A Ground Test Method and the Error Analysis of the Heat Exchanger in the Intake of Aircraft

Abstract:

A ground test method of the heat exchanger in intake is proposed using simplified method. A theoretical analysis was carried out to investigate its influences on the performance of heat exchanger. The results show that the performance of heat exchanger keeps invariable with the density of gas if the temperature and mass flow rate remain the same. The error caused by substituting total pressure of free stream for inlet entrance was analyzed and the results show that for subsonic inlet the experimental error is relatively small and the experimental error increasing rapidly as flight Mach number exceed 1.2 and flight altitude has little impact on the experimental error while the error increasing slightly with flight altitude.

• Periodical: Advanced Materials Research (Volumes 1025-1026)
• Pages: 137-142
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1025-1026.137
• Online since: September 2014
• Authors: Yu Fei Cai*, Chun Ling Zhu, Su Qing Shi
• Keywords: Error Analysis, Ground Test, Heat Exchanger, Inlet, Principle of Similitude

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