论文标题
遵守Athermal介质系统的OnSager-Mymortry:多孔介质中的两相流
Onsager-Symmetry Obeyed in Athermal Mesoscopic Systems: Two-Phase Flow in Porous Media
论文作者
论文摘要
我们使用2D网络模型计算多孔介质中不可压缩的两相流的流体流动时间相关函数。给定正确选择的代表性基本体积,流速分布是高斯,并且发现流的时间相关函数的积分被发现会收敛到有限值。综合的互相关成为对称性,遵守Onsager的相互关系。这些发现支持多孔培养基中两相流量的非平衡热力学描述的建议。
We compute the fluid flow time-correlation functions of incompressible, immiscible two-phase flow in porous media using a 2D network model. Given a properly chosen representative elementary volume, the flow rate distributions are Gaussian and the integrals of time correlation functions of the flows are found to converge to a finite value. The integrated cross-correlations become symmetric, obeying Onsager's reciprocal relations. These findings support the proposal of a non-equilibrium thermodynamic description for two-phase flow in porous media.