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CFD/CSD Approach to Evaluate the Aeroelastic Response of Hypersonic Vehicle Wing
Jinan Lv,Li Guo,Jian Sun,Ziqiang Liu 한국전산유체공학회 2014 한국전산유체공학회 학술대회논문집 Vol.2014 No.10
A coupling numerical simulation technology which combined computational fluid dynamics (CFD) method with computational structure dynamic (CSD) is developed. Several kinds of mode to exchange data for CFD/CSD coupled computation is designed. In this paper, aeroelastic response of hypersonic wing under Ma 5 wind tunnel experimental condition is calculated and compared with piston theory method as an example. The influence of coupling mode is discussed. The computed result indicates CDF/CSD method of aeroelastic simulation on the threedimensional wing is feasible and credible.
Hypersonic thin plate flutter problem prediction using CFD-CSD approach
Jinan Lv,Zhichao Fu,Feng Feng,Ziqiang Liu 한국전산유체공학회 2014 한국전산유체공학회 학술대회논문집 Vol.2014 No.10
Hypersonic low-aspect-ratio thin plate flutter problem should be considered as a special aeroelastic case. In this paper, the flutter problem of a hypersonic thin elastic plate under Ma 6 flight condition is analyzed using CFD/CSD approach. The computed results indicate that in this case the coupling time step size should be considered cautiously but dual-time stepping and viscosity effect appears to be not significant for aeroelastic response of the thin plate.