Three-dimensional application of the Johnson-King turbulence model for a boundary-layer direct method
Computers and Fluids, vol.19, no.3-4, pp.363-376, 1991 (Scopus)
- Publication Type: Article / Article
- Volume: 19 Issue: 3-4
- Publication Date: 1991
- Doi Number: 10.1016/0045-7930(91)90061-l
- Journal Name: Computers and Fluids
- Journal Indexes: Scopus
- Page Numbers: pp.363-376
- Ankara Yıldırım Beyazıt University Affiliated: No
Abstract
The Johnson-King turbulence model[1; AIAA Paper 84-0175 (1984)] as extended to three-dimensional flows was evaluated using a finite-difference boundary-layer direct method. Calculations were compared against the experimental data of the well-known van den Berg-Elsenaar[2; Report NLR-TR-72092U (1972)] incompressible flow over an infinite swept-wing, as well as with some other boundary-layer methods. The Johnson-King turbulence model, which includes the non-equilibrium effects in a developing turbulent boundary layer, was found to significantly improve the predictive quality of a direct boundary-layer method. The improvement was especially visible in the computations with increased three-dimensionality of the mean flow, larger integral parameters and decreasing eddy-viscosity and shear-stress magnitudes in the streamwise direction; all in better agreement with the experiment than simple mixing-length-based methods. © 1991.