用概率型模型测量格子气的粘性系数
MEASUREMENTS OF VISCOSITY OF A LATTICE GAS USING A PROBABILITY MODEL
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摘要: 在Ｂｏｌｔｚｍａｎｎ假设下，提出一种概率型格子气模型，并通过对平面Ｐｏｓｅｕｉｌｌｅ流的模拟，用数值方式“测量”了格子气体的粘性系数。数值结果同理论上得到的解析粘性系数进行了定量比较，得到了非常符合的结果。Abstract: A probability type lattice gas model is proposed,using Boltzmann approxi-mation. Kinamatic shear viscosity of the lattice gas is mesured by numerical simulation ofPoiseuille flow.Quantitative comparison of the numerical results with theoritical ones areshown, they are in good agreement.
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