., pp. 343-350, doi: 10.1007/978-3-030-60196-6_24 .

Schambach L., Grilli S.T. and D.R. Tappin 2021. New high-resolution modeling of the 2018 Palu tsunami, based on supershear earthquake mechanisms and mapped coastal landslides, supports a dual source. Frontiers in Earth Sciences, 8, 627, doi:10.3389/feart.2020.598839 (accepted 11/18/20).

Zhang C., Kirby J., Shi F., Ma G. and S.T. Grilli 2021. A two-layer non-hydrostatic landslide model for tsunami generation on irregular bathymetry. 1. Theoretical basis. Ocean Modelling, 159, 101749, doi:10.1016/j.ocemod.2020.101749 (accepted 12/19/20).

Zhang C., Kirby J., Shi F., Ma G. and S.T. Grilli 2021. A two-layer non-hydrostatic landslide model for tsunami generation on irregular bathymetry. 2. Numerical discretization and model validation. Ocean Modelling, 160, 101769, doi:10.1016/j.ocemod.2021.101769 (Accepted 2/11/21).

Hunt, J.E., Tappin, D.R., Watt, S.F.L., Susilohadi, S., Novellino, A., Ebmeier, S.K., Cassidy, M., Engwell, S.L., Grilli, S.T., Hanif, M., Priyanto, W.S., Clare, M.A., Abdurrachman, M., and U., Udrekh 2021. Submarine observations show half of the island of Anak Krakatau failed on December 22nd 2018. Nature Communications, 12, 2827, doi:10.1038/S41467-021-22610-5 (accepted 1/18/21).

Grilli, S.T. and J.T. Kirby 2021. Landslide Tsunami Models Developed and Used by the NTHMP East Coast Group for Tsunami Inundation Mapping to Help Elucidate the Messina 1908, Anak 2018, and Palu 2018 Events. TsuInfo Alert, 23(3), 1-5 [pdf]

Grilli, S.T., Zhang, C., Kirby, J.T., Grilli, A.R., Tappin, D.R., Watt, S.F.L., Hunt, J.E., Novellino, A., Engwell, S.L., Nurshal, M.E., Abdurrachman, M., Cassidy, M., Madden-Nadeau A.L. amd S. Day 2021. Modeling of the Dec. 22nd 2018 Anak Krakatau volcano lateral collapse and tsunami based on recent field surveys: comparison with observed tsunami impact. Marine Geology, 440, 106566, doi:0.1016/j.margeo.2021.106566 (accepted on 07/12/21).

Schambach L., Grilli S.T., Tappin D.R., Gangemi M.D., and G. Barbaro 2021. Response to: Comment on "New simulations and understanding of the 1908 Messina tsunami for a dual seismic and deep submarine mass failure source", Marine Geology, 442, 106636, doi:10.1016/j.margeo.2021.106636 (accepted 9/9/21).

Iorio, V., G. Bellotti, C. Cecioni and S.T. Grilli 2021. A numerical model for the efficient simulation of multiple landslide-induced tsunamis scenarios. Ocean Modelling, 168, 101899, doi:10.1016/j.ocemod.2021.101899 (accepted 9/10/21).

Grilli, S.T., M. Mohammadpour, L. Schambach, and A.R. Grilli 2021. Tsunami coastal hazard along the US East Coast from coseismic sources in the Acores Convergence Zone and the Caribbean Arc areas. Natural Hazards, 1-48, doi:10.1007/s11069-021-05103-y (accepted 10/28/21).

2022 :

Harris J.C., Dombre E., Benoit M., Grilli S.T. and K.I. Kuznetsov 2022. Nonlinear time-domain wave-structure interaction: a parallel fast integral equation approach. Intl. J. Numer. Fluids, 94(2), 188-222, doi:10.1002/fld.5051 (accepted 9/24/21).

Cutler, K.S., S.F.L. Watt, M. Cassidy, A.L. Madden-Nadeau, S.L. Engwell, M. Abdurrachman, M.E.M. Nurshal, D.R. Tappin, S.N. Carey, A. Novellino, C. Hayer, J.E. Hunt, S.J. Day, S.T. Grilli, I.A. Kurniawan and N. Kartadinata 2022. Downward-propagating eruption following vent unloading implies no direct magmatic trigger for the 2018 lateral collapse of Anak Krakatau. Earth and Planetary Science Letters, 578, 117332, doi:10.1016/j.epsl.2021.117332 (accepted 12/08/21).

Kirby, J.T., S.T. Grilli, J. Horrillo, P.L.-F. Liu, D. Nicolsky, S. Abadie, B. Ataie-Ashtiani, M.J. Castro, L. Clous, C. Escalante, I. Fine, J.M. Gonzalez-Vida, F. Lovholt, P. Lynett, G. Ma, J. Macias, S. Ortega, F. Shi, S. Yavari-Ramshe, C. Zhang 2022. Validation and intercomparison of models for landslide tsunami generation. Ocean Modelling, 170, 101943, doi:10.1016/j.ocemod.2021.101943 (accepted 12/26/21).

Sassa, S., Grilli, S.T., Tappin, D.R., Sassa, K., Karnawati, D., Gusiakov, V. and F. Løvholt 2022. Understanding and reducing the disaster risk of landslide-induced tsunamis: a short summary of the panel discussion in the World Tsunami Awareness Day Special Event of the Fifth World Landslide Forum. Landslides, doi:10.1007/s10346-021-01819-x (published online 01/31/22).

