Analyzing Impacts of Interfacial Instabilities on the Sweeping Power of Newtonian Fluids to Immiscibly Displace Power-Law Materials

Injection of Newtonian fluids to displace pseudoplastic and dilatant fluids, governed by the power-law viscosity relationship, is common in many industrial processes. In these applications, changing displaced fluid through velocity alteration can regulate interfacial instabilities, displacement efficiency, thickness static wall layer, injected fluid’s tendency move toward particular parts channel. The dynamic behavior fluid–fluid interface case immiscibility highly complicated complex. this study, a code was developed that utilizes multi-component model lattice Boltzmann method decrease computational cost accurately problems. Accordingly, 2D inclined channel, filled with stagnant incompressible initial section followed material, modeled for numerous scenarios. conclusion, results indicate reducing index instabilities leading deformation layers at top bottom However, it does not guarantee reduction layers, which crucial improve efficiency. impacts compatibility factor variations on filling pattern finger structure were intensively evaluated.