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- W4386324271 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> The porous microenvironment of soil offers various environmental functions which are governed by physical and reactive processes. Understanding reactive transport processes in porous media is essential for many natural systems (soils, aquifers, aquatic sediments or subsurface reservoirs) or technological processes (water treatment, or ceramic and fuel cell technologies). In particular, in the vadose zone of the terrestrial subsurface the spatially and temporally varying saturation of the aqueous and the gas phase leads to systems that involve complex flow and transport processes as well as reactive transformations of chemical compounds in the porous material. To describe these interacting processes and their dynamics at the pore scale requires a well-suited modelling framework accounting for the proper description of all relevant processes at a high spatial resolution. Here we present P3D-BRNS as a new open-source modelling toolbox harnessing the core libraries of OpenFOAM and coupled externally to the Biogeochemical Reaction Network Simulator (BRNS). The native OpenFOAM Volume of Fluid solver is extended to have an improved representation of the fluid-fluid interface. The solvers are further developed to couple the reaction module which can be tailored for a specific reactive transport simulation. P3D-RBNS is benchmarked against three different flow and reactive transport processes; 1) fluid-fluid configuration in a capillary corner, 2) mass transfer across the fluid-fluid interface and 3) microbial growth with a high degree of accuracy. Our model allows for simulation of the spatio-temporal distribution of all bio-chemical species in the porous structure (obtained from µ-CT images), for conditions that are commonly found in the laboratory and environmental systems. With our coupled computational model, we provide a reliable and efficient tool for simulating multiphase, reactive transport in porous media." @default.
- W4386324271 created "2023-09-01" @default.
- W4386324271 creator A5077507829 @default.
- W4386324271 date "2023-08-31" @default.
- W4386324271 modified "2023-10-16" @default.
- W4386324271 title "Reply on RC2" @default.
- W4386324271 doi "https://doi.org/10.5194/gmd-2022-86-ac2" @default.
- W4386324271 hasPublicationYear "2023" @default.
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