Abstract
This study deals with the flow of ferro-fluid in a circular tube under the influence of a magnetic field. Ferro-fluid comprises ferromagnetic particles of small size suspended in a liquid. Magnetic force sets a motion of ferro particles that causes fluid to move due to drag between fluid and the particles. Magnetic pumping will be useful in enhancing cooling of electronic devices at the expense of small amount of energy leading to the increased life of such devices. An expression is derived for velocity profile in a circular duct. Magnetic field and magnetic force distributions are presented for a colloidal solution of 50μ iron particles suspended in water. The magnetic pressure induced is found to be significant which causes the drift of the solution.
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