固体燃料冲压发动机两种补燃室构型数值分析

推进技术 ›› 2009, Vol. 30 ›› Issue (6): 647-650.

固体燃料冲压发动机两种补燃室构型数值分析

刘巍,杨涛,程兴华,李理

国防科学技术大学航天与材料工程学院;国防科学技术大学航天与材料工程学院;国防科学技术大学航天与材料工程学院;国防科学技术大学航天与材料工程学院

发布日期:2021-08-15
基金资助:
国家自然科学基金(50376072)

Numerical analysis on two types of afterburning chamber for solid fuel ramjet

Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China;Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China;Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China;Inst. of Aerospace and Material Engineering, National Univ. of Defence Technology, Changsha 410073, China

Published:2021-08-15

摘要/Abstract

摘要： 为了提高固体燃料冲压发动机性能,使用数值模拟的方法对圆孔隔板与加长燃料两种补燃室构型进行了对比研究。在燃料内径、燃烧室入口直径、空气流量及补燃室压强相同的条件下,得到了两种补燃室构型的放热量与总压损失。对二者进行综合比较后发现,圆孔隔板构型适用于补燃室较短以及发动机工作时间较长的情况;加长燃料构型适用于补燃室较长以及发动机工作时间较短的情况。

关键词: 固体燃料冲压发动机;补燃室;数值分析

Abstract: In order to improve the performance of solid fuel ramjet,two types of afterburning chamber were numerically studied,including dump afterburning chamber with mixed orifice plate and lengthening the solid fuel.The heat release and total pressure loss were studied with same fuel passage diameter,combustion chamber inlet diameter,air mass flow rate and pressure.It was concluded that the dump afterburning chamber was better if the afterburning chamber length was shorter and the working time of the ramjet was longer,otherwise lengthening the solid fuel was better.

Key words: Solid fuel ramjet;Afterburning chamber;Numerical analysis

刘巍,杨涛,程兴华,李理. 固体燃料冲压发动机两种补燃室构型数值分析[J]. 推进技术, 2009, 30(6): 647-650.