飞机燃油箱热分析研究

推进技术 ›› 2015, Vol. 36 ›› Issue (1): 61-67.

飞机燃油箱热分析研究

吕亚国,任国哲,刘振侠,康振烨

西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072,西北工业大学动力与能源学院，陕西西安 710072

发布日期:2021-08-15
作者简介:吕亚国(1980—)，男，博士，研究领域为航空发动机燃、滑油系统及空气系统。

Thermal Analysis of Fuel Tank for Aircraft

Northwestern Polytechnical University， School of Power and Energy， Xi’an 710072，China,Northwestern Polytechnical University， School of Power and Energy， Xi’an 710072，China,Northwestern Polytechnical University， School of Power and Energy， Xi’an 710072，China and Northwestern Polytechnical University， School of Power and Energy， Xi’an 710072，China

Published:2021-08-15

摘要/Abstract

摘要： 为了预测飞机燃油箱燃油温度在飞行过程中的变化情况，基于热网络法建立了飞机燃油箱非稳态热分析模型。该模型考虑了油箱内部的换热问题，同时又考虑了燃油箱壁面与外界环境间的对流换热、辐射换热以及气流的气动加热问题，将燃油箱热分析的边界扩展至燃油箱外。采用Matlab/Simulink软件实现了飞机整个航程内燃油箱系统的热分析研究，并将热分析计算结果与飞行测试数据进行了对比。结果表明，计算结果与飞行测试数据吻合良好，最大误差不超过3.2℃。

关键词: 飞机；燃油箱；燃油温度；非稳态热分析

Abstract: In order to investigate the changes of fuel temperature in aircraft fuel tanks in the process of flight，an unsteady thermal analysis model is developed based on the thermal network method. The model takes into account the heat transfer inside the fuel tank，at the same time，considering the convective and radiation heat transfer between the fuel tank wall and the external environment，as well as the aerodynamic heat，which extends the boundary conditions of thermal analysis to the outside of the tank. The Matlab/Simulink soft is applied to simulating the thermal characteristics of an aircraft fuel tank throughout the whole voyage. Comparisons show that the simulated results agree with the flight test data well. The maximum error is less than 3.2℃. The model could be used for thermal analysis for aircraft fuel tank system in the stage of aircraft design and the results could instruct the arrangement of heat source components inside and outside the fuel tanks.

Key words: Aircraft；Fuel tank；Fuel temperature；Unsteady thermal analysis

吕亚国,任国哲,刘振侠,康振烨. 飞机燃油箱热分析研究[J]. 推进技术, 2015, 36(1): 61-67.

LV Ya-guo,REN Guo-zhe,LIU Zhen-xia,KANG Zhen-ye. Thermal Analysis of Fuel Tank for Aircraft[J]. Journal of Propulsion Technology, 2015, 36(1): 61-67.

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