Research Information System
2nd International Conference on Forthcoming Networks and Sustainability in the IoT Era (FoNeS-IoT), ELECTR NETWORK, 8 - 09 January 2022, vol.129, pp.116-124
The seepage fouling in the rock and soil porous media is essentially the result of the coupling effect of seepage and particles. Developed a lattice Boltzmann method suitable for coupled simulation of rock and soil seepage-particles-immersion motion boundary-DEM numerical calculation platform, and carried out a pore-scale simulation of the seepage and blocking process of rock and soil porous media, and analyzed the particle distribution of the porous media framework. Framework particle size, porosity, framework particle orientation and water pressure and other factors affect its permeability and fouling characteristics. The results show that: the spatial distribution of the framework particles in the porous media is different, and the permeability and fouling characteristics are also different; the smaller the particle size or porosity of the framework particles in the porous media, the more retained particles after fouling, and the more serious the fouling. The particle orientation has a certain influence on the fouling characteristics. The fouling is the most serious when the framework particles are strip-shaped and their long axis is perpendicular to the flow direction with the increase of water pressure, the distribution of the retained particles in the porous medium after fouling becomes more serious.