174 citations · 407 across the 13 of their papers we have counts for
13 papers
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…
Homological Characterizations of Spiral Defect Chaos in Rayleigh-Benard Convection
Kapilanjan Krishan, Marcio Gameiro, Konstantin Mischaikow +1
We use a quantitative topological characterization of complex dynamics to measure geometric structures. This approach is used to analyze the weakly turbulent state of spiral defect…
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…
Network structure of chaotic patterns
Kapilanjan Krishan
We reduce complex stripped patterns to a basic topological network of edges and vertices to define defects and measure their influence on the pattern. We present statistics on the…