On the Diffuser Adopting Film Cooling with Water Introduced by Ejector Action of Motor Exhaust Gas
| Autor: | AKIBA, Ryojiro, KAYUTA, Seiyu, HIGASHI, Teruhisa, NAKABE, Hiroo |
|---|---|
| Jazyk: | japonština |
| Rok vydání: | 1971 |
| Zdroj: | 東京大学宇宙航空研究所報告. 7(3):668-681 |
| ISSN: | 0563-8100 |
| Popis: | この報告は,ロケットモータの真空燃焼試験装置のディフューザの冷却に関するもので,水をディフューザ入口付近の負圧を利用して,ディフューザ壁内面に噴入させ,フィルム冷却により有効に壁面を保護する型の新しい構想に基づく単純で耐久性のあるディフューザの諸特性を理論的,実験的に検討しその実用性を示した. A new type of diffuser is tested and evaluated for the altitute simulation of rocket motors. The device adopted to the new type diffuser is that cooling water is introduced into the diffuser by the ejector action of the motor exhaust gas itself, and the wall is protected against high temperature exhaust gas by the layer of vaporized water on the surface of the wall. It has been shown that the diffuser wall is sufficiently cooled when the water is introduced more than 60% of the exhaust gas mass flow, and the water flow into the diffuser can be realized without any noticeable degradation of the diffuser chara- cteristics if the configuration in the vicinity of the injection port is properly desi- gned as B type shown in Fig. 9. 資料番号: SA0125449000 |
| Databáze: | OpenAIRE |
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