采用涡方法对静止圆柱绕流、简谐振动圆柱、静止NACA0012翼型绕流和运动扑翼的非定常流场进行了数值模拟和数值验证,对比验证结果较好.控制方程采用二维不可压缩N-S方程,根据算子分裂法,对流和扩散分别采用不同的时间步长.涡方法基于Lagrange坐标系的特点使其方便模拟运动物体的非定常流场.本文的工作为今后的翼型动态失速、运动翼型的塔影干涉效应、运动翼型的气动噪声研究等打下基础.
参考文献
| [1] | S. P. Singh;S. Mittal .Vortex-induced oscillations at low Reynolds numbers: Hysteresis and vortex-shedding modes[J].Journal of Fluids and Structures,2005(8):1085-1104. |
| [2] | M. H. Akbari;S. J. Price .Simulation of dynamic stall for a NACA 0012 airfoil using a vortex method[J].Journal of Fluids and Structures,2003(6):855-874. |
| [3] | Huberson S;Rivoalen E;Voutsinas S .Vortex particle methods in aeroacoustic calculations[J].Journal of Computational Physics,2008(21):9216-9240. |
| [4] | B. N. Rajani;A. Kandasamy;Sekhar Majumdar .Numerical simulation of laminar flow past a circular cylinder[J].Applied mathematical modelling,2009(3):1228-1247. |
| [5] | Dutsch H.;Becker S.;Lienhart H.;Durst F. .Low-Reynolds-number flow around an oscillating circular cylinder at low Keulegan-Carpenter numbers[J].Journal of Fluid Mechanics,1998(0):249-271. |
| [6] | Miller LA;Peskin CS .When vortices stick: an aerodynamic transition in tiny insect flight[J].The Journal of Experimental Biology,2004(17):3073-3088. |
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