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http://dx.doi.org/10.5139/JKSAS.2020.48.2.109

Computational Analysis of the Delta Wing-Cylindrical Body Configuration Using the Three-Dimensional Patched-Grid Algorithm  

Park, Hyeon Don (Department of Aerospace Information Engineering, Konkuk University)
Kim, Young Jin (Department of Aerospace Information Engineering, Konkuk University)
Park, Soo Hyung (Department of Aerospace Information Engineering, Konkuk University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.2, 2020 , pp. 109-117 More about this Journal
Abstract
A structured grid system can be efficiently constructed by applying the patched-grid algorithm that alleviates many constraints of the conventional structured grid system. Three approaches were applied to case 4 of the EFD-CFD workshop: delta wing-cylindrical body shape to solve the existing grid generation problems and verify the results by comparing them with experimental data. Surface pressure distributions slightly differed from the experimental data at high angles of attack. The slope variation of the pitching moment with Mach number is analyzed and the variation can be explained with the tuck under phenomenon. In the supersonic region, the bow shock waves in front of the shape expand the region generating lift up to the rear of the configuration. Also, the tendency of the pitching moment with both Mach number and angle of attack was analyzed by comparing the positions of the center of pressure and the center of gravity.
Keywords
Computational Fluid Dynamics; EFD-CFD Workshop; Delta Wing; Patched-Grid Algorithm;
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Times Cited By KSCI : 2  (Citation Analysis)
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