Investigation of simultaneous effect of a magnetic field and electric current on conductor fluid (Salt water) for making a magnetic pump

Abstract

Magnetic pumps received considerable attention because of their very low turbulence and their independence from moving components. Such pumps have a higher lifetime and lower maintenance costs compared to mechanical pumps.In the past centuries, it developed many types of fluid pumps for different fields of application. In the industry of magnesium melting, magnetic pumps have been considered. This pump, which follows the Lorentz law, leads to imposing the pressure in the melt following the right-hand rule by simultaneously applying the magnetic field and the orthogonal electric current on the electrically conductive fluid. The effective parameters in the design of the magnetic pump include the input dimensions of the channel (length and width), the size of the magnetic field, and the electrical current applied to the conductive fluid. The simultaneous presence of three physics in a magnetic pump has made it difficult for experimental and numerical investigations. In this study, the simulation of the magnetic pump was examined in a three-dimensional manner, and the simultaneous solving of three physics. Pumping and melt displacement were performed by applying a 0.26 T magnetic field in a channel with input dimensions of 100 mm × 10 mm and an electrical current of 200 A to the Salt water fluid. The speed of the fluid has been obtained through applying a Lorentz force of 0.25 m/s and a 60 Pa pump pressure.