Application of unsteady fluid network to air cooling system in engine

HOU Sheng-ping; TAO Zhi; HAN Shu-jun; DING Shui-ting; XU Guo-qiang; WU Hong-wei

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Application of unsteady fluid network to air cooling system in engine

更新时间：2026-07-07

- Application of unsteady fluid network to air cooling system in engine
- Vol. 24, Issue 3, (2009)
- 作者机构：
  
  北京航空航天大学能源与动力工程学院航空发动机气动热力重点实验室,北京,100191
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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HOU Sheng-ping, TAO Zhi, HAN Shu-jun, et al. Application of unsteady fluid network to air cooling system in engine[J]. 2009, 24(3).
DOI：

HOU Sheng-ping, TAO Zhi, HAN Shu-jun, et al. Application of unsteady fluid network to air cooling system in engine[J]. 2009, 24(3). DOI：

摘要

将流体网络法与非稳态模拟方法相结合应用到发动机空气冷却系统沿程温度、压力、流量的非稳态特性预测中.本方法将空气系统简化为节点和元件组成的网络

节点和元件处建立守恒方程

针对传统解法的计算稳定性问题引入了压力修正和积分方法相结合的求解方法.程序应用到可参考对照的模型中得到验证.验证后的程序被应用到发动机轴部冷却通道空气系统非稳态特性预测中.

Abstract

A new approach combining fluid network and unsteady simulation method was developed to predict the unsteady characteristic of pressure

temperature and mass flow rate of the flow in engine.The air cooling system was simplified into a fluid network comprised of nodes and branches.Conservation equations were solved by a newly introduced method to deal with the computational unstabilization problem.As a validation

the program was applied to a model which had provided a correlation

and the computational results show good agreement with the benchmark.Then the program was used to predict the unsteady characteristic of flow in the cavities along the axis in the engine.

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Related Author

HOU Sheng-ping

TAO Zhi

HAN Shu-jun

DING Shui-ting

XU Guo-qiang

HOU Sheng-ping

XU Guo-qiang

DING Shui-ting

Related Institution

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

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

School of Mechanical Engineering,Beijing Institute of Technology

National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics,School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics

School of Astronautics, Beijing University of Aeronautics and Astronautics

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