عنوان

Coupled Boundary and Finite Element Methods for the Solution of the Dynamic Fluid-Structure Interaction Problem

(Number (ISBN

3642517277

(Number (ISBN

9783642517273

Number

b569660

Title Proper

Coupled Boundary and Finite Element Methods for the Solution of the Dynamic Fluid-Structure Interaction Problem

General Material Designation

[Book]

First Statement of Responsibility

by Siamak Amini, Paul John Harris, David T. Wilton.

Place of Publication, Distribution, etc.

Berlin

Name of Publisher, Distributor, etc.

Heidelberg Springer Berlin Heidelberg

Date of Publication, Distribution, etc.

1992

Specific Material Designation and Extent of Item

(VI, 108 p. 2 illus).

Series Title

Lecture Notes in Engineering, 77

Text of Note

This text considers the problem of the dynamic fluid-structure interaction between a finite elastic structure and the acoustic field in an unbounded fluid-filled exterior domain. The exterior acoustic field is modelled through a boundary integral equation over the structure surface. However, the classical boundary integral equation formulations of this problem either have no solutions or do not have unique solutions at certain characteristic frequencies (which depend on the surface geometry) and it is necessary to employ modified boundary integral equation formulations which are valid for all frequencies. The particular approach adopted here involves an arbitrary coupling parameter and the effect that this parameter has on the stability and accuracy of the numerical method used to solve the integral equation is examined. The boundary integral analysis of the exterior acoustic problem is coupled with a finite element analysis of the elastic structure in order to investigate the interaction between the dynamic behaviour of the structure and the associated acoustic field. Recently there has been some controversy over whether or not the coupled problem also suffers from the non-uniqueness problems associated with the classical integral equation formulations of the exterior acoustic problem. This question is resolved by demonstrating that .the solution to the coupled problem is not unique at the characteristic frequencies and that it is necessary to employ an integral equation formulation valid for all frequencies.

Computational Intelligence.

Engineering.

Fluid- and Aerodynamics.

Class number

Book number

by Siamak Amini, Paul John Harris, David T. Wilton.

David T Wilton

Paul John Harris

Siamak Amini

Electronic name

[Book]

Y