Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes

Combination of MWCNTsandwater based nanofluid flow, isentropic lines and isotherms features inside a square enclosure with radiation and magnetic field is examined numerically in the current article. The dimensionless equations representing entropy generation, heat and momentum are solved numericall...

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Main Authors: P. Sudarsana Reddy, P. Sreedevi, V. Nageswara Reddy
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Chemical Thermodynamics and Thermal Analysis
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2667312622000128
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author P. Sudarsana Reddy
P. Sreedevi
V. Nageswara Reddy
author_facet P. Sudarsana Reddy
P. Sreedevi
V. Nageswara Reddy
author_sort P. Sudarsana Reddy
collection DOAJ
description Combination of MWCNTsandwater based nanofluid flow, isentropic lines and isotherms features inside a square enclosure with radiation and magnetic field is examined numerically in the current article. The dimensionless equations representing entropy generation, heat and momentum are solved numerically by applying finite difference scheme. The changes in the sketches of isotherms, streamlines and isentropic fields with dissimilar values of radiation parameter (0.01≤R≤0.1), volume fraction of nanoparticle parameter (0.01≤ϕ≤0.1), Rayleigh number (103≤Ra≤104), Prandtl number (5.2≤Pr≤8.2) and magnetic parameter (0.1≤M≤0.7) have scrutinized and are plotted through sketches. The scatterings of rates of heat transfer with respect to these parameters are also depicted through graphs. Non – dimensional rates of heat transfer intensifies in the nanofluid region with augmenting values of radiation parameter. The sketches of temperature lines of water−−MWCNTs based nanofluid lost their nature in the central part of the chamber and they are virtually vertical shape close to the right cold wall as the values of volume fraction of carbon nanotubes rises. 7.2% augmentation in heat transfer rate is noticed when 4% volume fraction of MWCNTs are added to the base fluid .
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spelling doaj.art-0dda5198f3ac42f5928f8fafd0ae553e2022-12-22T02:23:42ZengElsevierChemical Thermodynamics and Thermal Analysis2667-31262022-06-016100045Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubesP. Sudarsana Reddy0P. Sreedevi1V. Nageswara Reddy2Department of Mathematics, Rajeev Gandhi Memorial College of Engineering and Technology, Nandyal, AP, India; Corresponding author.Department of Mathematics, Rajeev Gandhi Memorial College of Engineering and Technology, Nandyal, AP, IndiaDepartment of Mechanical Engineering, Rajeev Gandhi Memorial College of Engineering and Technology, Nandyal, AP, IndiaCombination of MWCNTsandwater based nanofluid flow, isentropic lines and isotherms features inside a square enclosure with radiation and magnetic field is examined numerically in the current article. The dimensionless equations representing entropy generation, heat and momentum are solved numerically by applying finite difference scheme. The changes in the sketches of isotherms, streamlines and isentropic fields with dissimilar values of radiation parameter (0.01≤R≤0.1), volume fraction of nanoparticle parameter (0.01≤ϕ≤0.1), Rayleigh number (103≤Ra≤104), Prandtl number (5.2≤Pr≤8.2) and magnetic parameter (0.1≤M≤0.7) have scrutinized and are plotted through sketches. The scatterings of rates of heat transfer with respect to these parameters are also depicted through graphs. Non – dimensional rates of heat transfer intensifies in the nanofluid region with augmenting values of radiation parameter. The sketches of temperature lines of water−−MWCNTs based nanofluid lost their nature in the central part of the chamber and they are virtually vertical shape close to the right cold wall as the values of volume fraction of carbon nanotubes rises. 7.2% augmentation in heat transfer rate is noticed when 4% volume fraction of MWCNTs are added to the base fluid .http://www.sciencedirect.com/science/article/pii/S2667312622000128Finite difference methodMWCNTSThermal radiationMagnetic fieldSquare cavityEntropy generation
spellingShingle P. Sudarsana Reddy
P. Sreedevi
V. Nageswara Reddy
Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes
Chemical Thermodynamics and Thermal Analysis
Finite difference method
MWCNTS
Thermal radiation
Magnetic field
Square cavity
Entropy generation
title Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes
title_full Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes
title_fullStr Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes
title_full_unstemmed Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes
title_short Entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes
title_sort entropy generation and heat transfer analysis of magnetic nanofluid flow inside a square cavity filled with carbon nanotubes
topic Finite difference method
MWCNTS
Thermal radiation
Magnetic field
Square cavity
Entropy generation
url http://www.sciencedirect.com/science/article/pii/S2667312622000128
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AT psreedevi entropygenerationandheattransferanalysisofmagneticnanofluidflowinsideasquarecavityfilledwithcarbonnanotubes
AT vnageswarareddy entropygenerationandheattransferanalysisofmagneticnanofluidflowinsideasquarecavityfilledwithcarbonnanotubes