Improvement Of Heat Transfer Performances Of Biomangnetic Flow In A Rectangular Duct Under Different Types Of Magnetic Fields
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AUTHOR(S)
Haleh Alimohamadi, Vahid DehghanNiri, Parisa Sarmadi, Mehdi Ashjaee
KEYWORDS
Keywords: Biomagnetic, Nusselt Number, MHD and FHD Analysis, Heat Transfer
ABSTRACT
ABSTRACT: In this work the impact of different types and numerous numbers of magnetic fields on a Newtonian biomagnetic fluid is introduced. This external force causes vortexes formation on the lower plate where the magnetic field is applied. Where the magnetic field is located shear stress increases sharply and the range of this parameter on the lower wall in FHD survey is 30% shorter than MHD. Another significant effect of applying magnetic force is increasing the amount of heat transfer. If one and seven dipoles locate below the duct, the value of Nusselt number increases 9.5% and 30 % due to the magnetization force only. In MHD analysis Nu is 2.5 times higher than simple case without magnetic force. In the other case, the increment of Nusselt number due to magnetization force of seven wires is just 20% and if the electrical conductivity of the blood is considered the Nusselt number can reach to 70% maximum theoretical Nusselt number which obtains by seven dipoles.
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