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弹箭与制导学报 >

2018 , Vol. 38 >Issue 2: 11 - 15

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2018.02.003

LRR 雷诺应力模型在圆柱体底部流场计算中的应用

  • 钱勤建 ,
  • 刘仙名 ,
  • 侯清海
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  • 1 中国空空导弹研究院,河南洛阳 471000
    2 航空制导武器航空科技重点实验室,河南洛阳 471000

钱勤建(1981-),男,浙江金华人,工程师,博士,研究方向:飞行器设计研究。

收稿日期: 2017-05-03

  网络出版日期: 2025-05-28

基金资助

航空科学基金(2014ZA12001)资助

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Application of LRR Reynolds Stress Model to Numerical Simulation ofBase Flow Field for a Cylindrical Model

  • QIAN Qinjian ,
  • LIU Xianming ,
  • HOU Qinghai
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  • 1 China Airborne Missile Academy, Henan Luoyang 471000, China
    2 Aviation Key Laboratory of Science andTechnology on Airborne Guided Weapons, Henan Luoyang 471000, China

Received date: 2017-05-03

  Online published: 2025-05-28

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摘要

采用三维RANS方程结合LRR雷诺应力模型对圆柱体底部流动特性进行了模拟,研究了来流马赫数为2.46条件下无喷流和有喷流两种情况的底部流场,分析了底部压力分布、轴向流动速度分布、流场结构等。结果表明,在无喷流和小喷流条件下,LRR雷诺应力模型预测能较好预测再附点位置和底部压力等参数。所得结果与已有的实验和计算结果非常接近,表明LRR雷诺应力模型能够较好地模拟圆柱体底部流动。

关键词： LRR模型; 底部流动; 超声速流; 数值模拟

本文引用格式

钱勤建 , 刘仙名 , 侯清海 . LRR 雷诺应力模型在圆柱体底部流场计算中的应用[J]. 弹箭与制导学报, 2018 , 38(2) : 11 -15 . DOI: 10.15892/j.cnki.djzdxb.2018.02.003

Abstract

The characteristics of base flow for a cylindrical model in supersonic flow were simulated with 3-D RANS equations and LRR Reynolds Stress Model (RSM). The base flow-fields of the model in a free-stream of Mach 2. 46 with and without base bleed flow results were investigated, and base pressure distribution, axial velocity distribution and flow field structure were analyzed. It is shown that the parameters such as reattachment location and base pressure are predicted well with the LRR RSM for the low injection bleed and without bleed cases. The results are agreed well with other researcher's experimental data and numerical results, which shows that the LRR RSM gives a good performance for simulation of base flow.

Key words： LRR model; base flow; supersonic flow; numerical simulation

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