Computation of vortex lock-in in the laminar wake of a circular cylinder using unsteady monopole sources

Dartzi Pan, Yu Chi Chin, Chih Hao Chang

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The vortex lock-in in the laminar wake behind a circular cylinder induced by the unsteady monopole source is numerically simulated in this paper. The artificial compressibility method is employed to solve the incompressible Navier-Stokes equations. A high-order accurate upwind flux-difference finite-volume scheme is used to dis-cretize the flow field. The unsteady monopole source is simulated by a pulsating volume flux through the cylinder surface at a prescribed forcing frequency and amplitude. The forcing amplitude is set to a fixed value while the frequency is varied to search for the lock-in region. The flow field of the periodic lock-in state is examined in detail. Finally, the effects of a higher amplitude and a different source location are briefly investigated.

原文English
頁(從 - 到)227-233
頁數7
期刊Journal of Fluids Engineering, Transactions of the ASME
117
發行號2
DOIs
出版狀態Published - 1995 一月 1

All Science Journal Classification (ASJC) codes

  • 機械工業

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