本文运用粒子图像速度场测量仪(PIV)对水平槽道气固两相湍流边界层进行研究.实验雷诺数为Rer=444,选用两种粒径分别为60μm和110μm的聚乙烯颗粒作为固相,质量载荷控制在1×10-3.实验结果表明即便在较低载荷下,固相颗粒的存在仍然能比较明显地改变边界层的湍流属性以及拟序结构,而且可以发现在近壁面颗粒会削弱流向的湍流强度以及雷诺剪切应力.
参考文献
| [1] | Smith C R;Walker J D A;Haidari A H et al.On the Dynamics of Near-Wall Turbulence[J].Philosophical Transactions of the Royal Society of London,1991,A336:131-175. |
| [2] | Christensen KT.;Adrian RJ. .Statistical evidence of hairpin vortex packets in wall turbulence[J].Journal of Fluid Mechanics,2001(0):433-443. |
| [3] | Rashidi M;Hetsroni G;Banerjee S .Particle-Turbulence Interaction in a Boundary Layer[J].International Journal of Multiphase Flow,1990,16(06):935-949. |
| [4] | Kaftori D;Hetsroni G;Banerjee S .Particle Behavior in the Turbulent Boundary Layer Ⅰ:Motion,Deposition,and Entrainment[J].Physics of Fluids,1995,7(05):1095-1106. |
| [5] | Kaftori D;Hetsroni G;Banerjee S .Particle Behavior in the Turbulent Boundary Layer Ⅱ:velocity and Distribution Profiles[J].Physics of Fluids,1995,7(05):1107-1211. |
| [6] | D. Kaftori;G. Hetsroni;S. Banerjee .The effect of particles on wall turbulence[J].International Journal of Multiphase Flow,1998(3):359-386. |
| [7] | Kiger K T;Pan C .Suspension and Turbulence Modification Effects of Solid Particulates on a Horizontal Turbulent Channel Flow[J].Journal of Turbulence,2002,3(19):1-21. |
| [8] | Yoshimichi H;Toru M;Mitsuru T et al.Turbulence Modification by the Clusters of Settling Particles in Turbulent Water Flow in a Horizontal Duct[J].Power Technology,2002,125:158-167. |
| [9] | Yi Wu,Hangfeng Wang,Zhaohui Liu,Jing Li,Liqi Zhang,Chuguang Zheng.Experimental investigation on turbulence modification in a horizontal channel flow at relatively low mass loading[J].力学学报（英文版）,2006(02):99-108. |
| [10] | Moser R D;Kim J;Mansour N N .Direct Number Simulation of Turbulent Channel Flow up to Rer=590[J].Physics of Fluids,1999,11:943-945. |
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