Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effect
This study investigates heat transfer and entropy production in Couple-Stress hybrid nanofluid flow between two spinning disks. It incorporates the Darcy–Forchheimer porous effects and the Hall effect. The hybrid nanofluid consists of titanium dioxide (TiO2) and cobalt ferrite (CoFe2O4) nanoparticle...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Partial Differential Equations in Applied Mathematics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666818125000014 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841545528901369856 |
|---|---|
| author | Sk Enamul Seetalsmita Samal Surender Ontela |
| author_facet | Sk Enamul Seetalsmita Samal Surender Ontela |
| author_sort | Sk Enamul |
| collection | DOAJ |
| description | This study investigates heat transfer and entropy production in Couple-Stress hybrid nanofluid flow between two spinning disks. It incorporates the Darcy–Forchheimer porous effects and the Hall effect. The hybrid nanofluid consists of titanium dioxide (TiO2) and cobalt ferrite (CoFe2O4) nanoparticles in the base fluid of engine oil. The governing equations are made dimensionless through similarity transformations. The semi-analytical methodology known as the homotopy analysis method (HAM) is then applied to the solution. Critical parameters such as the inertial coefficient, heat source parameter, nanoparticle concentration, and magnetic field parameter are analyzed graphically. These analyses explore their effects on velocity profiles, temperature distribution, and entropy generation. The findings demonstrate that radial velocity initially increases and then decreases with an increasing inertial coefficient, while axial velocity increases consistently. The temperature profile grows with a higher heat source parameter, reflecting enhanced internal heat generation. Entropy generation displays non-linear behavior concerning the heat source parameters. The Bejan number decreases near the disks due to efficient heat transfer. However, it increases in the central region, where thermal irreversibility dominates at higher values of volume fraction concentration of TiO2. These results provide valuable insights into the effects of nanoparticle concentration. They also shed light on the impact of thermal characteristics and flow parameters. This study optimizes thermal management and heat transfer systems in engineering applications. It offers guidance for improving energy efficiency in advanced fluid dynamics scenarios. |
| format | Article |
| id | doaj-art-aba9ff0aa33443abaf13b060c69bbc05 |
| institution | Kabale University |
| issn | 2666-8181 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Partial Differential Equations in Applied Mathematics |
| spelling | doaj-art-aba9ff0aa33443abaf13b060c69bbc052025-01-12T05:26:10ZengElsevierPartial Differential Equations in Applied Mathematics2666-81812025-03-0113101073Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effectSk Enamul0Seetalsmita Samal1Surender Ontela2Department of Mathematics, National Institute of Technology Mizoram, Chaltlang, Aizawl, 796012, Mizoram, IndiaDepartment of Mathematics, National Institute of Technology Mizoram, Chaltlang, Aizawl, 796012, Mizoram, IndiaDepartment of Mathematics, National Institute of Technology Kurukshetra, Kurukshetra, 136119, Haryana, India; Department of Mathematics, National Institute of Technology Mizoram, Chaltlang, Aizawl, 796012, Mizoram, India; Corresponding author at: Department of Mathematics, National Institute of Technology Mizoram, Chaltlang, Aizawl, 796012, Mizoram, India.This study investigates heat transfer and entropy production in Couple-Stress hybrid nanofluid flow between two spinning disks. It incorporates the Darcy–Forchheimer porous effects and the Hall effect. The hybrid nanofluid consists of titanium dioxide (TiO2) and cobalt ferrite (CoFe2O4) nanoparticles in the base fluid of engine oil. The governing equations are made dimensionless through similarity transformations. The semi-analytical methodology known as the homotopy analysis method (HAM) is then applied to the solution. Critical parameters such as the inertial coefficient, heat source parameter, nanoparticle concentration, and magnetic field parameter are analyzed graphically. These analyses explore their effects on velocity profiles, temperature distribution, and entropy generation. The findings demonstrate that radial velocity initially increases and then decreases with an increasing inertial coefficient, while axial velocity increases consistently. The temperature profile grows with a higher heat source parameter, reflecting enhanced internal heat generation. Entropy generation displays non-linear behavior concerning the heat source parameters. The Bejan number decreases near the disks due to efficient heat transfer. However, it increases in the central region, where thermal irreversibility dominates at higher values of volume fraction concentration of TiO2. These results provide valuable insights into the effects of nanoparticle concentration. They also shed light on the impact of thermal characteristics and flow parameters. This study optimizes thermal management and heat transfer systems in engineering applications. It offers guidance for improving energy efficiency in advanced fluid dynamics scenarios.http://www.sciencedirect.com/science/article/pii/S2666818125000014Hybrid nanofluidCouple-stress fluidDouble rotating disksHall effectDarcy–Forchheimer porous mediumEntropy generation |
| spellingShingle | Sk Enamul Seetalsmita Samal Surender Ontela Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effect Partial Differential Equations in Applied Mathematics Hybrid nanofluid Couple-stress fluid Double rotating disks Hall effect Darcy–Forchheimer porous medium Entropy generation |
| title | Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effect |
| title_full | Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effect |
| title_fullStr | Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effect |
| title_full_unstemmed | Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effect |
| title_short | Entropy analysis of Darcy–Forchheimer flow of couple-stress TiO2-CoFe2O4/engine oil based hybrid nanofluid between two rotating disks considering hall effect |
| title_sort | entropy analysis of darcy forchheimer flow of couple stress tio2 cofe2o4 engine oil based hybrid nanofluid between two rotating disks considering hall effect |
| topic | Hybrid nanofluid Couple-stress fluid Double rotating disks Hall effect Darcy–Forchheimer porous medium Entropy generation |
| url | http://www.sciencedirect.com/science/article/pii/S2666818125000014 |
| work_keys_str_mv | AT skenamul entropyanalysisofdarcyforchheimerflowofcouplestresstio2cofe2o4engineoilbasedhybridnanofluidbetweentworotatingdisksconsideringhalleffect AT seetalsmitasamal entropyanalysisofdarcyforchheimerflowofcouplestresstio2cofe2o4engineoilbasedhybridnanofluidbetweentworotatingdisksconsideringhalleffect AT surenderontela entropyanalysisofdarcyforchheimerflowofcouplestresstio2cofe2o4engineoilbasedhybridnanofluidbetweentworotatingdisksconsideringhalleffect |