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Drag and heat-flux assessment of hypersonic flow on an asymmetric blunt shaped body

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Abstract

Assessment of aerodynamic forces and heat-transfer rates for certain flight conditions is an essential task in designing a hypersonic vehicle. Experimental investigation of impulse ground-based type facilities is researchers standard practice for such purposes. However, due to extremely short test times of the flow, measurement of aerodynamic forces and heat-transfer rates in such facilities causes many technical issues. This study presents a series of drag and heat-flux measurements taken in the shock tunnel. An asymmetric blunt shaped forebody was tested at a nominal Mach 6. A conventional accelerometer-based drag balance system was applied to the test model during force measurements. K-type thermocouple sensors were used to measure surface heat-transfer rates. A comprehensive procedure for implementation and calibration of each measurement technique is provided in a single manuscript.

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Acknowledgments

This work was supported by the Korea Aerospace Research Institute (KARI) under grant number KR21215. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MIST) (No. 2022R1C1C1006414).

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Correspondence to Ikhyun Kim.

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Ikhyun Kim is currently an Assistant Professor in the Department of Mechanical Engineering at Keimyung University. His research interests include highspeed aerothermodynamics, hypersonic gas-surface interaction and shock tube studies.

Keunyeong Kim is currently a Ph.D. student in the Department of Aerospace Engineering at Korean Advanced Institute of Science and Technology. His research interests include physics and applications of high-speed ground test facilities.

Sangha Park is currently a Ph.D. student in the Department of Aerospace Engineering at Korean Advanced Institute of Science and Technology. His research interests include shock tube experiments and gas-surface interaction.

Byungkook Jang is currently a Ph.D. student in the Department of Aerospace Engineering at Korean Advanced Institute of Science and Technology. His research interests include measurement techniques of physical properties in highspeed ground test facilities.

Gisu Park is currently an Associate Professor in Department of Aerospace Engineering at Korean Advanced Institute of Science and Technology. His research interests include Hypersonic aerothermodynamics, ground test facilities and instrumentations.

Gi-Hyuk Choi is a Principal Researcher and working on TPS for re-entry in Satellite Space Exploration System Design Division at Korea Aeropsace Research Institute.

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Kim, I., Kim, K., Park, S. et al. Drag and heat-flux assessment of hypersonic flow on an asymmetric blunt shaped body. J Mech Sci Technol 36, 3995–4003 (2022). https://doi.org/10.1007/s12206-022-0322-4

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  • DOI: https://doi.org/10.1007/s12206-022-0322-4

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