增升装置微型涡流发生器数值模拟方法研究

doi:CNKI:11-1929/V.20110712.0904.002

Abstract

Abstract: To help carry out the numerical analysis of micro vortex generator (VG)used to control the flow separation of a high lift system, several crucial issues that occur during numerical simulation are solved in this paper. First, in order to avoid excessive grid number caused by the conventional point-to-point gird method, a patched grid technique is adopted. Second, a special boundary condition definition method is used to correspond respectively to the cases of the fitting and non-fitting of micro vortex generator, which will eliminate the disturbance caused by grid change. The combination of such two methods generates a new approach for the numerical analysis of a high lift system with micro vortex generator on it. The wind tunnel data prove that this approach achieves good numerical accuracy and can meet the needs of related research. It offers a reliable way during the numerical research of micro vortex generator design and parameter optimization.

Key words: high lift system, flow separation, flow control, micro vortex generator, numerical simulation, patched grid, turbulence model

CLC Number:

V211.3

CHU Hubing, CHEN Yingchun, ZHANG Binqian, LI Yanlin. Investigation of Numerical Simulation Technique for Micro Vortex Generators Applied to High Lift System[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, 33(1): 11-21.

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Investigation of Numerical Simulation Technique for Micro Vortex Generators Applied to High Lift System

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