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首页> 外文会议>The Fourth International Conference on Pumps and Fans (4th ICPF) Aug 26-29, 2002 Beijing, China >EXPERIMENT STUDY OF THE INTERACTION OF THE PARTICLE AND THE WALL OF RECTANGULAR CHANNEL
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EXPERIMENT STUDY OF THE INTERACTION OF THE PARTICLE AND THE WALL OF RECTANGULAR CHANNEL

机译：颗粒与矩形通道壁相互作用的实验研究

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摘要

This paper presents particle movement behavior in turbulent two-phase flow. A Particle Image Velocimetry (PIV) was used to obtain large amount of the instantaneous velocities of the particles and flow regimes of the gas phase and the time-averaged velocities at the correspondence points. By using visualization measurement technology, the dynamic details of the flow regimes can be reproducted. The experiment has two test sections. 1. In the orientation of the mainstream flow, particles were ejected by the secondary flow and mixed with the mainstream flow in a horizontal channel. 2. Particle, which were ejected by the secondary flow in the orientation of the mainstream, collided with the wall in an oblique channel. On the basis of the experimental data, some laws of the particle diffusion and the quantitative relation about the particles collision with the wall were drawn. A model was suggested that the resilience coefficient is the function of the particle incidence angle and velocity.
机译：本文介绍了湍流两相流中的颗粒运动行为。粒子图像测速（PIV）用于获得大量的粒子瞬时速度和气相的流态以及对应点处的时间平均速度。通过使用可视化测量技术，可以重现流动状态的动态细节。该实验有两个测试部分。 1.在主流的方向上，颗粒由次级流喷出并在水平通道中与主流混合。 2.二次流以主流方向喷出的颗粒在倾斜通道中与壁碰撞。在实验数据的基础上，得出了颗粒扩散的规律以及颗粒与壁碰撞的定量关系。提出了一个模型，其回弹系数是粒子入射角和速度的函数。

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