航空发动机

张司薇1，2 ，高红霞 1，2 ，冷子昊 3，4 ，苏壮3，4.高效燃-滑油散热器传热性能计算修正模型[J].航空发动机,2025,51(2):105-109

高效燃-滑油散热器传热性能计算修正模型

Heat Transfer Performance Calculation and Correction Model for High-Efficiency Fuel-cooled Oil-Cooler

DOI：

中文关键词: 燃-滑油散热器管壳式换热器传热性能计算模型润滑系统航空发动机

英文关键词:fuel-cooled oil cooler shell-and-tube heat exchanger heat transfer performance calculation model lubrication system aeroengine

基金项目:航空动力基础研究项目资助

作者	单位
张司薇1，2 ，高红霞 1，2 ，冷子昊 3，4 ，苏壮3，4	北京航空航天大学航空科学与工程学院 1 ，人机工效与环境控制重点学科控制实验室 2 ：北京 100191； 3. 中国航发沈阳发动机研究所，4.航空发动机动力传输航空科技重点实验室：沈阳 110015

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中文摘要:

为满足飞机和发动机润滑系统热分析及发动机设计方案论证的需求，采用改进的Bell-Delaware法建立了适用于航空发动机管壳式燃－滑油散热器的传热性能计算模型，对该类散热器的传热性能进行分析，并结合变工况试验结果对模型进行修正。结果表明：修正模型计算出的管壳式燃-滑油散热器的单位温差散热量与试验值相比误差在10%以内，且90%的数据点的比较误差均在5%以内；修正后的计算模型能准确地预测散热器在不同工作状态下的性能，能有效地计算出管壳式燃－滑油散热器在飞行剖面上典型飞行状态点的性能曲线，为预测飞机不同飞行状态点或发动机不同工作状态下的散热器传热特性提供了可靠的依据，为发动机设计和性能评估提供重要支持。

英文摘要:

To address the thermal analysis needs of aircraft and engine lubrication systems and support engine design demonstration, an improved Bell-Delaware method was employed to establish a heat transfer performance calculation model for shell-and-tube fuel- cooled oil cooler in aeroengines. The heat transfer performance of this type of cooler was analyzed, and the model was corrected in combina? tion with the test results under varying operating conditions. The results indicate that the heat rejection rates per unit temperature differ? ence of the shell-and-tube fuel-cooled oil cooler calculated by the corrected model exhibit errors below 10% compared to the test results, of which 90% fall within 5%, Furthermore, the corrected calculation model can accurately predict the performance of the cooler across vary? ing operating conditions and effectively generate the performance curves of the shell-and-tube fuel-cooled oil cooler at typical flight profile points. This provides a robust foundation for predicting the heat transfer characteristics of the cooler under diverse aircraft flight states and engine operating conditions, thereby offering important support for aeroengine design and performance evaluation.

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