Analysis of particle motion in solid rocket motor under different acceleration

WANG Liwu; ZHAO Chaokun; TIAN Weiping; GUO Yunqiang

doi:10.7638/kqdlxxb-2018.0193

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Analysis of particle motion in solid rocket motor under different acceleration

更新时间：2026-05-28

- Analysis of particle motion in solid rocket motor under different acceleration
- Vol. 38, Issue 5, Pages: 874-879(2020)
- 作者机构：
  
  1. 西北工业大学燃烧、热结构与内流场重点实验室,西安,710072
  2. 中国航天科技集团有限公司第四研究院第四十一研究所,西安,710025
  3. 中国航天科技集团有限公司第四研究院,西安,710025
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2018.0193
  CLC： V435
- Published：2020
- 稿件说明：
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王立武, 赵朝坤, 田维平, 郭运强. 过载对固体发动机凝相粒子运动的影响分析[J]. 空气动力学学报, 2020, 38(5): 874-879.

WANG Liwu, ZHAO Chaokun, TIAN Weiping, et al. Analysis of particle motion in solid rocket motor under different acceleration[J]. 2020, 38(5): 874-879.
王立武, 赵朝坤, 田维平, 郭运强. 过载对固体发动机凝相粒子运动的影响分析[J]. 空气动力学学报, 2020, 38(5): 874-879. DOI： 10.7638/kqdlxxb-2018.0193.

WANG Liwu, ZHAO Chaokun, TIAN Weiping, et al. Analysis of particle motion in solid rocket motor under different acceleration[J]. 2020, 38(5): 874-879. DOI： 10.7638/kqdlxxb-2018.0193.

摘要

为了获得过载对固体发动机凝相粒子运动规律的影响，采用理论分析和数值仿真相结合的方法，分析了不同过载条件下凝相粒子运动及壁面粒子浓度分布情况。结果表明，横向过载将改变粒子的运动轨迹，引起粒子在发动机内部停留时间的增加；在过载条件作用下，燃烧室筒段壁面和喷管收敛段壁面均存在粒子浓度局部增大的区域，呈现多峰分布现象；不同横向过载、轴向过载条件通过改变粒子的偏转方向和随流性，最终导致燃烧室壁面和喷管收敛段壁面粒子浓度的改变。

Abstract

In order to obtain the regulation of particle motion in solid rocket motor(SRM) under overload conditions

theoretical and numerical methods are used to analyze particle motion and concentration under different acceleration. A three-dimensional model of viscous compressible two-phase flow in the SRM was established. The Eulerian-Lagrangian multiphase model was used to calculate the trajectories of the discrete phase. This analysis used the numerical solution of Reynolds-averaged Navier-Stokes equations for the continuous phase

coupled with a Lagrangian analysis for the discrete phase to simulate the two-phase internal flow. Results show that the lateral overload increases particle residence time in the SRM by changing the trajectory of particles. In addition

the surface of the SRM combustion chamber and the nozzle convergent section both have an area with high particle concentration

which has an multimodal distribution. Furthermore

different lateral and axial overload leads to the change of particle concentration in surface of the SRM combustion chamber and the nozzle convergent section

which is caused by transforming the direction of particle.

关键词

Keywords

references

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