Study on nozzle boundary-layer control system for mitigating influence factors of nozzle throat erosion

被引：1

作者：

The 41st Institute of the Fourth Institute of CASC, Xi'an, China ^{[1
]}

不详 ^{[2
]}

机构：

[1] The 41st Institute of the Fourth Institute of CASC, Xi'an

[2] Xi'an Aerospace Composites Material Institute, Xi'an

来源：

Guti Houjian Jishu | / 1卷 / 45-49期

关键词：

Boundary-layer control system; Decrease; Influence factors; Nozzle throat erosion;

D O I：

10.7673/j.issn.1006-2793.2015.01.008

中图分类号：

学科分类号：

摘要：

A nozzle boundary-layer control system was introduced. This design can reduce the temperature of nozzle throat surface and the mass fractions of the oxidizing species in the combustion products due to the formation of a low-temperature fuel-rich boundary-layer. A parametric study of the effect of injection angle, geometric orientation, temperature and mass on the nozzle boundary-layer system was carried out using an axisymmetric model. A comparison of the decrease of nozzle surface temperature and concentrations of oxidizing species near nozzle surface under different parametric conditions was conducted. The change regulation of nozzle surface temperature and concentrations of oxidizing species near nozzle surface under different parametric conditions was elaborated. Finally, the effectiveness of nozzle boundary-layer control system on mitigating the influence factors of throat erosion was demonstrated. ©, 2015, Journal of Solid Rocket Technology. All right reserved.

引用

页码：45 / 49

页数：4

共 8 条

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