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http://dx.doi.org/10.5139/JKSAS.2010.38.5.414

Design Optimization of Transonic Wing/Fuselage System Using Proper Orthogona1 Decomposition  

Park, Kyung-Hyun (서울대학교 기계항공공학부 대학원)
Jun, Sang-Ook (서울대학교 기계항공공학부 대학원)
Cho, Maeng-Hyo (서울대학교 기계항공공학부)
Lee, Dong-Ho (서울대학교 기계항공공학부, 향공우주신기술연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.38, no.5, 2010 , pp. 414-420 More about this Journal
Abstract
This paper presents a validation of the accuracy of a reduced order model(ROM) and the efficiency of the design optimization using a Proper Orthogonal Decomposition(POD) to transonic wing/fuselage system. Three dimensional Euler equations are solved to extrude snapshot data of the full order aerodynamic analysis, and then a set of POD basis vectors reproducing the behavior of flow around the wing/fuselage system is calculated from these snapshots. In this study, reduced order model constructed through this procedure is applied to several validation cases, and then it is confirmed that the ROM has the capability of the prediction of flow field in the space of interest. Additionally, after the design optimization of the wing/fuselage system with the ROM is performed, results of the ROM are compared with results of the design optimization using response surface model(RSM). From these, it can be confirmed that the design optimization with the ROM is more efficient than RSM.
Keywords
Design optimization; Proper Orthogonal Decomposition(POD); Wing/fuselage system; Reduced order Model(ROM);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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