한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)
- 제8권4호
- /
- Pages.23-32
- /
- 1991
- /
- 1225-9071(pISSN)
- /
- 2287-8769(eISSN)
난류 Offset 분류에 관한 수치해석
Calculation of Turbulent Offset Jet
- 발행 : 1991.12.01
초록
The paper discusses the problem of the flow over the backward facing step and the offset jet, which are calculated numerically. Standard k- .epsilon. model and its LPS modification are used as turbulence models. Hybrid central/upwind scheme and skew- upwind scheme are used as numerical schemes. The numerical scheme has a strong influence on the offset jet rather than the flow over backward facing step. The skew-upwind scheme gives good results in both cases. However, the k- .epsilon. model with LPS modification yields no remarkable improvements in the predictions of both flows. The skew-upwind scheme improves the prediction of reattachment length in the offset jet.
키워드