| タイトル | Homogeneous buoyancy-generated turbulence |
| 著者（英） | Canuto, V. M.; Batchelor, G. K.; Chasnov, J. R. |
| 著者所属（英） | NASA Goddard Inst. for Space Studies|NASA Ames Research Center |
| 発行日 | 1992-02-01 |
| 言語 | eng |
| 内容記述 | Using a theoretical analysis of fundamental equations and a numerical simulation of the flow field, the statistically homogeneous motion that is generated by buoyancy forces after the creation of homogeneous random fluctuations in the density of infinite fluid at an initial instant is examined. It is shown that analytical results together with numerical results provide a comprehensive description of the 'birth, life, and death' of buoyancy-generated turbulence. Results of numerical simulations yielded the mean-square density mean-square velocity fluctuations and the associated spectra as functions of time for various initial conditions, and the time required for the mean-square density fluctuation to fall to a specified small value was estimated. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 92A26645 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/329058 |
