TY - JOUR
AU - Kalinina, M. V.
AB - The paper investigates the issue of viscous fingering under conditions of supercritical fluid extraction of oil from ground high-oil raw materials. The concentration profile of the filtered solution is a solution of the reaction–diffusion equation and represents a traveling wave. The width of the zone where the main concentration difference occurs is much smaller than the height of the apparatus. Using a small parameter, the boundary layer expansion in the vicinity of the concentration front is constructed and the hydrodynamic stability of the surface separating the depletion zone and the saturated zone is investigated. Within the framework of the normal mode method, a dispersion relation is obtained. Limitations on the hydrodynamic parameters under which the front remains stable to small disturbances are determined.
TI - Viscous Fingering in Supercritical Fluid Extraction
JF - Theoretical Foundations of Chemical Engineering
DO - 10.1134/s0040579525600317
DA - 2024-08-01
UR - https://www.deepdyve.com/lp/springer-journals/viscous-fingering-in-supercritical-fluid-extraction-rMrp1OL90k
SP - 1193
EP - 1205
VL - 58
IS - 4
DP - DeepDyve
ER -