本文运用分子动力学模拟方法,模拟了不同温度条件下饱和气体和液体氩分子的运动.对气液状态下分子运动在速度空间的演化相图进行了比较.根据分形理论,对实际分子的分数布朗运动特性进行了讨论.应用本文提出的约化规模法,获得了不同温度条件下分子分数布朗运动的Hurst指数和轨迹分维数.饱和液相分子运动的Hurst指数并不随温度单调上升,存在一个极小值.
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