5 papers
Catastrophic thermal destabilization of two-dimensional close-packed emulsions due to synchronized coalescence initiation
Samira Abedi, Chau-Chyun Chen, Siva A. Vanapalli
The mechanisms for phase separation in highly concentrated emulsions when subjected to a thermal phase transition remain to be elucidated. Here, we create a hexagonally close-packe…
Collective Nucleation Dynamics in Two-dimensional Emulsions with Hexagonal Packing
Samira Abedi, Chau-Chyun Chen, Siva A. Vanapalli
We report a new mechanism for nucleation in a monolayer of hexagonally packed monodisperse droplet arrays. Upon cooling, we observe solidified droplets to nucleate their supercoole…
Holographic shear rheology of viscoelastic fluids
Siddhartha Gupta, Siva A. Vanapalli
In this study, we report the use of digital holography microscopy (DHM) for 3D-resolved flow kinematics and shear rheometry of viscoelastic polymeric fluids. We computationally rec…
Hydrodynamic mobility of confined polymeric particles, vesicles and cancer cells in a square microchannel
Shamim M. Ahmmed, Naureen S. Suteria, Valeria Garbin +1
The transport of deformable objects including polymer particles, vesicles and cells, has been a subject of interest for several decades where the majority of experimental and theor…
Origins of periodic and chaotic dynamics in microfluidic loop devices
Jeevan Maddala, Siva A. Vanapalli, Raghunathan Rengaswamy
Droplets moving in a microfluidic loop device exhibit both periodic and chaotic behaviors based on the inlet droplet spacing. We propose that the periodic behavior is an outcome of…