| タイトル | Vortical dissipation in two-dimensional shear flows |
| 本文（外部サイト） | http://hdl.handle.net/2060/19870006012 |
| 著者（英） | Karamcheti, Krishnamurty; Horne, W. Clifton |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1986-12-01 |
| 言語 | eng |
| 内容記述 | An exact expression is derived for the viscous dissipation function of a real homogeneous and isotropic fluid, which has terms associated with the square of vorticity, wave radiation, and dilatation. The implications of the principle of maximal dissipation rate, are explored by means of this equation for a parallel channel flow and a cylindrical vortex flow. The consequences of a condition of maximum dissipation rate on the growth of disturbances in an unsteady, laminar shear layer are apparently consistent with predictions and observations of maximum growth rate of vortical disturbances. Finally, estimates of the magnitudes of several dissipative components of an unsteady vortex flow are obtained from measurements of a periodic wall jet. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 87N15445
A-87018
NAS 1.15:89408
NASA-TM-89408 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/152497 |
