引用本文: 郑乐梅, 王彦入, 沈家鑫, 尹招琴, 包福兵. 柱状颗粒在线性剪切流场中运动的数值模拟研究1)[J]. 力学与实践, 2021, 43(5): 734-739.
ZHENG Lemei, WANG Yanru, SHEN Jiaxin, YIN Zhaoqin, BAO Fubing. NUMERICAL SIMULATION RESEARCH ON THE MOVEMENT OF A CYLINDRICAL PARTICLE IN A LINEAR SHEAR FLOW1)[J]. MECHANICS IN ENGINEERING, 2021, 43(5): 734-739.
 Citation: ZHENG Lemei, WANG Yanru, SHEN Jiaxin, YIN Zhaoqin, BAO Fubing. NUMERICAL SIMULATION RESEARCH ON THE MOVEMENT OF A CYLINDRICAL PARTICLE IN A LINEAR SHEAR FLOW1)[J]. MECHANICS IN ENGINEERING, 2021, 43(5): 734-739.

## NUMERICAL SIMULATION RESEARCH ON THE MOVEMENT OF A CYLINDRICAL PARTICLE IN A LINEAR SHEAR FLOW1)

• 摘要: 柱状颗粒是自然界和工业过程中一种普遍的颗粒形状,它在流场中的运动与球状颗粒有显著区别。论文基于直接力浸入边界法数值模拟了柱状颗粒在线性剪切流中的运动;分析了柱状颗粒周围流场参数分布,获得了作用在颗粒上的力矩变化,明确了由流体曳力和颗粒惯性力相互作用导致颗粒运动的速度和角速度的变化规律,同时考虑了颗粒雷诺数对颗粒运动的影响。

Abstract: Cylindrical particles are common in nature and industrial process, and its movement in flow field is significantly different from that of spherical particles. In this paper, the direct forcing immersed boundary method was used to numerically simulate the motion of cylindrical particles in a linear shear flow. The flow field around the cylindrical particle is investigated in detail, and the moment acting on the particle is calculated. It reveals the rule of the moving particle caused by the interaction of the fluid drag force and the particle inertia force. Furthermore, the influence of the Reynolds number on the particle motion was also investigated.

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