Shape evolution of compound droplet in combined presence of electric field and extensional flow
Somnath Santra, Devi Prasad Panigrahi, Sayan Das, Suman Chakraborty
Abstract
We study the unique morphodynamics of a compound droplet resulting from the interplay between an imposed electric field and an extensional flow. The nonintuitive findings include the interconversion of shape-evolution patterns of the compound droplet system depending on the background flow strength, electric field strength, electrophysical properties, and here unveiled post-breakup dynamics. We also show that including an electric field causes an intricate dependence of extensional viscosity on the electrical properties of the inner droplet - a paradigm not prevalent in pure extensional flow.
Topics & Concepts
BreakupExtensional definitionElectric fieldFlow (mathematics)MechanicsBeach morphodynamicsField (mathematics)ViscosityGeologyMaterials sciencePhysicsThermodynamicsMathematicsGeomorphologySediment transportSedimentPaleontologyQuantum mechanicsTectonicsPure mathematicsElectrohydrodynamics and Fluid DynamicsInnovative Microfluidic and Catalytic Techniques InnovationFluid Dynamics and Heat Transfer