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Chapter 3 Non-Newtonian fluid flow and heat transfer

  • Reshu Gupta
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Flow Dynamics and Heat Transfer
This chapter is in the book Flow Dynamics and Heat Transfer

Abstract

This chapter examines the analytical study of flow and heat transfer in a non-Newtonian Reiner-Rivlin fluidRivlin fluid confined between two rotating disks in the presence of a magnetic field. We applied the Von Kármán similarity transformationsimilarity transformation to the higher-order partial differential equations, resulting in a system of nonlinear ordinary differential equations (ODEs) of flow and heat transfer. The system of nonlinear ODEs related to boundary conditions is solved using the differential transform method (DTMdifferential transform method (DTM)). The energy equation takes the viscous dissipation function into account. Therefore, the Eckert numberEckert number is involved in the energy equation. We go into great detail about how the temperature and velocity profiles are affected by factors like Reynolds numberReynolds number, viscoinelastic parameter, forced parameter, Prandtl numberPrandtl number, and magnetic field. The accuracy of DTMdifferential transform method (DTM) is demonstrated by a comparison of the findings produced by DTMdifferential transform method (DTM) with numerical results. Shear stress is computed for the top and bottom disks. Temperature profiles and velocity components can be calculated numerically and analytically using Maple software.

Abstract

This chapter examines the analytical study of flow and heat transfer in a non-Newtonian Reiner-Rivlin fluidRivlin fluid confined between two rotating disks in the presence of a magnetic field. We applied the Von Kármán similarity transformationsimilarity transformation to the higher-order partial differential equations, resulting in a system of nonlinear ordinary differential equations (ODEs) of flow and heat transfer. The system of nonlinear ODEs related to boundary conditions is solved using the differential transform method (DTMdifferential transform method (DTM)). The energy equation takes the viscous dissipation function into account. Therefore, the Eckert numberEckert number is involved in the energy equation. We go into great detail about how the temperature and velocity profiles are affected by factors like Reynolds numberReynolds number, viscoinelastic parameter, forced parameter, Prandtl numberPrandtl number, and magnetic field. The accuracy of DTMdifferential transform method (DTM) is demonstrated by a comparison of the findings produced by DTMdifferential transform method (DTM) with numerical results. Shear stress is computed for the top and bottom disks. Temperature profiles and velocity components can be calculated numerically and analytically using Maple software.

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