From point of view of physics, especially of mechanics, we briefly introduce fractional
operators (with emphasis on fractional calculus and fractional differential equations) used for …

New fracturing techniques, such as hybrid fracturing (Sharma et al.), reverse-hybrid
fracturing (Liu et al.), and channel (HiWAY) fracturing (Gillard et al.), have been deployed …

In this study, two oriented flaky fillers in plasticized polyvinyl chloride (P‐PVC) matrix were
respectively compared on some rheological behaviors such as dynamic rheological …

The role of nonlinear rheology of polymeric fluids in finger formation and the ensuing
morphology of the patterns in miscible flow displacement is examined experimentally. The …

For the Saffman–Taylor instability, the inertia of the fluid may become important for high
finger speeds. We investigate the effects of inertia on the width of the viscous fingers …

We consider experimentally the viscous fingering problem wherein a silicone oil displaces a
Carbopol gel in a rectangular Hele-Shaw cell. Unlike traditional cases, the displacing fluid …

Recent theoretical and experimental work suggests a frictionless-frictional transition with
increasing inter-particle pressure explains the extreme solid-like response of discontinuous …

Marangoni spreading on thin films is widely observed in nature and applied in industry. It
has serious implications for airway drug delivery, especially in surfactant displacement …

Yield stress fluids (YSF) exhibit strongly non-linear rheological characteristics. As a
consequence, they develop original flow features (as compared to simple fluids) under …

We experimentally studied the viscous fingering instability considering a Newtonian oil
displacing viscoelastic shear-thinning liquids and vice versa. The non-Newtonian liquids are …