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RESEARCH PAPERS

Application of Large Eddy Simulation to an Oscillating Flow Past a Circular Cylinder

[+] Author and Article Information
Xiyun Lu, Charles Dalton, Jianfeng Zhang

Department of Mechanical Engineering, University of Houston, Houston, TX 77204

J. Fluids Eng 119(3), 519-525 (Sep 01, 1997) (7 pages) doi:10.1115/1.2819275 History: Received June 05, 1996; Revised March 11, 1997; Online December 04, 2007

Abstract

Three-dimensional sinusoidally oscillating flows around a circular cylinder are investigated by using a viscous flow method (VFM) and a large eddy simulation (LES). A second-order accurate in time fractional step method and a combined finite-difference/spectral approximation are employed to solve the filtered incompressible Navier-Stokes equations. To demonstrate the viability and accuracy of the method, we calculate two cases of steady approach, flows at Reynolds numbers Re = 100 using VFM and Re = 104 using LES. For sinusoidally oscillating flows at β = 1035, the flow is 2D for KC< 0.5, 3D for 0.5 < KC < 2, and turbulent for KC > 2. For KC = 0.5, 0.8 and 1, the flow is calculated using VFM. For KC = 2, 3, 4, 5, 8 and 10, we have simulated the flow using LES with the Smagorinsky subgrid scale model. The drag and inertia coefficients are calculated from the in-line force acting on the cylinder and are in very good agreement with experimental data.

Copyright © 1997 by The American Society of Mechanical Engineers
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