进气管结构及尺寸对旋流冷壁燃烧室性能的影响

李凯; 曾卓雄; 徐义华

doi:10.15892/j.cnki.djzdxb.2015.04.021

弹箭与制导学报 >

2015 , Vol. 35 >Issue 4: 85 - 89

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2015.04.021

火箭技术

进气管结构及尺寸对旋流冷壁燃烧室性能的影响

李凯 ,
曾卓雄 ,
徐义华

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1 南昌航空大学飞行器工程学院, 南昌 330063
2 上海电力学院能源与机械工程学院, 上海 200090

李凯(1991-),男,浙江嘉兴人,研究生,研究方向:航空工程。

收稿日期: 2014-07-02

网络出版日期: 2025-05-26

基金资助

国家自然科学基金(51066006;51266013);航空科学基金(2013ZB56002; 2013ZB56004)

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Effect of Inlet Duct on Performance of Swirl-cooled Combustor Chamber

LI Kai ,
ZENG Zhuoxiong ,
XU Yihua

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1 School of Aircraft Engineering, Nanchang Hangkong University, Nanchang 330063, China
2 College of Energy and Mechanical Engineering, Shanghai University of Electris Power, Shanghai 200090, China

Received date: 2014-07-02

Online published: 2025-05-26

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摘要

为了考察进气管结构尺寸对旋流冷壁燃烧室性能的影响,采用雷诺应力模型(RSM)对矩形进气管、圆形进气管和三角形进气管的旋流冷壁燃烧室进行了数值模拟。结果表明:综合考虑燃烧效率、总压损失、冷壁效果以及出口温度分布,矩形进气管较圆形与三角形进气管性能更优。矩形进气管入口长宽比对总压损失系数的影响不大,对出口温度分布、燃烧效率影响较大。矩形进气管入口长宽比为0.64时,旋流冷壁室综合性能达到最佳。

关键词： 旋流冷却; 进气管结构尺寸; 燃烧室性能; 数值模拟

本文引用格式

李凯 , 曾卓雄 , 徐义华 . 进气管结构及尺寸对旋流冷壁燃烧室性能的影响[J]. 弹箭与制导学报, 2015 , 35(4) : 85 -89 . DOI: 10.15892/j.cnki.djzdxb.2015.04.021

Abstract

In order to study effect of inlet duct on performance of swirl-cooled combustor chamber, Reynolds stress model (RSM) was used to carry out simulations of swirl-cooled combustor chamber with different inlet duct structures (rectangular inlet, circular inlet and triangular inlet). The results show that considering combustion efficiency, total pressure loss, cooling effect of wall outlet temperature distribution, the performance of rectangular inlet duct is better than circular or triangular inlet duct. Entrance aspect ratio has little effect on total pressure loss coefficient, but has greater impact on outlet temperature distribution and combustion efficiency. Under conditions of this paper, when the aspect ratio of the rectangular inlet duct gets to 0.64, the comprehensive performance of swirl-cooled combustor reaches optimal.

Key words： swirl-cooled; structures and size of inlet duct; performance of combustor chamber; numerical simulation

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