Comparative study of calculation procedures for viscous flows around airfoils in the transonic regime
Abstract
Comparative studies for the evaluation of flows around airfoils are presented. This problem is solved in two different ways. Flows are computed by: (1) a finite volume NavierStokes method; and (2) an iterative calculation procedure using a finite volume method to solve the full potential equation for the inviscid flow and an inverse integral boundary layer method for the viscous part. Using the NavierStokes method, two different algebraic turbulence models are investigated. First, the BaldwinLomax model is applied followed by the CebeciSmith model, in combination with a recently developed approach to evaluate the turbulent length scales in NavierStokes method. Concerning the problem of the computation of shock wave boundary layer interaction zones, a numerical study is performed using the finite volume NavierStokes method. The influence of mesh refinement, in the surface normal and tangential direction, with respect to the prediction quality is studied. Two different airfoils, the RAE 2822 and the DoAL3, are investigated and compared to experimental findings.
 Publication:

In AGARD
 Pub Date:
 December 1988
 Bibcode:
 1988vcfd....1Q....S
 Keywords:

 Airfoil Profiles;
 Computational Fluid Dynamics;
 Flow Distribution;
 Transonic Flow;
 Turbulence Models;
 Viscous Flow;
 Boundary Value Problems;
 Finite Volume Method;
 Integral Equations;
 NavierStokes Equation;
 Shock Waves;
 Fluid Mechanics and Heat Transfer