Boiling two-phase flows of magnetic fluid in a non-uniform magnetic field

Abstract

The effects of a magnetic field on the characteristics of boiling two-phase pipe flow of a temperature-sensitive magnetic fluid are clarified in detail both theoretically and experimentally. Firstly, the governing equations of boiling two-phase flow of a magnetic fluid are presented and numerically solved. Secondly, the aspect of boiling two-phase flow is visualized with ultrasonic wave echo in the region of non-uniform magnetic field and various distributions of two-phase flow characteristics are obtained. Finally, the effect of a magnetic field on the stability of boiling two-phase pipe flow of a magnetic fluid under a non-uniform magnetic field is investigated both theoretically and experimentally. These fundamental studies show that the precise control and stabilization of boiling two-phase flow of a magnetic fluid are possible by using the magnetic force of the fluid effectively.