| タイトル | A critical comparison of several low Reynolds number k-epsilon turbulence models for flow over a backward facing step |
| 本文（外部サイト） | http://hdl.handle.net/2060/19930023011 |
| 著者（英） | Steffen, C. J., Jr. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1993-06-01 |
| 言語 | eng |
| 内容記述 | Turbulent backward-facing step flow was examined using four low turbulent Reynolds number k-epsilon models and one standard high Reynolds number technique. A tunnel configuration of 1:9 (step height: exit tunnel height) was used. The models tested include: the original Jones and Launder; Chien; Launder and Sharma; and the recent Shih and Lumley formulation. The experimental reference of Driver and Seegmiller was used to make detailed comparisons between reattachment length, velocity, pressure, turbulent kinetic energy, Reynolds shear stress, and skin friction predictions. The results indicated that the use of a wall function for the standard k-epsilon technique did not reduce the calculation accuracy for this separated flow when compared to the low turbulent Reynolds number techniques. |
| NASA分類 | NUMERICAL ANALYSIS |
| レポートNO | 93N32200
NASA-TM-106173
AIAA PAPER 93-1927
CMOTT-93-9
E-7873
NAS 1.15:106173 |
| 権利 | No Copyright |
|
