| 燃油附件耐火试验温度场数值模拟与验证 |
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| 引用本文： | 盛峰,陆浩.燃油附件耐火试验温度场数值模拟与验证[J].航空发动机,2019,45(2):50-54. |
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| 作者姓名： | 盛峰 陆浩 |
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| 作者单位： | 中国航发控制系统研究所,江苏无锡,214063;中国航发控制系统研究所,江苏无锡,214063 |
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| 基金项目： | 航空动力基础研究项目资助 |
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| 摘 要： | 为了准确预测耐火试验过程中航空发动机燃油附件的热场分布,提出了1种等效火焰建模方法建立相应的流固耦合传热模型,并对着火条件下试验件的工作特性进行数值模拟,分析了流动传热的机理,得到3维计算域的稳态温度场分布。对该试验件开展着火验证试验,监测了局部温度参数。仿真与试验结果的对比分析表明:仿真所得热场结构分布合理,局部温度值与试验结果吻合较好,该方法能准确地模拟火焰与试验件间的传热特性,可为航空发动机燃油附件的耐火设计提供参考。
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| 关 键 词： | 燃油附件 耐火试验 数值模拟 流固耦合 航空发动机 |
Numerical Simulation and Verification of Temperature Field in Fire Resistant Test of Fuel Accessory |
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| Authors: | SHENG Feng LU Hao |
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| Affiliation: | AECC Aero Engine Control System Institute,Wuxi Jiangsu 214063,China |
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| Abstract: | In order to accurately predict the thermal field distribution of aeroengine fuel accessory during fire resistant test,an
equivalent flame modeling method was proposed to establish the corresponding fluid -solid coupled heat transfer model. Numerical
simulation of the test article working characteristics under ignition condition was carried out. The mechanism of flow heat transfer was
analyzed,and the steady-state temperature field distribution of three-dimensional computational domain was obtained. The fire verification
test was carried out on the test article,and the local temperature parameters were monitored. The comparison and analysis of simulation and
test results show that the structure distribution of the thermal field is reasonable,and the local temperature values are in good agreement
with the experimental results. This method can accurately simulate the heat transfer characteristics between the flame and the test article,
and can provide a reference for the fire resistant design of the aeroengine fuel accessory. |
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| Keywords: | fuel accessory fire resistant numerical simulation fluid-solid coupled aeroengine |
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