Joule heating effect on entropy generation in MHD mixed convection flow of chemically reacting nanofluid between two concentric cylinders

This article aims to present the non-similar solution of MHD mixed convection flow using the Sparrow-Quack-Boerner local non-similarity method. Entropy analysis is also performed in the presence of energy dissipation and Joule heating. The buoyancy parameter is chosen as the non-similarity variable and the equations are derived up to the second level of truncation. The dependency of dimensionless velocity profile, temperature distribution, Bejan and entropy generation number on physical parameters has been discussed. As far as the knowledge of the authors is concerned, no attempt has been made on the entropy analysis of MHD mixed convection flow by the local non-similarity method.

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nth order reactive nanoliquid through convective elongated sheet under mixed convection flow with joule heating effects

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-021-10816-0 ◽

2021 ◽

Author(s):

MD. Shamshuddin ◽

Mohamed R. Eid

Keyword(s):

Mixed Convection ◽

Joule Heating ◽

Convection Flow ◽

Mixed Convection Flow ◽

Heating Effects

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Effects of Energy Dissipation and Variable Thermal Conductivity on Entropy Generation Rate in Mixed Convection Flow

Journal of Thermal Science and Engineering Applications ◽

10.1115/1.4038703 ◽

2018 ◽

Vol 10 (4) ◽

Cited By ~ 5

Author(s):

Muhammad Qasim ◽

Muhammad Idrees Afridi

Keyword(s):

Thermal Conductivity ◽

Energy Dissipation ◽

Mixed Convection ◽

Entropy Generation ◽

Variable Thermal Conductivity ◽

Convection Flow ◽

Mixed Convection Flow ◽

Entropy Generation Number ◽

Similarity Transformations ◽

Generation Number

Analysis of entropy generation in mixed convection flow over a vertically stretching sheet has been carried out in the presence of variable thermal conductivity and energy dissipation. Governing equations are reduced to self-similar ordinary differential equations via similarity transformations and are solved numerically by applying shooting and fourth-order Runge–Kutta techniques. The expressions for entropy generation number and Bejan number are also obtained by using similarity transformations. The influence of embedding physical parameters on quantities of interest is discussed through graphical illustrations. The results reveal that entropy generation number increases significantly in the vicinity of stretching surface and gradually dies out as one move away from the sheet. Also, the entropy generation number decreases with an increase in temperature difference parameter. Moreover, entropy generation number enhances with an enhancement in the Eckert number, Prandtl number, and variable thermal conductivity parameter.

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Radiative mixed convection flow of maxwell nanofluid over a stretching cylinder with joule heating and heat source/sink effects

Scientific Reports ◽

10.1038/s41598-020-74393-2 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Saeed Islam ◽

Arshad Khan ◽

Poom Kumam ◽

Hussam Alrabaiah ◽

Zahir Shah ◽

...

Keyword(s):

Brownian Motion ◽

Heat Source ◽

Mixed Convection ◽

Joule Heating ◽

Internal Heat ◽

Convection Flow ◽

Stretching Cylinder ◽

Mixed Convection Flow ◽

Maxwell Nanofluid ◽

Source Sink

Abstract This work analyses thermal effect for a mixed convection flow of Maxwell nanofluid spinning motion produced by rotating and bidirectional stretching cylinder. Impacts of Joule heating and internal heat source/sink are also taken into account for current investigation. Moreover, the flow is exposed to a uniform magnetic field with convective boundary conditions. The modeled equations are converted to set of ODEs through group of similar variables and are then solved by using semi analytical technique HAM. It is observed in this study that, velocity grows up with enhancing values of Maxwell, mixed convection parameters and reduces with growing values of magnetic parameter. Temperature jumps up with increasing values of heat source, Eckert number, Brownian motion,thermophoresis parameter and jumps down with growing values of Prandtl number and heat sink. The concentration is a growing function of thermophoresis parameter and a reducing function of Brownian motion and Schmidt number.

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