Abstract
This article aims to numerically investigate the flow pattern for Newtonian and power law non-Newtonian fluid in a semi-half circular channel with corrugated walls under the influence of a magnetic field. The results indicate that, presence of a magnetic field affects the flow field in several aspects, especially in the vortex creation and dissipation. In addition, the analysis is carried out for different Reynolds numbers to ascertain the influence of magnetic field on each flow regime. Eventually, the analysis is carried out for a range of power indices including pseudo plastic (shear-thinning) to dilatants (shear-thickening) fluids. The results show that by increasing the power-index, the vortices begin to form and grow gradually so that in the shear-thickening fluid an extra vortex is formed and created nearby the corrugated part of the channel.
Highlights
Conducting numerical research on the fluid flow in complex geometries has been always essential for the designHow to cite this paper: Tonekaboni, S.A.M., Gharahi, H.R., Motevaselian, M.H., Karimian, S.F. and Jahromi, S. (2014) On the Study of Magneto-Hydrodynamic Non-Newtonian Fluid Flow throughout Curvilinear Channel with Corrugated Walls
Enhancement of heat transfer in these heat exchangers is due to their corrugated geometry which is inclined to increase the rate of heat transfer by dint of producing vortices created by fluid flowing over oscillating wall
The change in the flow pattern under the influence of the magnetic field is highly dependent on the direction of the fluid velocity and magnetic forces exerted on the flow field
Summary
Conducting numerical research on the fluid flow in complex geometries has been always essential for the designHow to cite this paper: Tonekaboni, S.A.M., Gharahi, H.R., Motevaselian, M.H., Karimian, S.F. and Jahromi, S. (2014) On the Study of Magneto-Hydrodynamic Non-Newtonian Fluid Flow throughout Curvilinear Channel with Corrugated Walls. One sort of these mechanisms is compact heat exchangers. Since these systems have found to be very useful in a variety of usage in food, pharmaceutical industries and chemical processing [1], many experimental and numerical researches have been conducted to fathom out more about different influential parameters on these systems. Enhancement of heat transfer in these heat exchangers is due to their corrugated geometry which is inclined to increase the rate of heat transfer by dint of producing vortices created by fluid flowing over oscillating wall. This improvement in heat transfer contributes to more efficient energy systems and lower costs in various industries
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