Determination of the added stiffness of a fluid-coupled structure using the Navier-Stokes equations

F. Belanger, E. de Langre

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The added stiffness of a fluid-coupled structure is determined from the Navier-Stokes equations. Fluid forces act on the structure which is in contact with a laminar flow of fluid. When the structural walls are displaced from their mean, or nominal position, the resulting perturbed flow and fluid forces are used to determine the system's added stiffness. The perturbed flow may be computed on the undeformed, fixed mesh which is originally delimited by the structure before it is displaced from its nominal position. In doing so, the wall deformations are taken into account by linearizing the boundary conditions imposed in solving the Navier-Stokes equations. The approach is applied for validation to a channel flow problem, one wall of which has a sinusoidal shape of deformation.

Original languageEnglish
Title of host publicationUnsteady Flows
EditorsF.J. Moody, D.C. Wiggert
PublisherPubl by ASME
Pages1-3
Number of pages3
ISBN (Print)0791810143
Publication statusPublished - 1 Dec 1993
Externally publishedYes
EventProceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA
Duration: 28 Nov 19933 Dec 1993

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume267
ISSN (Print)0277-027X

Conference

ConferenceProceedings of the 1993 ASME Winter Annual Meeting
CityNew Orleans, LA, USA
Period28/11/933/12/93

Fingerprint

Dive into the research topics of 'Determination of the added stiffness of a fluid-coupled structure using the Navier-Stokes equations'. Together they form a unique fingerprint.

Cite this