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Large-eddy simulation of flows past a flapping airfoil using immersed boundary method
Yang XL(杨晓雷); He GW(何国威); Zhang X(张星); He GW
Conference Name9th International Conference on Femtochemistry, Femtobiology and Femtophysics - Frontiers in Ultrafast Science and Technology (Femtochemistry IX)
Conference DateAUG 08-13, 2009
Conference PlaceBeijing, PEOPLES R CHINA
AbstractThe numerical simulation of flows past flapping foils at moderate Reynolds numbers presents two challenges to computational fluid dynamics: turbulent flows and moving boundaries. The direct forcing immersed boundary (IB) method has been developed to simulate laminar flows. However, its performance in simulating turbulent flows and transitional flows with moving boundaries has not been fully evaluated. In the present work, we use the IB method to simulate fully developed turbulent channel flows and transitional flows past a stationary/plunging SD7003 airfoil. To suppress the non-physical force oscillations in the plunging case, we use the smoothed discrete delta function for interpolation in the IB method. The results of the present work demonstrate that the IB method can be used to simulate turbulent flows and transitional flows with moving boundaries.
KeywordTransitional Flows Moving Boundary Immersed Boundary Method Smoothed Discrete Delta Function Laminar Separation-bubbles
Indexed ByCPCI(ISTP)
Document Type会议论文
Corresponding AuthorHe GW
Recommended Citation
GB/T 7714
Yang XL,He GW,Zhang X,et al. Large-eddy simulation of flows past a flapping airfoil using immersed boundary method[C]SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010:1101-1108.
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