WIT Press


Analysis Of Complex Fluid-structure Interaction Problems Using A Triangular Boundary Element For The Fluid Dynamics

Price

Free (open access)

Paper DOI

10.2495/BT950211

Volume

11

Pages

8

Published

1995

Size

812 kb

Author(s)

A. Hopf, G. Hailfmger & R. Krieg

Abstract

For fluid-structure interaction problems with complex geometries boundary element methods are quite suitable to describe the transient fluid dynamics. In this paper a triangular boundary element will be introduced to solve such problems. Both the pressure and its normal derivative are distributed linearly over the element. It was possible to carry out the integrations with regular and singular integrands ana- lytically. To demonstrate the method, it has been applied to the blowdown accident of a nuclear reactor. By postulating a sudden break of a pressure vessel nozzle, the incipient coolant flow around the control rods inside the vessel has been investigated. 1 Introduction In safety investigations for chemical and nuc

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