| タイトル | Thermal analysis of an arc heater electrode with a rotating arc foot |
| 著者（英） | Milos, Frank S.; Shepard, Charles E. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1993-07-01 |
| 言語 | eng |
| 内容記述 | A smoothly rotating arc foot and an arc foot that jumps between multiple sticking points were analyzed using analytic formulations and numerical solution procedures. For each case the temperature distribution for a copper electrode was obtained for the plausible range of operating conditions. It is shown that the smoothly rotating arc foot is an extremely safe mode of operation, whereas the jumping arc foot produces excessively high electrode surface temperatures which are not greatly alleviated by increasing the average rotational frequency of the arc foot. It is suggested to eliminate arc-foot rotation and rely on the distribution of fixed electrodes with stationary arc attachment to avoid electrode failure at high current. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 93A46590
AIAA PAPER 93-2855 |
| 権利 | Copyright |
