174 citations · 407 across the 13 of their papers we have counts for
8 papers · 1 filter
On the existence of a simple yield stress fluid behavior
Guillaume Ovarlez, Sylvie Cohen-Addad, Kapil Krishan +2
Materials such as foams, concentrated emulsions, dense suspensions or colloidal gels, are yield stress fluids. Their steady flow behavior, characterized by standard rheometric tech…
Investigation of shear banding in three-dimensional foams
Guillaume Ovarlez, Kapil Krishan, Sylvie Cohen-Addad
We study the steady flow properties of different three-dimensional aqueous foams in a wide gap Couette geometry. From local velocity measurements through Magnetic Resonance Imaging…
Comparison of low amplitude oscillatory shear in experimental and computational studies of model foams
Micah Lundberg, Kapilanjan Krishan, Ning Xu +2
A fundamental difference between fluids and solids is their response to applied shear. Solids possess static shear moduli, while fluids do not. Complex fluids such as foams display…
Viscoelastic shear banding in foam
Kapilanjan Krishan, Michael Dennin
Shear banding is an important feature of flow in complex fluids. Essentially, shear bands refer to the coexistence of flowing and non-flowing regions in driven material. Understand…
Statistics of microscopic yielding in sheared aqueous foams
Yuhong Wang, Kapilanjan Krishan, Michael Dennin
We detail the statistical distribution of bubble rearrangements in a sheared two-dimensional foam. Such rearrangements, known as T1 events, are vital to mechanisms resulting in flo…
Bubble kinematics in a sheared foam
Yuhong Wang, Kapilanjan Krishan, Michael Dennin
We characterize the kinematics of bubbles in a sheared two-dimensional foam using statistical measures. We consider the distributions of both bubble velocities and displacements. T…