Otto-von-Guericke-University, Institute of Experimental Physics, Universitätsplatz 2, D-39106 Magdeburg, Germany.
Universiteit Twente, Physics of Fluids and Max Planck Center for Complex Fluid Dynamics, P.O. Box 217, 7500 AE Enschede, The Netherlands.
Phys Rev E. 2017 Jun;95(6-1):062904. doi: 10.1103/PhysRevE.95.062904. Epub 2017 Jun 21.
The experimental realization and investigation of granular gases usually require an initial or permanent excitation of ensembles of particles, either mechanically or electromagnetically. One typical method is the energy supply by a vibrating plate or container wall. We study the efficiency of such an excitation of cylindrical particles by a sinusoidally oscillating wall and characterize the distribution of kinetic energies of excited particles over their degrees of freedom. The influences of excitation frequency and amplitude are analyzed.
颗粒气体的实验实现和研究通常需要对颗粒集合体进行初始或永久的激励，无论是机械激励还是电磁激励。一种典型的方法是通过振动板或容器壁来提供能量。我们研究了通过正弦壁对圆柱形颗粒进行这种激励的效率，并对激活动力学能量在自由度上的分布进行了特征描述。分析了激励频率和幅度的影响。
