Prediction of the Flow Around an Airfoil Using a Reynolds Stress Transport Model

[+] Author and Article Information
Lars Davidson

Thermo and Fluid Dynamics, Chalmers University of Technology, S-412 96 Gothenburg, Sweden

J. Fluids Eng 117(1), 50-57 (Mar 01, 1995) (8 pages) doi:10.1115/1.2816818 History: Received March 23, 1993; Revised April 25, 1994; Online December 04, 2007


A second-moment R eynolds S tress T ransport M odel (RSTM) is used in the present work for computing the flow around a two-dimensional airfoil. An incompressible SIMPLEC code is used, employing a non-staggered grid arrangement. A third-order QUICK scheme is used for the momentum equations, and a second-order, bounded MUSCL scheme is used for the turbulent quantities. As the RSTM is valid only for fully turbulent flow, an eddy viscosity, one-equation model is used near the wall. The two models are matched along a preselected grid line in the fully turbulent region. Detailed comparisons between calculations and experiments are presented for an angle of attack of α = 13.3 deg. The RSTM predictions agree well with the experiments, and approaching stall is predicted for α = 17 deg, which agrees well with experimental data. The results obtained with a two-layer κ – ∊ model show poor agreement with experimental data; the velocity profiles on the suction side of the airfoil show no tendency of separation, and no tendency of stall is predicted.

Copyright © 1995 by The American Society of Mechanical Engineers
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