基于重叠网格与多孔介质的航空活塞发动机中冷器性能仿真

doi:10.16731/j.cnki.1671-3133.2025.08.011

现代制造工程 ›› 2025, Vol. 539 ›› Issue (8): 100-107.doi: 10.16731/j.cnki.1671-3133.2025.08.011

• CAD/CAE/CAPP/CAM • 上一篇下一篇

基于重叠网格与多孔介质的航空活塞发动机中冷器性能仿真

叶骏松¹, 周丹^1,2, 邓涛^1,3,4

1 重庆交通大学航空学院,重庆 400074;
2 重庆宗申航空发动机制造股份有限公司,重庆 400054;
3 绿色航空能源动力重庆市重点实验室,重庆 400074;
4 重庆交通大学绿色航空技术研究院,重庆 400074

收稿日期:2024-11-04 出版日期:2025-08-18 发布日期:2025-09-09
通讯作者: 邓涛,教授,博士生导师,主要研究方向为绿色航空能源动力系统、油电混合分布式动力飞行器系统等。E-mail:d82t722@cqjtu.edu.cn。
作者简介:叶骏松,硕士研究生,主要研究方向为无人机机舱热管理。周丹,高级工程师,硕士生导师,主要研究方向为小型热动力设计理论及产业化应用,航空动力系统集成设计及理论研究。
基金资助:
国家自然科学基金资助项目(52275051);重庆市教育委员会科学技术研究重大项目(KJZD-M202400703);重庆市研究生导师团队建设项目(JDDSTD2022007);重庆市研究生联合培养基地建设项目(JDLHPYJD2022001,JDLHPYJD2023002);重庆交通大学自然科学类揭榜挂帅项目(XJ2023000701)

Simulation of intercooler performance for aviation piston engine based on overset grid and porous media

YE Junsong¹, ZHOU Dan^1,2, DENG Tao^1,3,4

1 School of Aeronautics,Chongqing Jiaotong University,Chongqing 400074,China;
2 Chongqing Zongshen Aero Engine Manufacturing Co.,Ltd.,Chongqing 400054,China;
3 Chongqing Key Laboratory of Green Aviation Energy and Power,Chongqing 400074,China;
4 The Green Aerotechnics Research Institute of Chongqing Jiaotong University,Chongqing 400074,China

Received:2024-11-04 Online:2025-08-18 Published:2025-09-09

摘要/Abstract

摘要： 针对某型航空活塞发动机空-空中冷器内部气流流动非均匀性及因结构紧凑、翅片小而密导致的仿真计算量大、精度不高的问题,提出一种基于重叠网格与复合多孔介质模型的数值模拟方法。通过建立复合多孔介质模型和基于重叠网格的换热器模型,研究不同流量条件下中冷器内部气流的流动均匀性和换热特性。仿真结果表明,中冷器气流流动均匀性受冷、热侧流量双重影响,当热侧流量为0.091 7 kg/s时,其整体均匀系数随冷侧流量增加降低了1.88 %;当热侧流量为 0.108 3 kg/s时,其整体均匀系数随冷侧流量的增加降低了0.82 %。风洞试验与仿真结果对比表明,该方法能够准确预测中冷器的气流流动和传热特性。中冷器出口温度相对误差不超过2 %,换热功率相对误差不超过7.5 %,仿真结果与风洞试验值的误差均在合理范围内,验证了模型的准确性和可靠性。

关键词: 航空活塞发动机, 中冷器, 复合多孔介质模型, 重叠网格, 换热器模型

Abstract: Aiming at the issues of flow non-uniformity and high computational demands due to the compact structure and fine,dense fins of an air-to-air intercooler in a specific type of aviation piston engine,it proposed a numerical simulation method based on overset grids and a composite porous media model. By developing a composite porous media model and a heat exchanger model based on overset grids,the airflow uniformity and heat transfer characteristics within the intercooler under different flow conditions were investigated. The simulation results show that the flow uniformity of the intercooler is influenced by both hot-and cold-side flow rates.When the hot-side flow rate is 0.091 7 kg/s,the overall uniformity coefficient decreases by 1.88 % with an increase in cold-side flow rate,and by 0.82 % when the hot-side flow rate is 0.108 3 kg/s. Comparison between wind tunnel test results and simulations indicates that this method accurately predicts the flow and heat transfer characteristics of the intercooler. The relative error for intercooler outlet temperature does not exceed 2 %,and for heat transfer power,it is within 7.5 %. These simulation results are within a reasonable range of the experimental values,validating the model′s accuracy and reliability.

Key words: aviation piston engine, intercooler, composite porous media model, overset grids, heat exchanger model

中图分类号:

V234

叶骏松, 周丹, 邓涛. 基于重叠网格与多孔介质的航空活塞发动机中冷器性能仿真[J]. 现代制造工程, 2025, 539(8): 100-107.

YE Junsong, ZHOU Dan, DENG Tao. Simulation of intercooler performance for aviation piston engine based on overset grid and porous media[J]. Modern Manufacturing Engineering, 2025, 539(8): 100-107.

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基于重叠网格与多孔介质的航空活塞发动机中冷器性能仿真

Simulation of intercooler performance for aviation piston engine based on overset grid and porous media

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