| タイトル | Turbulent plane Couette flow using probability distribution functions |
| 著者（英） | Srinivasan, R.; Giddens, D. P.; Bangert, L. H.; Wu, J. C. |
| 著者所属（英） | Georgia Inst. of Tech. |
| 発行日 | 1977-04-01 |
| 言語 | eng |
| 内容記述 | A numerical scheme employing a combination of the discrete ordinate method and finite differences is developed for solving the one-dimensional form of Lundgren's (1967) model equation for turbulent plane Couette flow. The approach used requires no a priori assumption about the form of the turbulent distribution function, and the numerical solution is obtained directly from the governing differential equations. Two different types of boundary conditions (zero-gradient and Chapman-Enskog) for the distribution function are evaluated by comparing the numerical results with experimental data. It is found that: (1) the present approach gives convergent and stable results over a wide range of Reynolds numbers; (2) Lundgren's equation yields results that compare well with experimental data for mean velocity and skin friction in the case of simple Couette flow; (3) the zero-gradient boundary condition leads to a logarithmic flow profile; and (4) the Chapman-Enskog boundary condition provides very good agreement with experimental data when applied within the near-wall region. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 77A37861 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/437492 |
