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Volume 9 Issue 3
March-2022
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Published Paper ID:
JETIR2203265


Registration ID:
321293

Page Number

c487-c496

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Title

Thermal Convection in a Casson Nanofluid Layer Saturating Porous Medium: Darcy-Brinkman Model

Abstract

The convective instability of a porous layer saturating a viscoplastic Casson nanofluid is investigated analytically and numerically. Darcy Brinkman model is used to frame momentum equation for the system and non-Newtonian behavior is explored for Casson fluid. The model incorporates the diffusion coefficients due to Brownian motion and thermophoresis. Normal mode technique is used to simplify the governing equations and linear stability theory is employed. The present study finds the expressions of thermal Rayleigh number for free- free, rigid-free and rigid-rigid boundaries and discusses the effects of various parameters on the onset of convection currents in the fluid layer using the software Wolfram Mathematica. Out of all three boundaries, rigid-rigid boundaries make the fluid layer most stable. It is found that Darcy number and porosity parameter delay the onset of convection currents in the fluid layer while Casson parameter, nanoparticle Rayleigh number and Lewis number show a destabilizing influence on the system.

Key Words

Nanoparticles; Non-Newtonian fluid; Casson model; Brownian motion; Thermophoresis; Darcy Brinkman model.

Cite This Article

"Thermal Convection in a Casson Nanofluid Layer Saturating Porous Medium: Darcy-Brinkman Model ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 3, page no.c487-c496, March-2022, Available :http://www.jetir.org/papers/JETIR2203265.pdf

ISSN


2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"Thermal Convection in a Casson Nanofluid Layer Saturating Porous Medium: Darcy-Brinkman Model ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 3, page no. ppc487-c496, March-2022, Available at : http://www.jetir.org/papers/JETIR2203265.pdf

Publication Details

Published Paper ID: JETIR2203265
Registration ID: 321293
Published In: Volume 9 | Issue 3 | Year March-2022
DOI (Digital Object Identifier): http://doi.one/10.1729/Journal.29482
Page No: c487-c496
Country: Chandigarh, Chandigarh, India .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication


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