| 微涡喷发动机主轴内冷通道传热数值研究 |
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| 引用本文： | 刘友宏,单鹏.微涡喷发动机主轴内冷通道传热数值研究[J].航空动力学报,2009,24(3):477-482. |
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| 作者姓名： | 刘友宏 单鹏 |
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| 作者单位： | 北京航空航天大学能源与动力工程学院,北京,100191 |
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| 基金项目： | 航空科技创新基金重点项目 |
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| 摘 要： | 对推力为100N,转速为1×105r/min的微型涡喷发动机BUAA100的特点进行了介绍,然后对该发动机的主轴内冷通道基于Navier-Stokes方程和能量方程建立了计算模型,采用迭代法解决了前螺母简易离心泵进口边界条件和通道下游边界流动、换热相互耦合的问题,进行了数值模拟研究.给出的主轴内冷通道、简易离心泵创新设计方案和数值研究方法,可供其它微发研究参考.
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| 关 键 词： | 微涡喷发动机 主轴内冷通道 前螺母简易离心泵 数值模拟 |
| 收稿时间： | 2008/2/14 0:00:00 |
| 修稿时间： | 2008/9/10 0:00:00 |
Numerical study on main shaft inner cooling channel of a micro turbojet |
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| LIU You-hong and SHAN Peng.Numerical study on main shaft inner cooling channel of a micro turbojet[J].Journal of Aerospace Power,2009,24(3):477-482. |
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| Authors: | LIU You-hong and SHAN Peng |
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| Institution: | School of Jet Propulsion;Beijing University of Aeronautics and Astronautics;Beijing 100191;China |
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| Abstract: | The innovative ideas of a high power density micro-turbojet engine with a thrust 100 N and a rotational speed 100 000 r/min were presented in this paper.And,the research focused on the new design feasibility of the main shaft inner cooling channel,especially on the pumping air mass flow capacity of the simple front nut micro-pumps.The flow field and the temperature field of the main shaft inner cooling channel were numerically simulated based on the Navier-Stokes equations.The problem with the boundary cond... |
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| Keywords: | micro turbojet main shaft inner cooling channel simple front nut micro-pump numerical simulation |
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