Performance of condenser duct under flight condition of a certain transport aircraft

doi:10.11949/0438-1157.20191093

Abstract

Abstract:

The condenser used in evaporation circulation refrigeration system of a transport aircraft was studied. The difference of evaporation circulation refrigeration system working environment among transport aircraft, helicopter and small civil aviation aircraft was analyzed. Star CCM+ software was used for simulation modeling, through the fluid simulation analysis to the condenser air duct, the causes of the pressure failure of the evaporation circulation refrigeration system under the flight condition of the transport aircraft were described, the condenser air duct optimization scheme is put forward. Computational fluid dynamics (CFD) is used to verify the effectiveness of the optimization scheme. Finally, flight verification was carried out on the transport aircraft.

Key words: transport aircraft, heat transfer, condenser, computer simulation, optimal design

摘要：

以某型运输机蒸发循环制冷系统用冷凝器为研究对象，分析了运输机与直升机、小型通航飞机蒸发循环制冷系统工作环境的区别，应用Star CCM+软件进行了仿真建模，通过对冷凝器风道的流体仿真分析，阐述了飞行状态下引起蒸发循环制冷系统压力故障的原因，在此基础上提出了冷凝器风道优化方案，并应用流体仿真分析的方法，验证了优化方案的有效性，最后在该运输机上进行了试飞验证。

关键词: 运输机, 传热, 冷凝器, 计算机模拟, 优化设计

CLC Number:

TQ 028.8

Hang ZHANG, Liping PANG, Ying WANG. Performance of condenser duct under flight condition of a certain transport aircraft[J]. CIESC Journal, 2020, 71(S1): 166-171.

张行, 庞丽萍, 王莹. 某型运输机飞行状态下冷凝器风道性能[J]. 化工学报, 2020, 71(S1): 166-171.

Figures/Tables 8

Fig.1 Sketch of transport aircraft condenser duct

Fig.2 Simulation model of condenser duct

Fig.3 Vector diagram of airflow

Fig.4 p-h diagram of system in ground state

Fig.5 p-h diagram of system during flight

Fig.6 Schematic diagram of inlet grilles

Fig.7 Schematic diagram of outlet grilles

Fig.8 Vector diagram of airflow with grilles

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