Three-dimensional modeling of tsunami waves
Two- and three-dimensional, time-dependent, nonlinear, incompressible, viscous flow calculations of realistic models of tsunami wave formation and run up have been performed using the Los Alamos-developed SOLA-3D code. The results of the SOLA calculations are compared with shallow-water, long-wave calculations for the same problems using the SWAN code. Tsunami wave formation by a continental slope subsidence has been examined using the two numerical models. The SOLA waves were slower than the SWAN waves and the interaction with the shoreline was more complicated for the SOLA waves. In the SOLA calculation, the first wave was generated by the cavity being filled along the shoreline close to the source of motion. The second wave was generated by the cavity being filled from the deep water end. The two waves interacted along the shoreline resulting in the second wave being the largest wave with a velocity greater than the first wave. The second wave overtook the first wave at later times and greater distances from the source. In the SWAN calculation, the second wave was smaller than the first wave. 6 refs.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- LA-UR-85-2412; CONF-8508112-1
- DOE Contract Number:
- Resource Type:
- Resource Relation:
- Conference: Tsunami symposium, Victoria, Canada, 6 Aug 1985
- Research Org:
- Los Alamos National Lab., NM (USA)
- Country of Publication:
- United States
- 58 GEOSCIENCES; TSUNAMIS; MATHEMATICAL MODELS; COMPUTER CODES; NONLINEAR PROBLEMS; TIME DEPENDENCE; DISASTERS; GRAVITY WAVES; WATER WAVES; 580500* - Oceanography- (1980-1989)
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