Thermo-hydraulic and entropy generation analysis for non-Newtonian fluid flow through sinusoidal wavy wall channel

Chemical entropy generation and magnetohydrodynamic effects on the unsteady heat and fluid flow through a porous medium have been numerically investigated. The entropy generation due to the use of a magnetic field and porous medium effects on heat transfer, fluid friction, and mass transfer have been analyzed numerically. Using a similarity transformation, the governing equations of continuity, momentum, and energy and concentration equations, of nonlinear system, were reduced to a set of ordinary differential equations and solved numerically. The effects of unsteadiness parameter, magnetic field parameter, porosity parameter, heat generation/absorption parameter, Lewis number, chemical reaction parameter, and Brinkman number parameter on the velocity, the temperature, the concentration, and the entropy generation rates profiles were investigated and the results were presented graphically.

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Mathematical modeling of electro hydrodynamic non-Newtonian fluid flow through tapered arterial stenosis with periodic body acceleration and applied magnetic field

Applied Mathematics and Computation ◽

10.1016/j.amc.2019.05.024 ◽

2019 ◽

Vol 362 ◽

pp. 124453 ◽

Cited By ~ 1

Author(s):

R. Padma ◽

R. Ponalagusamy ◽

R. Tamil Selvi

Keyword(s):

Mathematical Modeling ◽

Magnetic Field ◽

Fluid Flow ◽

Newtonian Fluid ◽

Applied Magnetic Field ◽

Arterial Stenosis ◽

Body Acceleration ◽

Flow Through

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An Analytical Solution of Micropolar-Newtonian Fluid Flow Through Annular Porous Regions

National Academy Science Letters ◽

10.1007/s40009-020-00901-7 ◽

2020 ◽

Vol 43 (5) ◽

pp. 457-462

Author(s):

Pramod Kumar Yadav ◽

Jaikanth Yadav Puchakatla ◽

Sneha Jaiswal

Keyword(s):

Fluid Flow ◽

Analytical Solution ◽

Newtonian Fluid ◽

Flow Through

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Finite Element Least Square Technique for Newtonian Fluid Flow through a Semicircular Cylinder of Recirculating Region via COMSOL Multiphysics

Journal of Mathematics ◽

10.1155/2020/8869308 ◽

2020 ◽

Vol 2020 ◽

pp. 1-11

Author(s):

Ilyas Khan ◽

Abid A. Memon ◽

M. Asif Memon ◽

Kaleemullah Bhatti ◽

Gul M. Shaikh ◽

...

Keyword(s):

Reynolds Number ◽

Fluid Flow ◽

Newtonian Fluid ◽

Rectangular Channel ◽

Numerical Procedure ◽

Least Square ◽

Comsol Multiphysics ◽

Velocity Magnitude ◽

Increase Reynolds Number ◽

Flow Through

This article aims to study Newtonian fluid flow modeling and simulation through a rectangular channel embedded in a semicircular cylinder with the range of Reynolds number from 100 to 1500. The fluid is considered as laminar and Newtonian, and the problem is time independent. A numerical procedure of finite element’s least Square technique is implemented through COMSOL multiphysics 5.4. The problem is validated through asymptotic solution governed through the screen boundary condition. The vortex length of the recirculating region formed at the back of the cylinder and orientation of velocity field and pressure will be discussed by three horizontal and four vertical lines along the recirculating region in terms of Reynolds number. It was found that the two vortices of unequal size have appeared and the lengths of these vortices are increased with the increase Reynolds number. Also, the empirical equations through the linear regression procedure were determined for those vortices. The orientation of the velocity magnitude as well as pressure along the lines passing through the center of upper and lower vortices are the same.

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