Modeling of Complex Coupled Fluid-Structure Interaction Systems in Arbitrary Water Depth

Abstract

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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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2008
Accession Number
ADA514882

Entities

People

  • Solomon C. Yim

Organizations

  • Oregon State University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Engineering
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • Hydrodynamics
  • Kinetic Energy
  • Mathematical Models
  • Models
  • Particles
  • Simulations
  • Three Dimensional

Readers

  • Coastal Oceanography
  • Computational Modeling and Simulation
  • Structural Dynamics.