We experimentally study miscible displacement flows of a light Newtonian fluid by a heavy
viscoplastic fluid, in a vertical pipe with a large aspect ratio (⁠ δ− 1≫ 1⁠). We use camera …

The numerical study examines the dynamics of viscous fingering in a miscible flow
displacement involving an exothermic reaction between displacing and displaced fluids …

We investigate viscous fingering (VF) during the miscible displacement in a cylindrical
packed column using linear stability analysis and numerical solutions. Linear stability theory …

The temporal and spatiotemporal linear stability analyses of a displaced Oldroyd-B fluid with
the mean flow in a horizontally aligned, square, Hele–Shaw cell are reported to identify the …

This study experimentally examined the immiscible viscoelastic Saffman-Taylor instability
(STI) in porous media. The viscoelastic displacing fluids are solutions of glycerin, water, and …

A fluid dynamics model has been developed to describe flow behavior in a lab-scale
chromatographic system dedicated for protein processing. The case study included a …

We experimentally study the effects of normal stress differences in the immiscible radial
viscous fingering instability in a Hele–Shaw cell. Dilute low molecular weight poly (ethylene …

Saffman–Taylor instability exhibits a stepwise unstable morphology from a stable interface to
viscous fingering, eventually leading to tip splitting. The nonlinear dynamics of the …

We experimentally study buoyant immiscible displacement flows in an axially rotating pipe,
with varying flow parameters, such as the mean imposed flow velocity, density difference …

The displacement of a shear-thinning fluid by a denser and less viscous Newtonian fluid in a
vertical duct is investigated using experiments and numerical simulations. We study how …