| タイトル | Development of turbulence models for shear flows by a double expansion technique |
| 本文（外部サイト） | http://hdl.handle.net/2060/19910021152 |
| 著者（英） | Yakhot, V.; Thangam, S.; Speziale, C. G.; Orszag, S. A.; Gatski, T. B. |
| 著者所属（英） | Institute for Computer Applications in Science and Engineering |
| 発行日 | 1991-07-01 |
| 言語 | eng |
| 内容記述 | Turbulence models are developed by supplementing the renormalization group (RNG) approach of Yakhot and Orszag with scale expansions for the Reynolds stress and production of dissipation terms. The additional expansion parameter (eta) is the ratio of the turbulent to mean strain time scale. While low-order expansions appear to provide an adequate description of the Reynolds stress, no finite truncation of the expansion for the production of dissipation term in powers of eta suffices - terms of all orders must be retained. Based on these ideas, a new two-equation model and Reynolds stress transport model are developed for turbulent shear flows. The models are tested for homogeneous shear flow and flow over a backward facing step. Comparisons between the model predictions and experimental data are excellent. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 91N30466
NASA-CR-187611
ICASE-91-65
NAS 1.26:187611
AD-A240395 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/131142 |
