Open AccessOn a threshold of desorption during the pumping of a nanofluid through porous medium
Author(s) -
V. A. Demin,
Boris S. Maryshev,
A. I. Menshikov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1809/1/012003
Subject(s) - nanofluid , porous medium , desorption , mechanics , materials science , phenomenological model , thermodynamics , porosity , saturation (graph theory) , nanoparticle , physics , adsorption , chemistry , mathematics , nanotechnology , condensed matter physics , composite material , combinatorics
The results of direct numerical simulation are intended to describe the saturation process of a nanofluid through artificial porous medium. The calculations were fulfilled using the hypothesis, which presumed the adsorptive nature of nanoparticles adhesion to the solid boundaries of pores. Mathematical statement of the problem was based on the modified MIM-model and Darcy – Boussinesq equations. The dependence of the desorption intensity on the value of filtration velocity was taken into account in the course of theoretical investigation. It was shown that this factor for concentration redistribution of the immobile impurity led to the steepening of the wave front as a function of time. Phenomenological realization of novel physical assumptions made the results of numerical modeling closer to the experimental data.