The steady time-averaged flows in a rotating system of immiscible fluids are studied experimentally. fill horizontal cylindrical container and brought into centrifuged state, when less dense fluid forms core, denser is distributed the form coaxial layer. Under action gravity field, core steadily displaced along radius such way that its axis oriented parallel to remains stationary laboratory fra...

It has been proved that ultrasonic energy can considerably increase the amount of oil recovery in an immiscible displacement process. Although many studies have been performed on investigating the roles of ultrasonic waves, based on the best of our knowledge, little attention has been paid to evaluate wave attenuation parameter, which is an important parameter in the determination of the energy...

Efficiency in fluid–fluid displacement is drastically reduced by viscous fingering, limiting the overall effectiveness enhanced oil recovery, membrane science, and lateral flow devices used biomedical applications. Local instabilities at interface lead to finger-like patterns when a less fluid displaces an immiscible of higher viscosity. This widely observed phenomenon multiphase inside porous ...

Quadrant geometry with permeability and wettability contrast occurs in different events, such as faults, wellbore damage, perforation zones. In these understanding the dynamics of immiscible fluid displacement is vital for enhanced oil recovery. Fluid flow studies showed that viscous fingering due to instabilities depend on mobility fluids capillary forces. Besides, porous domain heterogeneity ...

This chapter presents a review of tracking methods for the modelling of immiscible interfaces and analyses the fluid flow aspects of a new application of a twin-screw extruder (TSE) in the rheomixing process. It also simulates fundamental micro-mechanisms of the rheological behaviour of immiscible liquid alloys with piecewise linear interface construction (PLIC) volume-of-fluid (VOF) methods on...

Fluid-fluid displacement porosimetry (FFDP) is a method for determining the pore size distribution of porous medium from viscous fluid-fluid immiscible (drainage) results, using simplistic representation structure by cylindrical parallel tubes. The leads to unambiguous estimates when microstructure strongly anisotropic and reasonably akin this representation. information obtained technique howe...

The effect of drainage front morphology on gaseous diffusion through partially saturated porous media is analyzed using the lattice Boltzmann method (LBM). Flow regimes for immiscible displacement in porous media have been characterized as stable displacement, capillary fingering, and viscous fingering. The dominance of a flow regime is associated with the relative magnitudes of gravity, viscou...

We consider longwave mode of the interface instability in the system comprising of two immiscible fluid layers. The fluids fill out plane horizontal cavity which is subjected to horizontal harmonic vibration. The analysis is performed within the framework of ”high frequency of the vibration” approximation and the averaging procedure. The nonlinear equation (having the form of Newton’s second la...