Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms

The ultimate aim of the present paper is to investigate thermal, mass and microorganism transfer rates in convective flow. Nanofluid's heat transfer along with unsteady laminar flow on stretched rotating disk with motile microorganism bioconvection is numerically analyzed. The novelty of study...

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Main Authors: Mazhar Hussain, Samya Shahid, Noreen Sher Akbar, Mohammed Kbiri Alaoui
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X25000565
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author Mazhar Hussain
Samya Shahid
Noreen Sher Akbar
Mohammed Kbiri Alaoui
author_facet Mazhar Hussain
Samya Shahid
Noreen Sher Akbar
Mohammed Kbiri Alaoui
author_sort Mazhar Hussain
collection DOAJ
description The ultimate aim of the present paper is to investigate thermal, mass and microorganism transfer rates in convective flow. Nanofluid's heat transfer along with unsteady laminar flow on stretched rotating disk with motile microorganism bioconvection is numerically analyzed. The novelty of study is to construct a framework that combines microorganisms along with energy equation to analyze how can they be helpful in making a system more efficient like heat transfer enhancement in cooling devices and heat transfer exchanger etc. The model combined energy and concentration equation of microorganisms along with modified momentum equations, considering impact of internal heat generation and nanoparticles diffusion. Impact of unsteady variable (S), disk stretching variable (α), Prandtl number (Pr), Lewis number (Le) are analyzed graphically to understand the thermal and flow behavior. The boundary value problem is numerically solved using shooting method with Runga-Kutta technique by converting equations into initial value problem. Graphical results indicates that parameters like increment of unsteady effects helps in dissipation of thermal energy rapidly and bioconvection evidently influenced velocity, temperature and microorganism profile by thinning the microorganism layer, showing valuable results for optimizing thermal systems like in aerospace engineering where spacecraft undergo extreme temperature due to friction between spacecraft and atmosphere.
format Article
id doaj-art-8e69c0deeb90422a980370dd6f088a9c
institution Kabale University
issn 2214-157X
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publishDate 2025-02-01
publisher Elsevier
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series Case Studies in Thermal Engineering
spelling doaj-art-8e69c0deeb90422a980370dd6f088a9c2025-02-02T05:27:29ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105796Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganismsMazhar Hussain0Samya Shahid1Noreen Sher Akbar2Mohammed Kbiri Alaoui3Department of Science and Humanities, National University of Computer and Emerging Sciences, Lahore, Pakistan; Corresponding author.Department of Science and Humanities, National University of Computer and Emerging Sciences, Lahore, PakistanDepartment of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia; Corresponding author.Department of Mathematics, College of Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi ArabiaThe ultimate aim of the present paper is to investigate thermal, mass and microorganism transfer rates in convective flow. Nanofluid's heat transfer along with unsteady laminar flow on stretched rotating disk with motile microorganism bioconvection is numerically analyzed. The novelty of study is to construct a framework that combines microorganisms along with energy equation to analyze how can they be helpful in making a system more efficient like heat transfer enhancement in cooling devices and heat transfer exchanger etc. The model combined energy and concentration equation of microorganisms along with modified momentum equations, considering impact of internal heat generation and nanoparticles diffusion. Impact of unsteady variable (S), disk stretching variable (α), Prandtl number (Pr), Lewis number (Le) are analyzed graphically to understand the thermal and flow behavior. The boundary value problem is numerically solved using shooting method with Runga-Kutta technique by converting equations into initial value problem. Graphical results indicates that parameters like increment of unsteady effects helps in dissipation of thermal energy rapidly and bioconvection evidently influenced velocity, temperature and microorganism profile by thinning the microorganism layer, showing valuable results for optimizing thermal systems like in aerospace engineering where spacecraft undergo extreme temperature due to friction between spacecraft and atmosphere.http://www.sciencedirect.com/science/article/pii/S2214157X25000565Thermal conductionStretching sheetMotile microorganismsThermophoretic parameter
spellingShingle Mazhar Hussain
Samya Shahid
Noreen Sher Akbar
Mohammed Kbiri Alaoui
Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
Case Studies in Thermal Engineering
Thermal conduction
Stretching sheet
Motile microorganisms
Thermophoretic parameter
title Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
title_full Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
title_fullStr Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
title_full_unstemmed Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
title_short Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
title_sort unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
topic Thermal conduction
Stretching sheet
Motile microorganisms
Thermophoretic parameter
url http://www.sciencedirect.com/science/article/pii/S2214157X25000565
work_keys_str_mv AT mazharhussain unsteadyflowandheattransferoptimizationofviscousfluidwithbioconvectionoverarotatingstretchablediskandgyrotacticmotilemicroorganisms
AT samyashahid unsteadyflowandheattransferoptimizationofviscousfluidwithbioconvectionoverarotatingstretchablediskandgyrotacticmotilemicroorganisms
AT noreensherakbar unsteadyflowandheattransferoptimizationofviscousfluidwithbioconvectionoverarotatingstretchablediskandgyrotacticmotilemicroorganisms
AT mohammedkbirialaoui unsteadyflowandheattransferoptimizationofviscousfluidwithbioconvectionoverarotatingstretchablediskandgyrotacticmotilemicroorganisms