title: Miscible ferrofluid patterns in a radial magnetic field.
abstract: Pattern formation in a miscible ferrofluid system is experimentally investigated. The experiment is performed by immersing a thin ferrofluid droplet in a cylindrical container, overfilling it with a nonmagnetic miscible fluid, and applying an in-plane radial magnetic field. Visually striking patterns are obtained whose morphologies change from circular at zero field to complex starburst-like structures at finite field. The evolution of miscible ferrofluid droplets of various initial diameters subjected to different magnetic-field strengths is considered. Proper rescaling of the experimental data indicates that the time evolution of the droplets' area increments obeys a universal 4/3 power-law behavior at long times.
authors: Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan 30010, Republic of China. chingyao@mail.nctu.edu.tw
authors: Ching-Yao
authors: CY
authors: Chen
authors: Y-S
authors: YS
authors: Yang
authors: José A
authors: JA
authors: Miranda