相似理论在层板式喷注器试验研究中的应用

推进技术 ›› 1995, Vol. 16 ›› Issue (1): 58-62.

相似理论在层板式喷注器试验研究中的应用

沈赤兵,陆政林

国防科学技术大学航天技术系;国防科学技术大学航天技术系

发布日期:2021-08-15

AN APPLICATION OF SIMILARITY THEORY TO THE EXPERIMENTAL INVESTIGATION OF PLATELET INJECTORS

Dept. of Aerospace Technology, National Unly. of Defence Technology, Changsha. 410073;Dept. of Aerospace Technology, National Unly. of Defence Technology, Changsha. 410073

Published:2021-08-15

摘要/Abstract

摘要： 将相似理论应用于层板式喷注器的试验研究，利用自行设计的溅板式喷嘴进行了冷流试验，通过试验证明该喷嘴的原型件与模型件在满足几何相似且进入第二自模区的条件下，流动特性相似。最后阐述了此结论的重要意义。

关键词: 液体推进剂火箭发动机;燃料喷射;撞击式喷嘴;模拟式模拟;水流模拟

Abstract: he similarity theory was used to the platelet injector’s experimentalinvestigation, in which splash-plate platelet injectors designed by author were emplored to do cold-flow test. It was proved by tests that the flow characteristics ofprototype and model are similar when they satisfy the geometric similarity and enterthe second self-modeling region. At last,the important significance of the conclusionwas shown.

Key words: Liquid propellant rocket engine;Fuel injection;Spray injector;Analog simulation;Water flow simulation

沈赤兵,陆政林. 相似理论在层板式喷注器试验研究中的应用[J]. 推进技术, 1995, 16(1): 58-62.