Application of the LES method to the oscillating flow past a circular cylinder
- Univ. of Houston, TX (United States). Dept. of Mechanical Engineering
The oscillating flow of an incompressible fluid over a circular cylinder is investigated by solving the vorticity/stream-function version of the two-dimensional Navier-Stokes equations using a finite-different Large Eddy Simulation (LES) method. Two different subgrid scale (SGS) models are tested. They are the classical Smagorinsky model and Yoshizawa`s Two-Scale Direct-Interaction Approximation (TSDIA) model. In addition, a Direct Numerical Simulation (DNS) solution was determined, except that the grid size was too large for a true DNS, for comparison purposes. Both models are applied to the classical problem of an oscillating two-dimensional flow over a circular cylinder at various KC values at {beta} = 1,035. Calculated lift and in-line force coefficients compare favorably with available experimental data for KC {le} 2 with the best solutions developed form the Yoshizawa model.
- OSTI ID:
- 182707
- Report Number(s):
- CONF-950695--; ISBN 0-7918-1306-1
- Country of Publication:
- United States
- Language:
- English
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