Constitutive Relations of Solute Transport and Transformation at the Darcy Scale

该项目是长期研究工作的一部分，旨在促进对达西尺度下控制污染物，基质和电子受体的运输和化学命运的因素的更坚定的理解，达西尺度实际上是模拟多孔介质中溶质运输和化学命运的最小尺度。 在达西尺度下，由孔隙、具有生物膜的固体基质等组成的复杂介质被以本构关系和参数为特征的均质化介质所取代。 该项目的方法将是在孔隙尺度上模拟流动、运输和化学转化，然后按比例放大，以推导本构方程和参数。 因此，本构方程和参数将获得的基本物理化学原理以及介质的非均匀性是一致的。 基本目标是推导出达西尺度下定义和可测量的量之间的关系。

This project is part of a longer-term research effort to promote a firmer understanding of the factors that control the transport and chemical fate of pollutants, substrates, and electron acceptors at the Darcy scale, in practice the smallest scale for modeling the transport and chemical fate of solutes in porous media. At the Darcy scale, a complex medium consisting of pores, a solid matrix with biofilm, etc. is replaced by a homogenized medium characterized by constitutive relations and parameters. The methodology of the project will be to model flow, transport, and chemical transformations at the pore scale and then to scale up in order to derive constitutive equations and parameters. The constitutive equations and parameters to be obtained will thus be consistent with the fundamental physico-chemical principles as well as the heterogeneity of the medium. The fundamental objective is to derive relations among quantities defined and measurable at the Darcy scale.