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http://dx.doi.org/10.5139/JKSAS.2021.49.7.529

An Experimental Study on Internal Drag Correction of High Speed Vehicle Using Three Probes  

Jin, Hyeon (Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.49, no.7, 2021 , pp. 529-537 More about this Journal
Abstract
Wind tunnel tests were carried out with a scramjet high speed vehicle. Since the scramjet engine does not have a compressor, it has a simple structure, but it is important to design the intake for the supersonic combustion in the combustion chamber. In this study, internal flow characteristics and the starting condition were analyzed by measuring the pressure at the isolator exit just before the combustion chamber, and the intake performance parameters were calculated and compared the result on every Mach number. The aerodynamic characteristics of the flow-through high speed vehicle were analyzed and internal drag correction is required to precisely analyze the aerodynamic characteristics. In this paper, an experimental technique using three probes for internal drag correction was proposed. By applying internal drag correction, it was able to figure out the effect of the internal flow on the aerodynamic force of the vehicle.
Keywords
Wind Tunnel Test; Scramjet; Wedge Probe; Cone Probe; Pitot Probe; Internal Drag Correction;
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