چكيده به لاتين
Development of microfluidic systems in recent decades has increased attention to micropumps as a main core of microfluidic system. Depend on structure, type of fluid and application, micropumps classifies to severl categories. One of the most frequent categories of micropumps is classification based on actuating method that itself forms two major sub-categories of mechanical micropumps and dynamic micropumps. In dynamic micropumps, without using moving parts and due to direct energy transfer, fluid flows. Magnetohydrodynamic micropump is one of the sub-categories of dynamic micropumps. When a conductor fluid is placed in perpendicular magnetic field and electric current, Lorentz volumetric force exerts to fluid. Magnetohydrodynamic micropumps exploit this phenomena to pump fluids.
In this thesis, after short review of literature and nature of magnetohydrodynamic phenomena, the focus is on governing electromagnetic equations of conductor fluid in electric and magnetic fields. Then the governing equations of magnetohydrodynamic micropumps are derived accordingly. In the next step, there is a brief explanation about spectral method and orthogonal functions used to solve the magnetohydrodynamic micropump equations. Finally the effects of different parameters on operation of magnetohydrodynamic micropump is considered.
Keywords:
micropump , magnetohydrodynamic , spectral method , orthogonal functions
