Numerical simulation of flow induced vibration based on fully coupled fluid-structural interactions

Xiangying Chen, Ge Cheng Zha, Zongjun Hu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

A fully coupled numerical methodology is developed for calculating the flow-structure inter- action problems. The Roe scheme is extended to moving grid and used with the finite-volume method. The unsteady solutions march in time by using a dual-time stepping implicit unfac- tored line Gauss-Seidel iteration. The unsteady Navier-Stokes equations and the linear struc- tural equations are fully coupled implicitly via successive iteration with pseudo time stepping. The moving mesh and mesh deformation strategy is based on two mesh zones, a fine mesh zone surrounding the solid body without mesh deformation and a coarse mesh zone surrounding the fine mesh zone and deforms with the solid object. This mesh deformation strategy can maintain the orthogonality of the mesh near the wall and save CPU time for re-meshing. The study cases presented include a vortex-induced oscillating cylinder, a forced pitching airfoil, and an elastically mounted transonic airfoil. For the elastic transonic airfoil, the flutter boundary is calculated. Other phenomena captured include the limit cycle oscillation (LCO) and the steady state flow conditions, under which the aerodynamic forces and moments are balanced by the structure. The computational results agree well with the experiments and the computed results of other researchers. The methodology is demonstrated to be accurate, robust and effcient.

Original languageEnglish (US)
Title of host publication34th AIAA Fluid Dynamics Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624100314
DOIs
StatePublished - 2004
Externally publishedYes
Event34th AIAA Fluid Dynamics Conference and Exhibit 2004 - Portland, OR, United States
Duration: Jun 28 2004Jul 1 2004

Publication series

Name34th AIAA Fluid Dynamics Conference and Exhibit

Other

Other34th AIAA Fluid Dynamics Conference and Exhibit 2004
CountryUnited States
CityPortland, OR
Period6/28/047/1/04

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

Fingerprint Dive into the research topics of 'Numerical simulation of flow induced vibration based on fully coupled fluid-structural interactions'. Together they form a unique fingerprint.

Cite this