タイトル | Volume-energy parameters for heat transfer to supercritical fluids |
著者(英) | Kumakawa, A.; Hendricks, R. C.; Arp, V. D.; Niino, M.; Giarratano, P. J. |
著者所属(英) | NASA Lewis Research Center|National Bureau of Standards|National Aerospace Lab. |
発行日 | 1986-01-01 |
言語 | eng |
内容記述 | Reduced Nusselt numbers of supercritical fluids from different sources were grouped by several volume-energy parameters. A modified bulk expansion parameter was introduced based on a comparative analysis of data scatter. Heat transfer experiments on liquefied methane were conducted under near-critical conditions in order to confirm the usefulness of the parameters. It was experimentally revealed that heat transfer characteristics of near-critical methane are similar to those of hydrogen. It was shown that the modified bulk expansion parameter and the Gibbs-energy parameter grouped the heat transfer data of hydrogen, oxygen and methane including the present data on near-critical methane. It was also indicated that the effects of surface roughness on heat transfer were very important in grouping the data of high Reynolds numbers. |
NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
レポートNO | 87A32326 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/378806 |