Numerical study on the starting characteristics of the pulse combustion wind tunnel

ZHANG Xiao-qing; LE Jia-ling

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Numerical study on the starting characteristics of the pulse combustion wind tunnel

更新时间：2026-07-07

- Numerical study on the starting characteristics of the pulse combustion wind tunnel
- Vol. 23, Issue 9, (2008)
- 作者机构：
  
  1. 西南交通大学机械工程学院,成都,610031
  2. 中国空气动力研究与发展中心,绵阳,621000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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ZHANG Xiao-qing, LE Jia-ling. Numerical study on the starting characteristics of the pulse combustion wind tunnel[J]. 2008, 23(9).
DOI：

ZHANG Xiao-qing, LE Jia-ling. Numerical study on the starting characteristics of the pulse combustion wind tunnel[J]. 2008, 23(9). DOI：

摘要

利用计算流体力学软件Fluent

采用隐式双时间步方法模拟非定常过程

控制方程的离散采用二阶迎风格式

湍流模型选择剪切应力输运(SST)k-ω模型

并求解组分扩散方程

对脉冲式燃烧风洞的起动过程进行了数值模拟

分析了喷管起动时流场结构的变化情况和自由射流区超声速流场的建立过程.计算结果为改进风洞起动特性提供了一定的参考依据.

Abstract

The starting process of the pulse combustion wind tunnel is unsteady and very complex.It couldn't be investigated by use of the experimental method in existence.In this paper

the starting process was simulated by the Fluent computational fluid dynamics(CFD) code.The current version of this code employs dual-time formulation

second order upwind interpolation scheme

shear stress transport(SST) k-ω turbulence model

and species transport equation.The transient flow structure during nozzle starting process and the establishing process of supersonic flow in the free jet region were analyzed.The results provide a reference for the improvement of the starting characteristics of the pulse combustion wind tunnel.

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Related Institution

School of Astronautics, Beijing University of Aeronautics and Astronautics

School of Power and Energy,Northwestern Polytechnical University

National Key Laboratory of Science and Technology on Aero-Engines Aero-thermodynamics, School of Jet Propulsion,Beijing University of Aeronautics and Astronautics

College of Aerospace and Materials Engineering, National University of Defense Technology

School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaAcademy of Sciences

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