Towards a Successful Implementation of DES Strategies in Industrial RANS Solvers
Increasingly, design studies rely on numerical tools for more and more complex situations. Unfortunately, for some, if not many, of these complex cases, steady RANS has been unable to meet the challenge and cannot capture some of the most important features. At the same time, the continuing increase in computing power has made the use of unsteady simulations feasible, although not on a day-to-day basis, for a growing number of applications. The present paper reports on the experience of implementing one such unsteady technique known as Detached Eddy Simulation (DES) in a RANS-based industrial solver.
KeywordsIsotropic Turbulence Scalar Dissipation Central Scheme Detach Eddy Simulation Shear Stress Profile
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- Ahmed, S.R., Ramm, G., Faltin, G.: Some salient features of the time averaged ground vehicle wake. SAE paper no. 8403000 (1984)Google Scholar
- Jameson, A., Schmidt, W., Turkel, E.: Numerical solutions of the Euler equations by finite volume methods with Runge-Kutta time stepping schemes. AIAA Paper, 81–1259 (1981)Google Scholar
- Lienhart, H., Becker, S.: Flow and turbulent structure in the wake of a simplified car model. SAE paper no. 2003-01-0656 (2003)Google Scholar
- Menter, F.: Zonal two-equation k-w turbulence models for aerodynamic flows. AIAA-Paper, 1993–2906 (1993)Google Scholar
- Shur, M., et al.: Detached-eddy simulation of an airfoil at high angle of attack. In: Rodi, W., Laurence, D. (eds.) 4th Int. Symp. On Engineering Turbulence Modelling and Measurements, Corsica, May 24-26, pp. 669–678 (1999)Google Scholar
- Spalart, P.R., Allmaras, S.R.: A one-equation turbulence model for aerodynamic flows. La recherche aérospatiale 1, 5–21 (1994)Google Scholar
- Spalart, P., et al.: Comments on the feasibility of LES for wings and on the hybrid RANS/LES approach. In: Liu, C., Liu, Z., Sakell, L. (eds.) Advances in DNS/LES, pp. 137–148. Greden Press (1997)Google Scholar
- Swalwell, R.C., Sheridan, J., Melbourne, W.H.: Frequency analysis of surface pressure on airfoil after stall. 21st AIAA Applied Aerodynamics Conference (2004)Google Scholar
- Travin, A., et al.: Physical and numerical upgrades in the Detached-Eddy Simulation of complex turbulent flows. In: Friedrich, R., Rodi, W. (eds.) Fluid Mechanics and its applications. Proc. Of EUROMECH Colloquium 412. Advances in LES of Complex Flows, vol. 65, pp. 239–254. Kluwer Academic Publishers, Dordrecht, Boston, London (2002)Google Scholar
- Yang, Z., Shih, T.H.: A k-e model for turbulence and transitional boundary layer. In: So., R.M.C., Speziale, C.G., Launder, B.E. (eds.) Near-Wall Turbulence Flows, pp. 165–175. Elsevier-Science Publishers B.V., Amsterdam (1993)Google Scholar