31 citations · 66 across the 10 of their papers we have counts for
6 papers · 1 filter
Drag and Yielding of Rotating Bodies in Yield-Stress Fluids
Farshad Nazari, Akash Mittal, Kourosh Shoele +1
We investigate the settling dynamics of rotating objects in a yield stress fluid by combining controlled experiments with numerical simulations. Experiments were conducted using cy…
Helical Locomotion in Yield Stress Fluids
Farshad Nazari Kourosh Shoele, Hadi Mohammadigoushki
We report three stages for locomotion of a helical swimmer in yield stress fluids. In the first stage, the swimmer must overcome material's yield strain to generate rotational moti…
A Study of Non-linear Flows and Shear Banding in Wormlike Micelles Under Varying Elasticity, Flow Curvature, and Surfactant Chemistry
Alfredo Scigliani, Hadi Mohammadigoushki
We report the flow dynamics of two shear-banding wormlike micellar solutions with distinct surfactant chemistries in a Taylor-Couette (TC) setup following a startup shear. The solu…
Cavitation Rheology of Model Yield Stress Fluids Based on Carbopol
Hadi Mohammadigoushki, Kourosh Shoele
Measuring surface tension of yield stress fluids has remained a critical challenge due to limitations of the traditional tensiometry techniques. Here, we overcome those limits and…
Kinetics of Shear Banding Flow Formation in Linear and Branched Wormlike Micelles
Peter Rassolov, Alfredo Scigliani, Hadi Mohammadigoushki
We investigate the flow evolution of a linear and a branched wormlike micellar solution with matched rheology in a Taylor-Couette (TC) cell using a combination of particle-tracking…
Squirmer locomotion in a yield stress fluid
Patrick S. Eastham, Hadi Mohammadigoushki, Kourosh Shoele
An axisymmetric squirmer in a Bingham viscoplastic fluid is studied numerically to determine the effect of a yield stress environment on locomotion. The nonlinearity of the governi…