Past Projects (pre-2009)

PI

Co-PI(s)
Patrick Lynett, Texas A&M

Philip Liu, Cornell
Title TSUNAMOS: A Validated, Multi-Scale Tsunami Model for Hybrid Numerical-Experimental Simulation (Phase II)
What The objectives of the proposed research program are to 1) improve understanding of nearshore, three-dimensional tsunami evolution through an extensive set of physical experiments using NEES facilities; 2) create an extensible framework to provide a systemat ic structure for validating computational models with experimental and field data; 3) refine modeling capabilities and couple the various components together to create a multi-scale simulation tool; and 4) develop a sustainable education and outreach program that educate s the general public about tsunamis and appropriate responses to them. Nearshore evolution of tsunami waves, such as 3D breaking through focusing and bathymetry, and overland flow across irregular and rough topographies, will be investigated. Concurrent to the experime ntal effort, a comprehensive tsunami simulator, TSUNAMOS (Tsunami Open Source Community Model) , will be developed.

Phase I took place in the spring of 2007. The purpose of this set of experiments was to obtain a detailed and dense set of free surface and velocity measurements for 3D tsunami (long wave) breaking. Breaking will be induced through wave focusing. There was no bathymetry in the Tsunami Wave Basin during this phase; it was a flat bottom. Phase II will begin in July 2008 utilizing a 1:15 to 1:30 beach constructed in the Tsunami Wave Basin. The roughness type will include both fixed and movable sand and gravel, stripes and wires (simulating bushes and trees), and small blocks (simulating small structures in the path of tsunami inundation). 2HD runup time series will be digitized from overhead cameras, and the inundation limit will be manually traced after each experimental trial. These experimental settings will simulate situations closer to what tsunamis encounter on natural beaches. With this data, accurate bottom dissipation models will be developed for transient tsunami flow, improving significantly upon the traditional approach. NSF award abstract

When Jul 1, 2008 - Sept 30, 2008
Equipment Tsunami Wave Basin
PI

Co-PI(s)
John van de Lindt, Colorado State

Rakesh Gupta, Oregon State
Title SGER NEESR Payload Project to NEESR SG Award CMS-0530759: Leveraging Tsunami Researc h - Wave Loading on Residential Structures with Earthquake and Hurricane Applications
What The objective of this payload proposal is to install typical residential structural models on the other side of the wave basin during testing in order to investigate impact d ue to wave loading and run-up, and wind/pressure driven surge. Two single family dwelling models typical of coastal construction in the U.S. will be installed on a flat surface ab ove the waterline representing coastal property. Areas impacted by the results include: (1 ) information on fluid impact loads as a function of different wave heights and ground slo pes on residential structures, (2) an understanding of the load transfer mechanism and up lift forces on residential structures during wave and surge loading, (3) the relationship of scale model pressure to full-scale prototype damage, and (4) information for designers, innovators, and public policy and decision-maker. NSF award abstract
When Fall 2007
Equipment Tsunami Wave Basin
PI

Ron Riggs, University of Hawaii

Co-PI(s)
Ian Robertson and Kwok Fai Cheung, U Hawaii
Yin Lu Young, Princeton
Solomon Yim, Oregon State
Title Development of Performance-Based Tsunami Engineering, PBTE
What The proposed research will develop the methodology and validated simulation tools fo r implementation of site specific Performance Based Tsunami Engineering (PBTE) for use in the analysis, evaluation, design and retrofit of coastal structures and facilities, and co de-compatible provisions for tsunami resistant structural design. Coastal inundation model ing will be developed to redraft the inundation mapping for the Hawaiian Islands. The anal ytical simulation tools will be validated through extensive experimentation at the Tsunami Research facility at OSU. The Tsunami Wave Basin will be used to develop and validate co astal inundation codes including the influence of coastal plan and bathymetric variations, and 3-D RANS (Reynolds-Averaged Navier Stokes) simulations of fluid-structure interaction . The Longitudinal Wave Basin will be used to validate the scour modeling and to study the effect of floating debris on structural elements. NSF award abstract
When May 13, 2007 - Dec 20, 2007
Equipment Tsunami Wave Basin
PI

