【摘要】 应用弛豫近似法求解二元系的玻耳兹曼方程，确定了二元气体的非平衡分布函数，从而导出了热扩散过程的线性唯象关系。所得到的结果满足Ｏｎｓａｇｅｒ倒易关系。更多还原

【Abstract】 Solving the Boltzmann equation for two-component system by relaxation ap-proximation，the non-equilibrium distribution function of binary mixed gases is determined.Then，the linear phenomenological relation for the process of themal diffusion is derived．Theresults obtained satisfy Onsager’s reciprocal relation.更多还原