Comparison of the Navier–Stokes computations with the experiment for LASTA – 95 wing at high angles of attack
Mirko Kozić
A comparison of the numerical and experimental results for LASTA – 95 wing at high angles of attack has been done. A three-dimensional Navier – Stokes code is used for computing flow field around the wing. Both unstructured and structured meshes are generated. The influence on the results of the mesh type and its resolution near the wing surface is analyzed. Comparisons pointed to the fact that reliable results can not be obtained by inadequate mesh resolution. The intention to use numerical simulation as virtual wind-tunnel does not apply in every simulation, regardless of the exact boundary, initial conditions and the solution convergence.
Key words: fluid dynamics, Navier–Stokes equations, numerical methods, stalling incidence, aerodynamic coefficients.