火箭推进2018，Vol.44Issue(3)：23-29,7.
微推力器柱阵列加热室流动和换热特性研究
Study on flow and heat transfer characteristics of heating chamber with column pin-fin array for micro-thruster
范匆 1王长辉 1曹熙炜2
作者信息
- 1. 北京航空航天大学 宇航学院,北京100191
- 2. 北京宇航系统工程研究所,北京100076
- 折叠
摘要
Abstract
A heating chamber with micro column pin-fin array structure was designed for the butane self-pressurized micro-thruster. Under the given heating power and the different inlet pressure of heating chamber, the effects of micro-column pin-fin arrangement structure on the flow and heat transfer charac-teristic of butane gas in the heating chamber were studied by numerical simulation as well as the propul-sion performance of the micro-thruster. The results show that the micro-column pin-fin array can signifi-cantly increase the heating efficiency of heating chamber and thruster performance, while its pressure loss at the heating chamber is quite small. Under the same arrangement density, the thruster with a staggered pin-fin arrangement has better overall performance. The more the arrangement density is, the better the heat transfer characteristics and propulsive performance of the micro-thruster become. However, when the staggered arrangement is adopted for the micro-column array, the thruster performance is not further im-proved once the arrangement density increases to a certain degree.关键词
微推力器/柱阵列加热室/气体流动/换热特性/数值模拟Key words
micro-thruster/heating chamber with column pin-fin array/gas flow/heat transfer cha-racteristic/numerical simulation分类
航空航天引用本文复制引用
范匆,王长辉,曹熙炜..微推力器柱阵列加热室流动和换热特性研究[J].火箭推进,2018,44(3):23-29,7.
