01440nam a2200169 a 4500 20260901030412.0 250101s2019 xx o 000 0 eng d Alexander Litvinenko Solution of the 3D density-driven groundwater flow problem with uncertain porosity and permeability arXiv 2019 text online resource As groundwater is an essential nutrition and irrigation resource, its pollution may lead to catastrophic consequences. Therefore, accurate modeling of the pollution of the soil and groundwater aquifer is highly important. As a model, we consider a density-driven groundwater flow problem with uncertain porosity and permeability. This problem may arise in geothermal reservoir simulation, natural saline-disposal basins, modeling of contaminant plumes, and subsurface flow. This strongly nonlinear time-dependent problem describes the convection of the two-phase flow. This liquid streams under the gravity force, building so-called "fingers". The accurate numerical solution requires fine spatial resolution with an unstructured mesh and, therefore, high computational resources. Consequently, we run the parallelized simulation toolbox \myug with the geometric multigrid solver on Shaheen II superc Open access — freely available to read. https://arxiv.org/pdf/1906.01632v2 Read the full paper (PDF) ERES 709 709 0 0 0 3 GEN MAIN MAIN SCICOMP 2026-09-01 0 YGE000970 2026-09-01 03:04:12 https://arxiv.org/pdf/1906.01632v2 2026-09-01 PAPER