Co-PI(s)
Philip Liu, Cornell

Solomon Yim, Oregon State
Harry Yeh, Oregon State
Title Collaborative Research on Landslide Generated Tsunamis and Tsunami Structure Interactions using NEES Tsunami Wave Basin
What The proposed research program aims at achieving the following scientific objectives: 1. to understand the mechanism of landslide generated tsunamis and the associated runup and rundown, 2. to understand the dynamic interactions among tsunamis, rigid and flexible structures, and moving objects, 3. to improve the modeling capability of complex runup flows within the context of their interactions with flexible and moving objects, and 4. to develop benchmark problems with high quality experimental data for validating numerical simulation models. NSF award abstract
When Phase II - April 15, 2007 - May 11, 2007
Equipment Tsunami Wave Basin
PI

Co-PI(s)
Patrick Lynett, Texas A&M

Philip Liu, Cornell
Title TSUNAMOS: A Validated, Multi-Scale Tsunami Model for Hybrid Numerical-Experimental Simulation
What The objectives of the proposed research program are to 1) improve understanding of nearshore, three-dimensional tsunami evolution through an extensive set of physical experiments using NEES facilities; 2) create an extensible framework to provide a systematic structure for validating computational models with experimental and field data; 3) refine modeling capabilities and couple the various components together to create a multi-scale simulation tool; and 4) develop a sustainable education and outreach program that educates the general public about tsunamis and appropriate responses to them. Nearshore evolution of tsunami waves, such as 3D breaking through focusing and bathymetry, and overland flow across irregular and rough topographies, will be investigated. Concurrent to the experimental effort, a comprehensive tsunami simulator, TSUNAMOS (Tsunami Open Source Community Model), will be developed.

Phase I took place in the spring of 2007. The purpose of this set of experiments was to obtain a detailed and dense set of free surface and velocity measurements for 3D tsunami (long wave) breaking. Breaking will be induced through wave focusing. There was no bathymetry in the Tsunami Wave Basin during this phase; it was a flat bottom. NSF award abstract

When Mar 4, 2007 - Apr 14, 2007
Equipment Tsunami Wave Basin
PI

Co-PI(s)
Hermann Fritz, Georgia Tech

Leonid Germanovich, Georgia Tech
Alexander Puzrin, Swiss Federal Institute of Technology Zurich
Title NEESR-SG: Physical modeling of 3D Tsunami Evolution Using a Landslide Tsunami Generator
What The ultimate long-term goal is to develop a fundamental understanding of the mechanism of tsunamigenic landslides and subsequent tsunami generation, propagation, and run-up. This would allow for improved assessment and possible mitigation of the landslide and tsunami hazard. The goal of the proposed research is to compensate for lack of real world landslide and tsunami data, by the physical modeling of 3-dimensional tsunami evolution using a novel landslide tsunami generator, which will complement the existing NEES tsunami facility at OSU.. The design parameters for the proposed landslide tsunami generator will be determined using governing model similitude and dimensional analysis of the landslide and tsunami characteristics. The size of the NEES tsunami wave basin will provide the unique opportunity to study scale effects of tsunami generation and propagation based on a non-dimensional scale series. NSF award abstract
When Jun 26, 2006 - Aug 3, 2006; Oct 23, 006 - Dec 22, 2006
Equipment Tsunami Wave Basin
PI
Yin Lu Young, Princeton
Title Pilot Study in support of NEESR-SG: Development of Performance-Based Tsunami Engineering, PBTE
What This pilot study investigated harmonic wave runup on a beach with varying slopes. The wave breaking, bed scour, and sediment transport were also studied. Harmonic waves with a wide range of height and period were generated. The wave height, velocity, and sediment concentration at differential locations near the breaking and runup region were recorded and analyzed for comparison with model results. NSF award abstract
When Oct 30, 2006 - Nov 10, 2006
Equipment Large Wave Flume
PI

Co-PI(s)
Philip Liu, Cornell

Solomon Yim and Harry Yeh, Oregon State
Title Collaborative Research on Landslide Generated Tsunamis and Tsunami Structure Interactions Using NEES Tsunami Wave Basin
What The proposed research program aims at achieving the following scientific objectives: 1. to understand the mechanism of landslide generated tsunamis and the associated runup and rundown, 2. to understand the dynamic interactions among tsunamis, rigid and flexible structures, and moving objects, 3. to improve the modeling capability of complex runup flows within the context of their interactions with flexible and moving objects, and 4. to develop benchmark problems with high quality experimental data for validating numerical simulation models. NSF award abstract
When PHASE I - Mar 6, 2006 - Jun 16, 2006
Equipment Tsunami Wave Basin

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