| 民机燃油箱惰化流场的数值仿真及其特性分析 |
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| 引用本文： | 张声奇,王学德,刘卫华,王小平,王志伟.民机燃油箱惰化流场的数值仿真及其特性分析[J].航空计算技术,2012(1):50-53. |
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| 作者姓名： | 张声奇 王学德 刘卫华 王小平 王志伟 |
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| 作者单位： | [1]南京理工大学能源与动力工程学院,江苏南京210094 [2]南京航空航天大学航空宇航学院,江苏南京210016 [3]南京机电液压工程研究中心,江苏南京211100 |
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| 基金项目： | 教育部博士点基金项目资助（20093219120031）; 南京理工大学自主科研基金项目资助（2011YBXM111） |
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| 摘 要： | 根据民机燃油箱冲洗惰化过程的特点,基于FLUENT软件开发了一种用于燃油箱惰化流场数值仿真的计算方法。将方法的计算结果与国外文献中公布的理论模型计算结果和实验数据进行了对比,验证了方法的正确性。对两种采用不同喷口、通气口布置的矩形燃油箱的惰化过程进行了数值仿真计算,分别给出了惰化80 s和2 400 s时的氧浓度分布云图,并进行了对比分析,说明方法在优化设计喷口、通气口位置以达到最优的惰化性能方面有较大优势。
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| 关 键 词： | 燃油箱 燃油冲洗 氧浓度 数值模拟 |
Numerical Simulation and Analysis of Nitrogen-Enriched Air Flow in Civil Aircraft Fuel Tank |
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| ZHANG Sheng-qi,WANG Xue-de,LIU Wei-hua,WANG Xiao-ping,WANG Zhi-wei.Numerical Simulation and Analysis of Nitrogen-Enriched Air Flow in Civil Aircraft Fuel Tank[J].Aeronautical Computer Technique,2012(1):50-53. |
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| Authors: | ZHANG Sheng-qi WANG Xue-de LIU Wei-hua WANG Xiao-ping WANG Zhi-wei |
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| Institution: | 1.School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.College of Aerospace Engineering,Nanjing University of Aeronautics ＆ Astronautics,Nanjing 210016,China; 3.Nanjing Engineering Institute of Aircraft System,Nanjing 211100,China) |
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| Abstract: | According to the characteristic of civil aircraft fuel tank inerting process,a numerical simulation method was developed for nitrogen-enriched air（NEA） flow based on the CFD software FLUENT.The correctness of this method is verified by comparing the CFD results with both the model methods and test data published by FAA.Additionally,a series of simulation were performed on rectangular fuel tanks with different positions of NEA distribution nozzle and vents.And the analysis of the contours of oxygen concentration at 80 s and 2 400 s demonstrates that this method has an advantage on designing the positions of NEA distribution nozzles and vents. |
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| Keywords: | fuel tank fuel washing oxygen concentration numerical simulation |
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