タイトル | Nonequilibrium Ablation of Phenolic Impregnated Carbon Ablator |
本文(外部サイト) | http://hdl.handle.net/2060/20120017464 |
著者(英) | Gokcen, Tahir; Milos, Frank S.; Chen, Yih K. |
著者所属(英) | NASA Ames Research Center |
発行日 | 2012-10-01 |
言語 | eng |
内容記述 | In previous work, an equilibrium ablation and thermal response model for Phenolic Impregnated Carbon Ablator was developed. In general, over a wide range of test conditions, model predictions compared well with arcjet data for surface recession, surface temperature, in-depth temperature at multiple thermocouples, and char depth. In this work, additional arcjet tests were conducted at stagnation conditions down to 40 W/sq cm and 1.6 kPa. The new data suggest that nonequilibrium effects become important for ablation predictions at heat flux or pressure below about 80 W/sq cm or 10 kPa, respectively. Modifications to the ablation model to account for nonequilibrium effects are investigated. Predictions of the equilibrium and nonequilibrium models are compared with the arcjet data. |
NASA分類 | Composite Materials |
レポートNO | TSM-6112 ARC-E-DAA-TN6112 |
権利 | Copyright, Distribution as joint owner in the copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/239860 |
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