Heat transfer and entropy generation analysis in a horizontal channel filled with a permeable medium in the presence of aligned magnetic field and temperature gradient heat source

The current investigation is concerned with heat transfer and entropy generation analysis in a horizontal channel brimming with porous medium in the existence of aligned magnetic field, viscous and joules dissipation and temperature gradient heat source. The boundary conditions are treated as consta...

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Bibliographic Details
Published in:SN applied sciences 2021-03, Vol.3 (3), p.377, Article 377
Main Authors: Balamurugan, K. S., Udaya Bhaskara Varma, N., Ramaprasad, J. L.
Format: Article
Language:English
Subjects:
3. Engineering (general)
Applied and Technical Physics
Boundary conditions
Boundary layer thickness
Boundary layers
Chemistry/Food Science
Earth Sciences
Engineering
Entropy
Environment
Fluid dynamics
Heat transfer
Heat transfer coefficients
Investigations
Magnetic fields
Materials Science
Parameters
Partial differential equations
Permeability
Porous media
Radiation
Research Article
Shear stress
Temperature gradients
Velocity
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Summary:The current investigation is concerned with heat transfer and entropy generation analysis in a horizontal channel brimming with porous medium in the existence of aligned magnetic field, viscous and joules dissipation and temperature gradient heat source. The boundary conditions are treated as constant values for velocity and temperature at lower and upper walls. An explicit solution of governing equations has been attained in closed system. The repercussions of pertinent parameters on the fluid velocity, temperature, entropy generation and Bejan number are conferred and scrutinized through graphs in detail. Additionally the expressions for shear stress and the rate of heat transfer coefficients at the channel walls are derived and results obtained are physically interpreted through tables. From the conquered results, it is addressed that Brinkman number Br enhances boundary layer thickness. Entropy generation increases with intensifying values of M , aligned angle ϕ, temperature gradient heat source parameter Q , characteristic temperature ration ω and permeability parameter K. The shear stress is same at both the lower and upper walls.
ISSN:2523-3963
2523-3971
DOI:10.1007/s42452-021-04380-3