小型航空二冲程风冷发动机缸体流固耦合传热的仿真

唐梓杰; 丁水汀; 杜发荣

小型航空二冲程风冷发动机缸体流固耦合传热的仿真

北京航空航天大学交通科学与工程学院,北京 100191

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出版历程
- 收稿日期: 2010-05-07
- 修回日期: 2010-10-12
- 刊出日期: 2011-01-28

Simulation of fluid-solid coupled heat transfer of cylinder of a small two-stroke air-cooled aero-engine

School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics,Beijing 100191,China

摘要

摘要: 以某小型航空二冲程风冷发动机为研究对象,结合风冷发动机缸体的传热特点和汽油机的燃烧规律并基于流固耦合理论,对风冷发动机缸体传热进行了模拟计算.根据耦合传热理论,将缸体与缸套的导热转化为系统内部边界条件进行简化处理,并将模拟计算的结果与地面试验结果相比较,证明了耦合传热方法在研究缸体热负荷方面的可靠性.在考虑飞行器整个飞行包线下的外界大气环境下,对风冷发动机在整个工作高度范围内缸体的传热仿真进行了模拟计算,为发动机缸体传热的进一步研究开发奠定了基础.
- 二冲程 /
- 风冷发动机 /
- 流固耦合 /
- 传热 /
- 缸体
Abstract: Based on a small two-stroke air-cooled aero-engine,the heat transfer of cylinder for air-cooled engine was simulated according to the theory of the fluid-solid coupled heat transfer,in combination with characteristics of heat transfer and discipline of combustion.In this theory,the heat conduction between the cylinder and cylinder liner was considered as internal condition of the system,which can make the simulation simple and convenient;as compared with the experiment result;this shows that coupled analysis is reliable about the heat transfer of the cylinder.Considering the whole working condition of the aerial vehicle,the heat transfer of the cylinder within the working altitude was simulated, thus establishing a basis for further study of the cylinder heat transfer.
- two-stroke /
- air-cooled engine /
- fluid-solid coupled /
- heat transfer /
- cylinder

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参考文献(18)

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