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

Large-eddy simulation of flows past a flapping airfoil using immersed boundary method
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使用浸入边界法对经过扑动翼型的流动进行大涡模拟

DOI:
10.1007/s11433-010-3213-0
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发表时间:
2010-05
期刊:
SCIENCE CHINA Physics, Mechanics & Astronomy
影响因子:
--
通讯作者:
Yang,Xiaolei
Yang,Xiaolei
中科院分区:
其他
文献类型:
--
作者:
He, Guowei;Zhang, Xing;Yang,Xiaolei

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中等雷诺数下扑翼绕流的数值模拟对计算流体力学提出了两个挑战:湍流和移动边界。本文发展了直接强迫浸没边界(IB)方法来模拟层流流动.然而,它在模拟湍流和具有移动边界的过渡流方面的性能尚未得到充分评价。在目前的工作中,我们使用IB方法来模拟充分发展的湍流通道流和过渡流通过静止/俯冲SD 7003翼型。为了抑制非物理力振荡的暴跌的情况下,我们使用平滑离散δ函数插值的IB方法。本文的结果表明,IB方法可以用来模拟具有移动边界的湍流和转捩流动。
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.
离散δ函数的平滑技术及其在移动边界模拟中的浸入边界法的应用
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