Project Title:

Fluid-Structure Interaction Using Unstructured Meshes

Fluent Inc.
10 Cavendish Court, Centerra Resource Park
Lebanon, NH 03766

93-101.01   2600  C       AMOUNT REQUESTED $ 69,770

Fluid-Structure Interaction Using Unstructured Meshes

Abstract:

The objective of the proposed work is to develop a unified and
optimum numerical method for solving fluid-structure interaction
problems. We propose to use an unstructured solution-adaptive
topology for both fluid and structure, and to discretize the
governing equations for both using a common numerical basis. We
also propose to use MIMD parallel processing with domain
decomposition to allow the solution of these large three-
dimensional unsteady problems.

Phase I of the proposed work will concentrate on the fluid side,
and develop a numerical basis for computing fluid flow on a moving
and deforming mesh. Algorithms for the transmittal of a prescribed
boundary deformation to the interior unstructured mesh will be
developed. The methodology will be validated against the
literature. Phase II will concentrate on the discretization of the
structure equations, and the computation fluid-structure
interaction. Procedures for parallel processing of the code on MIMD
architectures will be also implemented. The resulting software will
address a wide variety of practical fluid-structure interaction
problems.

The software developed here will find application in a wide variety
of industrial problems. Examples include the computation of
aeroelasticity, the computation of blade flutter in turbomachinery,
valve flutter in internal flows, and the calculation of flow-
induced vibrations in heat-exchangers, and around high-rise
structures

Fluid, Structure, Unstructured-Mesh, Computational, Fluid,
Dynamics, Galerkin, Control-Volume