Numerical study and investigation of the effect of magnetic field on fluid hydrodynamic behavior

Document Type : Research Article

Authors

1 Head of Department of Mechanical Engineering Research Laboratory of Renewable Energies and Electromagnetic Fluids, Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran

2 Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran

3 Department of Mechanical Engineering, Quchan Technology University, Quchan, Iran

Abstract

This research represents the dual blanket structure and liquid metal fluid hydrodynamic characteristic under magnetic field. Numerical study of the flow inside the blanket which is separated by separator structure from the shell side is done. This structure is used for both thermal insulation and pressure drop reducing mechanism. As the fluid has electrical conductivity properties, magnetohydrodynamic analysis is also done. In the current study following analyses are done: magnetic field effect, wall electrical conductivity, baffle thickness and its distance from wall in on pressure drop, as well as explaining the behavior of velocity profile under magnetic field changes. According to the result increasing the magnetic field from 0.4 T to 1 T increasing the pressure drop by 4 times the initial value. Also, reducing the electrical conduction in the separating wall from 500 S/m to 5  S/m reduces the pressure drop by 35%. Studies on the different thicknesses of the separator structure in 16 different cases with constant distance between the separator and the wall does not have a significant effect on the pressure drop but by increasing the distance between the separator and the wall the pressure drop will decrease and consequently decreasing in pumping power.

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References

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Amirkabir Journal of Mechanical Engineering
Volume 53, Issue 5
August 2021
Pages 2857-2868

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