Comparison of Performance on Hypersonic Intakes in Off-Design Conditions through Numerical Simulations; [전산해석을 통한 탈설계점에서의 극초음속 흡입구 성능 비교]

초록

Since the hypersonic intake is directly related to the overall performance of the engine, it is essential to analyze performance characteristics under various off-design conditions. In this paper, Busemann intake and conical intake with external compression were designed, and numerical simulations were performed at on/off-design conditions. Based on the results, the overall performance characteristics of two types of intake were analyzed in various Mach numbers and angle of attacks. The results showed that performance degradation of Busemann intake with truncation angle of 2 degrees was minimal. Also, the performance of Busemann intake was higher than external compression intake at various Mach numbers, however, the starting characteristics were significantly reduced with an angle of attack. © 2019 The Korean Society for Aeronautical and Space Sciences.

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