利用蒙特卡罗方法,采用计算机模拟研究粒径呈连续分布的一维颗粒气体在均匀加热机制下的速度分布特性。研究表明颗粒气体的速度分布不再遵从高斯分布。系统的颗粒速度分布偏离高斯分布的程度及各个组分之间颗粒速度分布的差异程度受到颗粒的非弹性恢复系数及粒子粒径分布宽度的影响。%We study by Monte Carlo simulation the property of velocity distributions of granular gases with a power-law size distribution which were driven by uniform heating.We investigate the behavior of the velocity distributions of particles as a function of the fractal dimension D and the restitution coefficient η.It is found that the particle velocity distribution is deviated from Gaussian.And the values of exponents of velocity distributions are depended on D and η.
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