Journal of Fluid Mechanics, Journal Year: 2025, Volume and Issue: 1010

Published: May 9, 2025

Achieving precise control over the dynamic manipulation of a drop using an external magnetic field may face challenges due to intricate relationship between induced magnetisation and inherent properties drop. Here, we put forward fundamental theory that elucidates morphology behaviour ferrofluid droplet immersed in different, viscous fluid when subjected uniform field. Unlike previous studies, introduce asymptotic model investigates evolution by examining local as function itself. This leads additional contribution interfacial energy, resulting excess normal traction at interface. Our analytical findings highlight significant impact saturation initial susceptibility on characteristics, which are further explored through comprehensive numerical simulations address deformations beyond scope theory. Supported benchmark experimental results, our study suggests higher fields and/or greater can enhance elongation accelerate its settling process. We develop regime map illustrating various events based properties, could have implications for design micro-encapsulations across wide range applications, including thermal processing, chemical synthesis, analysis medical diagnostics.

Language: Английский