N<sub>2</sub>O贮箱自增压模拟

宋长青; 徐万武; 陈健

doi:10.13224/j.cnki.jasp.2016.04.031

N₂O贮箱自增压模拟

doi: 10.13224/j.cnki.jasp.2016.04.031

国防科学技术大学航天科学与工程学院高超声速冲压发动机技术重点实验室, 长沙 410073

基金项目:

国家高技术研究发展计划

详细信息

作者简介:
宋长青(1989-),男,陕西咸阳人,博士生,研究领域为小推力推进技术.

中图分类号: V231.3
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- 被引次数: 0
出版历程
- 收稿日期: 2014-07-17
- 刊出日期: 2016-04-28

Self-pressurization modeling of nitrous oxide tank

Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

摘要

摘要: 基于Zilliac的三区假设,建立了贮箱液相自增压供应模型,使用Peng-Robinson状态方程进行模型推导,并建立了自增压实验系统进行模型验证.研究结果表明:自增压过程中,贮箱饱和温度介于气相和液相温度之间,且更加接近于液相温度.模型能够较好地模拟贮箱压力和液相温度的变化,然而气相区域由于温度分层的存在使得集总参数模拟误差较大,故需要采用气相区域具有更多节点的集总参数模型进行模拟.
- 氧化亚氮 /
- 贮箱 /
- 自增压 /
- 集总参数 /
- 温度分层
Abstract: Based on the three regions assumption of Zilliac, a self-pressurization model was established with the use of Peng-Robinson state of equation. An experimental apparatus of self-pressurization was constructed to verify the model. The result indicated that the saturation temperature was between the vapor and liquid temperatures, and more adjacent to the liquid temperature during the self-pressurization progress. The model showed a good performance in predicting the pressure and liquid temperature, but the formed temperature stratification in vapor region made it inaccurate to apply the lumped parameter method to model, so a model with more nodes in the vapor region was expected in future.
- nitrous oxide /
- tank /
- self-pressurization /
- lumped parameter /
- temperature stratification

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参考文献(21)

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