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Rans predictions of turbulent flow past a circular cylinder over the critical regime.
| Content Provider | CiteSeerX |
|---|---|
| Author | Benim, A. C. Cagan, M. Nahavandi, A. Pasqualotto, E. |
| Abstract | Abstract:- Incompressible, turbulent flow past a circular cylinder is computationally investigated by means of Reynolds Averaged Numerical Simulations. Problems in using the wall-functions approach for modeling the near-wall turbulence are demonstrated. As the main turbulence model, the Shear Stress Transport model is employed, by resolving the nearwall layer. A wide range of Reynolds numbers is investigated (Re=1. 10 4 to 5. 10 6), encompassing the critical regime. Predicted drag coefficients are compared with measurements from the literature. The procedure is shown to be able to predict the boundary layer transition and the associated drag coefficient reduction, qualitatively. Quantitatively, predicted drag coefficients are observed to underestimate measurements for all Reynolds numbers. Present analysis will be extended to more sophisticated transient models, which will be discussed in the oral presentation. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Circular Cylinder Critical Regime Rans Prediction Turbulent Flow Past Reynolds Number Drag Coefficient Drag Coefficient Reduction Turbulent Flow Sophisticated Transient Model Oral Presentation Wall-functions Approach Reynolds Averaged Numerical Simulation Nearwall Layer Main Turbulence Model Wide Range Present Analysis Near-wall Turbulence Boundary Layer Transition Shear Stress Transport Model |
| Content Type | Text |
