Modeling of Complex Coupled Fluid-Structure Interaction Systems in Arbitrary Water Depth
2008
Yim, Solomon C.
In our previous research, we developed predictive capabilities to analysis highly nonlinear coupled fluid-structure interaction systems for deep water applications using relatively simple fluid and structural models. We analyzed the global deterministic and stochastic behaviors of these systems via perturbation theory, modern geometric analysis, stochastic differential equation approach, and path integration solution techniques. This combination of analytical and numerical tools enabled us to gain a comprehensive understanding of the global behavior of the sensitive nonlinear coupled fluid structure interaction systems. The analysis procedures developed are applicable to idealized systems with a few degrees of freedom, and not suitable to study the nonlinear behavior at the local level, which is the source that triggers the high sensitivity of the global system. The objectives of this phase of our research focuses on the development of predictive capabilities to study the detailed physics of coupled fluid-structure interaction at the local level and to expand the region of applicability of the computational framework to shallow water and the surf zone.
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