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| Methods of the time-domain CFD method integrated different turbulence models |
| Received:March 01, 2012 Revised:August 05, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201303013 |
| KeyWord:transonic flutter moving mesh SST turbulence model SSG Reynolds stress model AGARD 445.6 wing |
| Author | Institution |
| 万兵兵 |
西北工业大学翼型叶栅空气动力学国防科技重点实验室, 西安 |
| 史爱明 |
西北工业大学翼型叶栅空气动力学国防科技重点实验室, 西安 |
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| Abstract: |
| The time-domain CFD method is introduced to analyse the characteristics of the transonic flutter in this paper.The structured dynamic mesh technique is applied to simulate the movement of the flutter response of the AGARD445.6 wing.Full implicit dual-time temporal derivatives and cell-center finite volume method spatial derivatives are adopted to solve the N-S equations and treat the unsteady aerodynamic problem.This paper around the N-S equations without or with the SST turbulence model and SSG Reynolds stress model are numerically simulated.The computing AGARD445.6 wing flutter results validate the physical law of typical transonic flutter "dip" with the bottom near the domain which Mach number is one.Comparisons between computing and experimental flutter characteristics show good agreement,giving confidence in the accuracy of the aeroelastic capability that was developed.Especially in transonic flow period of use of the SST turbulence model,the best results by average relative error in 3% |