Hydrogen/oxygen hot-firing tests of altitude compensating nozzles

WANG Yi-bai; QIN Li-zi; LIU Yu; LIAO Yun-fei; WANG Chang-hui

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Hydrogen/oxygen hot-firing tests of altitude compensating nozzles

更新时间：2026-07-07

- Hydrogen/oxygen hot-firing tests of altitude compensating nozzles
- Vol. 22, Issue 2, (2007)
- 作者机构：
  
  北京航空航天大学宇航学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
移动端阅览
WANG Yi-bai, QIN Li-zi, LIU Yu, et al. Hydrogen/oxygen hot-firing tests of altitude compensating nozzles[J]. 2007, 22(2).
DOI：

WANG Yi-bai, QIN Li-zi, LIU Yu, et al. Hydrogen/oxygen hot-firing tests of altitude compensating nozzles[J]. 2007, 22(2). DOI：

摘要

采用气氧作氧化剂、气氢作燃料

对具有高度补偿特性的塞式喷管和双钟型喷管进行了点火热试.介绍了气氢/气氧试验系统

以及试验喷管的结构形式、设计参数和装配照片

喷管试验件采用耐烧蚀的钨渗铜材料加工

成功进行了多次短时间点火热试.给出了试验测量参数曲线、点火热试照片和数据结果

获得了不同高度下塞式喷管和双钟型喷管的热试性能数据

和当量钟型喷管相比两者都具有较好的高度补偿特性.以推力系数效率为例

塞式喷管在低空压强比下达到92%-95%

双钟型喷管低空下为96%-98%

高空下则都在95%左右.

Abstract

By employing the gaseous oxygen as oxidizer and gaseous hydrogen as fuel

hot-firing tests were performed for aerospike nozzle and dual-bell nozzle test engines with altitude compensating features.The gaseous hydrogen/oxygen experimental system

the test nozzles' configuration

design parameters and assembly graphics were described.Made of the ablation-resistant tungsten-copper alloy

the test components of nozzles have successfully passed several short-period hot-firing tests.The measured parameter curves

test photographs and results are obtained

thus obtaining the performance data of aerospike nozzle and dual-bell nozzle under different altitudes

both of which have good altitude compensation characteristic as compared with the conventional bell nozzle.For example

the thrust coefficient efficiency of aerospike nozzle is 92%-95% and dual-bell nozzle is 96%-98% at low altitude

and about 95% at high altitude.

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Related Author

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LIAO Yun-fei

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LU Si-da

GAO Xi-guang

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State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics

Unit 94710, the Chinese People's Liberation Army

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