Aerodynamic bag breakup of a polymeric droplet
Navin Kumar Chandra, Shubham Sharma, Saptarshi Basu, Aloke Kumar
Abstract
When liquid droplets encounter high-speed gas flows, they fragment through various modes, with bag-mediated breakup mode observed at lower Weber numbers. This study shows that even minute concentrations of long-chain polymer molecules in a Newtonian solvent can drastically modify its fragmentation characteristics. By investigating the role of liquid elasticity, we uncover how polymeric additives control the fragmentation dynamics of a droplet specifically in the bag breakup regime.
Topics & Concepts
AerodynamicsBreakupMaterials scienceAerospace engineeringMechanicsEngineeringPhysicsFluid Dynamics and Heat TransferParticle Dynamics in Fluid FlowsElectrohydrodynamics and Fluid Dynamics