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弹箭与制导学报 >

2020 , Vol. 40 >Issue 5: 81 - 86

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2020.05.020

喷水角度对高温燃气冷却效果影响的数值仿真研究

  • 熊云 ,
  • 左红星 ,
  • 李广武 ,
  • 李超
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  • 西安航天动力测控技术研究所, 西安 710025

熊云(1995-),男,福建龙岩人,硕士研究生,研究方向:固体火箭发动机地面试验仿真。

收稿日期: 2019-12-09

  网络出版日期: 2025-05-30

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Numerical Simulation Study on the Effect of Spray Angle on High Temperature Gas Cooling Effect

  • XIONG Yun ,
  • ZUO Hongxing ,
  • LI Guangwu ,
  • LI Chao
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  • Xi’an Aerospace Propulsion Testing Technology Research Institute, Xi’an 710025, China

Received date: 2019-12-09

  Online published: 2025-05-30

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摘要

针对固体火箭发动机地面试验排出的高温燃气产生的隐蔽性差及热污染问题,提出通过在扩张段安装喷水支板的方法,利用液态水相变吸热使燃气温度下降,达到隐蔽试验目的的同时减少热污染。采用SST K-Omega、DPM、组分输运等模型对固体火箭发动机地面点火试验进行流场仿真,对比和分析了喷水前后的流场图及喷水角度对出口温度的影响。计算结果表明,喷水冷却能有效降低出口温度。在讨论的几个喷水角度中,垂直喷水的冷却效果最好。

关键词： 固体火箭发动机; 喷水冷却; 喷射角度; 高温燃气; CFD; 隐蔽试验

本文引用格式

熊云 , 左红星 , 李广武 , 李超 . 喷水角度对高温燃气冷却效果影响的数值仿真研究[J]. 弹箭与制导学报, 2020 , 40(5) : 81 -86 . DOI: 10.15892/j.cnki.djzdxb.2020.05.020

Abstract

In the ground firing test of solid rocket engine,concealment and thermal pollution problems caused by hot gas discharged from Laval nozzle.In order to prevent tests from being detected,it is suggested that water spray can be used to reduce gas temperature.In this paper, the flow field simulation of solid rocket engine ground firing test is carried out by using SST K-Omega, DPM, component transport and other models. The flow field contours with and without spraying water and the influence of various angles on outlet temperature were compared and analyzed. The results show that spray cooling can effectively reduce the outlet temperature. Among the several water spray angles discussed, the vertical angle has the best cooling effect.

Key words： solid rocket engine; water spray cooling; spray angle; high temperature gas; CFD; hidden test

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