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弹箭与制导学报 >

2011 , Vol. 31 >Issue 4: 110 - 112

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2011.04.047

火箭技术

射流推力矢量喷管粒子沉积特性数值模拟

  • 宋亚飞 ,
  • 高峰 ,
  • 曾华 ,
  • 文科
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  • 空军工程大学导弹学院,陕西三原 713800

宋亚飞(1988-),男,河南汝州人,硕士研究生,研究方向:发动机内场与工作过程仿真。

收稿日期: 2010-10-25

  网络出版日期: 2025-05-30

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Numerical Simulation on Characteristic of Deposition in Fluidic Thrust Vector Nozzle

  • SONG Yafei ,
  • GAO Feng ,
  • ZENG Hua ,
  • WEN Ke
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  • The Missile Institute, Air Force Engineering University, Shaanxi Sanyuan 713800, China

Received date: 2010-10-25

  Online published: 2025-05-30

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摘要

运用粒子轨道模型对基于激波控制的三维轴对称收缩扩张喷管中的气-固两相流动进行了数值模拟,研究了1~100µm不同直径粒子的沉积特性。计算结果表明:主流中粒子的沉积部位主要集中在喷管的收敛段和喉部附近,粒子直径越大,沉积区域越大,大沉积率越高;二次流中的大尺寸粒子会对扩张段壁面造成烧蚀。射流推力矢量喷管的热防护设计应充分考虑到二次流中粒子对壁面的烧蚀。

关键词： 射流推力矢量喷管; 两相流; 沉积; 数值模拟

本文引用格式

宋亚飞 , 高峰 , 曾华 , 文科 . 射流推力矢量喷管粒子沉积特性数值模拟[J]. 弹箭与制导学报, 2011 , 31(4) : 110 -112 . DOI: 10.15892/j.cnki.djzdxb.2011.04.047

Abstract

Numerical simulations on gas-solid two-phase flow in axisymmetric shock induction controlled vectoring exhaust nozzle were carried out using particle trajectory model. The characteristics of deposition were studied on particles' diameter changed from 1μm to 100μm. The result indicates that the particles in the main flow mainly deposited in the area of divergent part and the throat, and with the accretion of particle diameter, the deposition area extends, the deposition rate increases. Large particles in the secondary flow could ablate the wall. The ablation from particles in secondary flow must be considered into the design of heat-resistant construction.

Key words： fluidic thrust vector nozzle; two-phase flow; deposition; numerical simulation

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参考文献

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