2 papers
math.AP2022
On the growth rates for a three-layer flow in porous media
Gelu I. Pasa
We study the displacement of three immiscible Stokes fluids with constant viscosities in a porous medium. The middle-layer fluid is contained in a bounded region. We give an analys…
physics.flu-dyn2019
On the displacement of two immiscible Oldroyd-B fluids in a Hele-Shaw cell
Gelu I. Paşa
The Saffman-Taylor instability occurs when { a} Stokes fluid is displaced by a less viscous one { in} a Hele-Shaw cell. { This model is useful to study the secondary oil recovery f…