Interaction of Viscous Free-Surface Flow with Submerged Structure

by C. J. Tang, Natl Cheng-Kung Univ, Taiwan,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond


The fully-transformed unsteady incompressible Navier-Stokes equations are solved numerically in a time-dependent boundary-fitted coordinate system. In addition, the complete viscous free-surface boundary conditions are specified at the exact free surface in the present study. The finite-analytic (FA) discretization formulation and the SIMPLER decoupling algorithm are utilized to obtain the time-accurate solutions through the iterative procedures. The viscous interaction of an obstacle ahead of a submerged intake structure below a free surface is then studied by this method.

Subject Headings: Submerged flow | Free surfaces | Underwater structures | Viscous flow | Navier-Stokes equations | Fluid-structure interaction | Fluid flow | Domain boundary

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