| 摘要: |
| 燃油温度是飞机燃油箱可燃性评估的关键参数之一。为了研究飞机燃油箱内温度的分布规律及传热模型的正确性,采用MATLAB/Simulink软件平台搭建出了客机的燃油箱热仿真模型。在输入飞行实验所对应的的边界条件后,通过数值模拟获得燃油箱内部各计算节点处的燃油温度。结果表明,在三种不同的航行条件下,燃油箱热模型仿真结果均能较好地与飞行实验结果吻合,能够将计算误差控制在一定范围内。采用该燃油箱热模型进行热仿真数值模拟可以获得较为准确的飞机燃油箱热特性,能够在飞机设计阶段,用于对燃油箱结构以及内热源部件布置的优化。 |
| 关键词: 飞机 燃油箱 热模型 数值模拟 燃油温度 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Simulation and Calculation of Fuel Temperature in Aircraft Fuel Tank Based on MATLAB/Simulink |
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KANG Zhen-ye, LIU Zhen-xia, REN Guo-zhe, LV Ya-guo
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(College of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China)
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| Abstract: |
| The fuel temperature is one of the key parameters of the aircraft fuel tank flammability assessment. In order to study the temperature distribution of the aircraft fuel tank and the correctness of the heat transfer model, the MATLAB/Simulink software platform was used to build an aircraft fuel tank thermal simulation model. Entering boundary conditions corresponding to flight experiments, the fuel temperature inside the fuel tank at the compute nodes can be obtained through numerical simulation. The results show that under three different sailing conditions, the simulation results of fuel tank thermal model could preferably coincide with the flight test results and calculation error can be controlled within a certain range.Using this fuel tank thermal model in thermal numerical simulation, aircraft fuel tank thermal characteristics can be obtained accurately, and it can be used for optimization of the fuel tank structure and internal heat source component arrangement in the stage of aircraft design. |
| Key words: Aircraft Fuel tank Thermal model Numerical simulation Fuel temperature |
