Title :
Numerical Modelling and Experimental Study of an AC Magnetohydrodynamic (MHD) Micropump
Author :
Affanni, Antonio ; Chiorboli, Giovanni
Author_Institution :
Dipt. di Ingegneria dell´´Informazione, Parma Univ.
Abstract :
This paper describes the working principle and provides FEM simulations and some experimental results of an AC magneto-hydrodynamic micropump. The pump, without moving parts, operates at low-frequency, medium-high AC magnetic fields without gas bubble formation and produces a continuous flow. Therefore, it is in principle compatible with biological samples in a miniaturized total analysis system (muTAS). A preliminary prototype was realized with low cost material in order to verify the results provided by finite element simulation. Flow velocities up to 22 mm/s at an applied current density at the electrodes of 8 kA/m2 and a magnetic field of 70 mT have been demonstrated for a channel section of 6.5 mm2 in very good agreement with simulations and theory
Keywords :
current density; finite element analysis; flow; magnetic fields; magnetohydrodynamics; micropumps; 70 mT; AC magnetic fields; AC magnetohydrodynamic micropump; FEM simulations; applied current density; continuous flow; finite element simulation; flow velocities; miniaturized total analysis system; Biological materials; Biological system modeling; Costs; Magnetic analysis; Magnetic fields; Magnetic materials; Magnetohydrodynamics; Micropumps; Numerical models; Virtual prototyping; Lorentz force; bubble generation; magnetohydrodynamic; micro total analysis system; micropump;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
Conference_Location :
Sorrento
Print_ISBN :
0-7803-9359-7
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2006.328572
