Analytical solution of MHD micropump with circular channel

Article type: Research Article

Authors: Moghaddam, Saied^a

Affiliations: [a] Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran. E-mail: saiedmoghaddam@iust.ac.ir

Abstract: An analytical solution is found for equations of AC and DC-operated MHD micropump with circular channel. The kind of fluid is Newtonian and the flow generated by the Lorentz force is assumed to be laminar, unidirectional, and one-dimensional. The effect of Hartman number and radius is studied on the velocity and volumetric flow rate profiles and a relation for optimum Hartman number and radius which causing maximum volumetric flow rate is found. Finally DC-operated MHD micropump is compared with AC-operated.

Keywords: MHD micropump, circular channel, hartmann number, lorentz force, analytical solution

DOI: 10.3233/JAE-2012-1594

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 40, no. 4, pp. 309-322 , 2012