Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flow
This study investigates microorganisms generated bioconvection in an MHD Casson hybrid nanofluid on a convectively heated rotating frame. The hybrid nanofluid behaves like blood because it contains TiO2 and ZnO nanoparticles mixed in a special fluid called a non-Newtonian Casson fluid. Their interac...
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Elsevier
2025-09-01
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| Series: | International Journal of Thermofluids |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666202725003143 |
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| author | P. Asaigeethan K. Loganathan V. Karthik S. Shageen Fathima D. Priyadharshini Krishna Prakash Arunachalam |
| author_facet | P. Asaigeethan K. Loganathan V. Karthik S. Shageen Fathima D. Priyadharshini Krishna Prakash Arunachalam |
| author_sort | P. Asaigeethan |
| collection | DOAJ |
| description | This study investigates microorganisms generated bioconvection in an MHD Casson hybrid nanofluid on a convectively heated rotating frame. The hybrid nanofluid behaves like blood because it contains TiO2 and ZnO nanoparticles mixed in a special fluid called a non-Newtonian Casson fluid. Their interaction greatly affects nanoparticle dispersion, thermal conductivity, and flow stability. The PDEs governing momentum, energy, concentration, and motile microbe distribution are turned into ODEs by similarity transformations. We numerically solve these modified equations in MATLAB using bvp5c. The study looks at how certain factors, like the Casson parameter, magnetic parameter, thermophoresis and Brownian motion numbers, Prandtl number, Schmidt number, and bioconvection parameters, influence the flow and movement of materials. Results show that increasing the magnetic parameter and Casson fluid index decreases fluid velocity and increases temperature gradients. Hybrid nanofluid systems have 22–28 % higher Nusselt numbers than single nanoparticle solutions. The analysis looks at important ways heat moves, including thermophoresis, Brownian motion, how viscosity affects heat, the impact of magnetic fields, and the movement of microorganisms. These discoveries can improve thermal and mass transmission in heat exchangers, biomedical devices, and industrial systems that need better heat management. The results are verified with previousley published litreature and the obtained results are optimum. |
| format | Article |
| id | doaj-art-7e9f1411b28841f385ceb84a0bf9a49e |
| institution | Kabale University |
| issn | 2666-2027 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj-art-7e9f1411b28841f385ceb84a0bf9a49e2025-08-24T05:14:38ZengElsevierInternational Journal of Thermofluids2666-20272025-09-012910136810.1016/j.ijft.2025.101368Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flowP. Asaigeethan0K. Loganathan1V. Karthik2S. Shageen Fathima3D. Priyadharshini4Krishna Prakash Arunachalam5Department of Mathematics, Government College of Technology, Coimbatore, Tamil Nadu, IndiaDepartment of Mathematics and Statistics, Manipal University Jaipur, Jaipur 303007, Rajasthan, India; Corresponding author.Department of Industrial Biotechnology, Government College of Technology, Coimbatore 641013, IndiaDepartment of Industrial Biotechnology, Government College of Technology, Coimbatore 641013, IndiaDepartment of Industrial Biotechnology, Government College of Technology, Coimbatore 641013, IndiaDepartamento de Ciencias de la Construcción, Facultad de Ciencias de la Construcción Ordenamiento Territorial, Universidad Tecnológica Metropolitana, Santiago, 8330383 ChileThis study investigates microorganisms generated bioconvection in an MHD Casson hybrid nanofluid on a convectively heated rotating frame. The hybrid nanofluid behaves like blood because it contains TiO2 and ZnO nanoparticles mixed in a special fluid called a non-Newtonian Casson fluid. Their interaction greatly affects nanoparticle dispersion, thermal conductivity, and flow stability. The PDEs governing momentum, energy, concentration, and motile microbe distribution are turned into ODEs by similarity transformations. We numerically solve these modified equations in MATLAB using bvp5c. The study looks at how certain factors, like the Casson parameter, magnetic parameter, thermophoresis and Brownian motion numbers, Prandtl number, Schmidt number, and bioconvection parameters, influence the flow and movement of materials. Results show that increasing the magnetic parameter and Casson fluid index decreases fluid velocity and increases temperature gradients. Hybrid nanofluid systems have 22–28 % higher Nusselt numbers than single nanoparticle solutions. The analysis looks at important ways heat moves, including thermophoresis, Brownian motion, how viscosity affects heat, the impact of magnetic fields, and the movement of microorganisms. These discoveries can improve thermal and mass transmission in heat exchangers, biomedical devices, and industrial systems that need better heat management. The results are verified with previousley published litreature and the obtained results are optimum.http://www.sciencedirect.com/science/article/pii/S2666202725003143Casson hybrid nanofluidBioconvectionMHD flowMotile microorganismsHeat and mass transfer enhancement |
| spellingShingle | P. Asaigeethan K. Loganathan V. Karthik S. Shageen Fathima D. Priyadharshini Krishna Prakash Arunachalam Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flow International Journal of Thermofluids Casson hybrid nanofluid Bioconvection MHD flow Motile microorganisms Heat and mass transfer enhancement |
| title | Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flow |
| title_full | Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flow |
| title_fullStr | Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flow |
| title_full_unstemmed | Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flow |
| title_short | Microorganisms induced bioconvection over a convectively heated rotating frame: a computational model of the blood-based MHD Casson hybrid nanofluid flow |
| title_sort | microorganisms induced bioconvection over a convectively heated rotating frame a computational model of the blood based mhd casson hybrid nanofluid flow |
| topic | Casson hybrid nanofluid Bioconvection MHD flow Motile microorganisms Heat and mass transfer enhancement |
| url | http://www.sciencedirect.com/science/article/pii/S2666202725003143 |
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