Accepted/in press :

Submitted or in revision :

Choi, Y.K., F. Shi, M. Malej, J.M. Smith, J.T. Kirby and S.T. Grilli. Block-structured, equal workload, multigrid nesting interface for Boussinesq wave model FUNWAVE-TVD. Geoscientific Model Development (submitted).

O'Reilly, C.M., S.T. Grilli, C.F. Janssen, J.M. Dahl and J.C. Harris. Hybrid simulation of turbulent flow interactions with submerged structures by combining a potential flow solver and a Lattice-Boltzmann LES model. Intl. J. Numerical Meth. in Fluids (hal-03557460) (submitted).

Some Graduates

Complete list of : [graduates]

Lauren Schambach is working at MITRE Inc. She received her PhD in August 2020, with a dissertaiton entitled: Investigation of Landslide-Induced Tsunami Generation and Propagation through Numerical Modeling.

Fatima Nemati is a PhD student at the University of Victoria (Canada). She received her MS in May 2019 with a thesis on tsunami modeling.

Christopher O'Reilly is working at Martin Defense Group. He received his PhD in December 2018 with a dissertation entitled: A hybrid Lattice Boltzmann method-potential flow model for naval hydrodynamics.

Amin Mivehchi is working As a Postdoc at Lehigh University. He received his PhD in December 2018 with a dissertation (co-advised) entitled: Experimental and Numerical Simulations for Fluid Body Interaction Problems.

Patrick Moran is working at iXblue Defense Systems Inc. He received his MS in May 2018, with a thesis entitled: Contributions to Tsunami Detection by High Frequency Radar.

Michael Shelby is working at the Naval Underwater Warefare Center, Newport, RI. He defended his MS in July 2016, with a thesis entitled: Modeling tsunamis for improved hazard assessment and detection.

Tayebeh Tajali-bakhsh is working at RPS Inc. (RI). She received her PhD in 2014, with a dissertation entitled: Improvements and applications of state_of_the_art numerical models for simulating tsunami hazard.

Amir Banari works as a postdoc at the Technical University of Hamburg. He received her PhD in 2014, with a dissertation entitled: Lattice Boltzmann simulation of multiphase flows; application to wave breaking and sea spray generation.

Jeffrey Harris is working as a research associate at the Saint Venant Laboratory (Chatou, France) on modeling wave-structure interaciton problems. He received his MS in May 2006, with a thesis entitled: Understanding and Optimizing the Harley Surface Effect Ship and his PhD in May 2011, with a thesis about wave-structure-sediment interact modeling.

Christian Janssen is working at Altair Engineering and Technical University of Hamburg. He received his PhD in May 2010, at the University of Braunschweig (Germany), with a dissertation (co-advised) entitled: Kinetic approaches for the simulation of non-linear free surface flow problems in civil and environmental engineering

Kristy Moore is working at the Naval Underwater Warfare Center (NUWC), in RI. She defended her MS in July 2007, with a thesis entitled: Evaluation of an Autonomous Underwater Vehicle for Acoustic Surveys, Investigation of 3D Propagation Effects at the New Jersey Shelf Break Front and Acoustic Backscatter in Controlled Water Wave Fields.

Stefan Maretzki is working at Bilfinger Berger in Germany. He defended his MS in December 2006, with a thesis entitled: Numerical Simulation of Tsunami Hazard Maps for the US East Coast.

Francois Enet is working at Alkyon, in Holland. He defended his PhD in August 2006, with a dissertation entitled: Laboratory Experiments and Numerical Modeling for Tsunamis Generated by Underwater Landslides.

Rick Gilbert is a Consulting Engineer at McLaren, P.C. in New York. He completed his MS in 2005, with a thesis entitled: Numerical modeling and validation of nonlinear wave driven sediment transport.

Matt Shultz is working at an Ocean Engineering Company in Woods Hall, MA. He completed his MS in 2005, with a thesis entitled: Simulation of a ship-to-shore causeway system in waves.

Benjamin Biausser is working at Technip Offshore Branch, Flexi France. He completed his PhD in 2003 (at the university of Toulon) with a dissertation (co-advised) entitled: Suivi d'interface tridimensionnel : application au déferlement.

Aaron Bengston, after working for one year in Finland, and working as an engineer for Vibtech Inc, is now working at the Naval Underwater Warefare Center, Newport, RI. He completed his MS in 2001, with a thesis entitled: Laboratory Experiments to Determine the Dynamic Response of a Ship-to-Shore Causeway System.

Todd Fake works as a scientific programmer at the University of Connecticut. He completed his MS in 2000, with a thesis entitled: SLICKMAP : An interactive computer model for the modeling of oil containment by booms.

Philippe Guyenne is a Professor at the University of Delaware. He completed his PhD degree in 2000 at the Institut Nonlinéaire de Nice (France), with a dissertation (co-advised) entitled: Modèles numeriques pour la turbulence faible et le déferlement des vagues.

Juan Horrillo taught at the ITESM University in Mexico. He completed his MS in 1997 at URI, with a thesis entitled: Fully Nonlinear Properties of Periodic Waves Shoaling over Slopes. He received his PhD from the University of Alaska in 2006 and is now an Associate Professor at Texas A&M University at Galveston, TX.


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