| 前飞状态下直升机动力舱通风冷却性能仿真 |
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| 引用本文： | 谢永奇,高红霞,余建祖.前飞状态下直升机动力舱通风冷却性能仿真[J].空气动力学学报,2011,29(5). |
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| 作者姓名： | 谢永奇 高红霞 余建祖 |
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| 作者单位： | 北京航空航天大学航空科学与工程学院,北京,100083 |
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| 摘 要： | 针对某型直升机动力舱通风冷却系统,提出了一种简化的基于旋翼下洗流的动力舱通风冷却性能计算方法,利用商业CFD软件,计算了前飞状态下采用单进口和双进口共9种方案时动力舱流场和温度场分布,分析了不同进口数、进口大小和位置对动力舱通风冷却性能的影响,并与试飞试验结果进行了对比。结果表明,该方法能够准确预测直升机动力舱通风冷却系统性能,仿真研究结果可以为动力舱通风冷却系统的设计与优化提供科学依据。
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| 关 键 词： | 直升机 数值仿真 流场 温度场 下洗气流 前飞 |
Simulation on the ventilation cooling performance of the helicopter engine nacelle in forward flight |
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| XIE Yong-qi,GAO Hong-xia,YU Jian-zu.Simulation on the ventilation cooling performance of the helicopter engine nacelle in forward flight[J].Acta Aerodynamica Sinica,2011,29(5). |
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| Authors: | XIE Yong-qi GAO Hong-xia YU Jian-zu |
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| Institution: | XIE Yong-qi,GAO Hong-xia,YU Jian-zu(School of Aeronautic Science and Technology,Beijing University of Aeronautics and Astronautics,Beijing 100083,China) |
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| Abstract: | A simplified method of evaluating the ventilation cooling performance of the engine nacelle based on rotor downwash flow was presented,for the engine nacelle ventilation cooling system of the helicopter.Using the business CFD software,the flow field and the temperature field in the nacelle in forward flight were calculated for single-inlet scheme and double-inlets scheme,total up to 9 schemes.The influence on the cooling performance was analyzed for different inlet number,inlet size and inlet position.And t... |
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| Keywords: | helicopter numerical simulation flow field temperature field downwash flow forward flight |
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