| タイトル | Numerical and Experimental Studies of the Natural Convection Flow Within a Horizontal Cylinder Subjected to a Uniformly Cold Wall Boundary Condition |
| 本文（外部サイト） | http://hdl.handle.net/2060/19730012551 |
| 著者（英） | Stewart, R. B. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1972-10-01 |
| 言語 | eng |
| 内容記述 | Numberical solutions are obtained for the quasi-compressible Navier-Stokes equations governing the time dependent natural convection flow within a horizontal cylinder. The early time flow development and wall heat transfer is obtained after imposing a uniformly cold wall boundary condition on the cylinder. Solutions are also obtained for the case of a time varying cold wall boundary condition. Windware explicit differ-encing is used for the numerical solutions. The viscous truncation error associated with this scheme is controlled so that first order accuracy is maintained in time and space. The results encompass a range of Grashof numbers from 8.34 times 10,000 to 7 times 10 to the 7th power which is within the laminar flow regime for gravitationally driven fluid flows. Experiments within a small scale instrumented horizontal cylinder revealed the time development of the temperature distribution across the boundary layer and also the decay of wall heat transfer with time. |
| NASA分類 | FLUID MECHANICS |
| レポートNO | 73N21278
NASA-TM-X-69220 |
| 権利 | No Copyright |
