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Large-eddy simulation of flows past a flapping airfoil using immersed boundary method

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Abstract

The 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.

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Authors and Affiliations

  1. The State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China

    XiaoLei Yang, GuoWei He & Xing Zhang

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  1. XiaoLei Yang
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  2. GuoWei He
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  3. Xing Zhang
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Correspondence to GuoWei He.

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Contributed by HE GuoWei

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Yang, X., He, G. & Zhang, X. Large-eddy simulation of flows past a flapping airfoil using immersed boundary method. Sci. China Phys. Mech. Astron. 53, 1101–1108 (2010). https://doi.org/10.1007/s11433-010-3213-0

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  • DOI: https://doi.org/10.1007/s11433-010-3213-0

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