Numerical simulation is performed for stagnating turbulent flows of impinging and countercurrent jets by the Reynolds stress model (RSM). Results are compared with those of the model and available data to assess the flow characteristics and turbulence models. Three variants of the RSM tested are those of Gibson and Launder (GL), Craft and Launder (GL-CL) and Speziale, Sarkar and Gatski (SSG). As is well known, the model significantly overestimates turbulent kinetic energy near the wall. Although the RSM is superior to the model, it shows considerable difference according to how the redistributive pressure-strain term is modeled. Results of the RSM for countercurrent jets are improved with the modified coefficients for the dissipation rate, and suggested by Champion and Libby. Anisotropic states of the stress near the stagnation region are assessed in terms of an anisotropy invariant map (AIM).
Analysis of Impinging and Countercurrent Stagnating Flows by Reynolds Stress Model
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluid Engineering Division, February 21, 2001; revised manuscript received March 18, 2002. Associate Editor: T. Gatski.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Im, Y. H., Huh, K. Y., and Kim, K. (August 19, 2002). "Analysis of Impinging and Countercurrent Stagnating Flows by Reynolds Stress Model ." ASME. J. Fluids Eng. September 2002; 124(3): 706–718. https://doi.org/10.1115/1.1493815
Download citation file:
- Ris (Zotero)
- Reference Manager