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http://dx.doi.org/10.5050/KSNVN.2006.16.4.355

Virtual Flutter Test of a Spanwise Curved Wing Using CFD/CSD Integrated Coupling Method  

Oh, Se-Won (국립경상대학교 대학원 기계항공공학부)
Lee, Jung-Jin (항공우주연구원 스마트무인기사업단)
Kim, Dong-Hyun (국립경상대학교 기계항공공학부 및 항공기부품기술연구소)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.16, no.4, 2006 , pp. 355-365 More about this Journal
Abstract
The coupled time-integration method with a staggered algorithm based on computational structural dynamics (CSD), finite element method (FEM) and computational fluid dynamics (CFD) has been developed in order to demonstrate physical vibration phenomena due to dynamic aeroelastic excitations. Virtual flutter tests for the spanwise curved ing model have been effectively conducted using the present advanced computational method with high speed parallel processing technique. In addition, the present system can simultaneously give a recorded data file to generate virtual animation for the flutter safety test. The results for virtual flutter test are compared with the experimental data of wind tunnel test. It is shown from the results that the effect of spanwise curvature have a tendency to decrease the flutter dynamic pressure for the same flight condition.
Keywords
Curved Wing; Virtual Flutter Test; Parallel Processing; Integrated Coupling Method; CFD; CSD;
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