MHD Flow of Power-Law Fluids in Locally-Constricted Channels

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概要

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• In the present study, the effect of a transverse magnetic field is investigated on the flow separation phenomenon at the lee of a single, two-dimensional symmetric constriction assuming that the fluid of interest is of the power-law type. For steady, two-dimensional, and incompressible flow, the equations of motion will be solved using the finite volume formulation based on a staggered grid. Numerical results obtained for the velocity and pressure fields suggest that flow separation occurring downstream the constriction can be controlled by manipulating the degree of the shear-thinning behavior of the fluid and/or by applying an external magnetic field. That is, the size of the separation bubble formed in flow through constrictions is predicted to decrease by an increase in the power-law exponent and/or the strength of the externally imposed magnetic field. The wall shear stress is also predicted to increase by an increase in the strength of the magnetic field.

• 一般社団法人　日本レオロジー学会の論文
• 2009-09-15

著者

• Sadeghy Kayvan

  Department Of Mechanical Engineering College Of Engineering University Of Tehran

• ESMAEILI Mostafa

  Department of Mechanical engineering, College of Engineering, University of Tehran

• Esmaeili Mostafa

  Department Of Mechanical Engineering College Of Engineering University Of Tehran

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• MHD Flow of Power-Law Fluids in Locally-Constricted Channels
• The Rise of Second Harmonics in Forced Oscillation of Gas Bubbles in Thixotropic Fluids

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