Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal properties
This study focuses on the thermo-fluid dynamics of non-Newtonian Casson fluid within a porous channel with expanding and contracting walls, a configuration of significant relevance in industrial applications like cooling systems and biomedical processes such as biofluid transport. The investigation...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Partial Differential Equations in Applied Mathematics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666818125000336 |
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| author | Shahid Rafiq Babar Ahmad Bilal Aysha Afzal Jagadish V. Tawade Nitiraj V. Kulkarni Barno Abdullaeva Taoufik Saidani Manish Gupta |
| author_facet | Shahid Rafiq Babar Ahmad Bilal Aysha Afzal Jagadish V. Tawade Nitiraj V. Kulkarni Barno Abdullaeva Taoufik Saidani Manish Gupta |
| author_sort | Shahid Rafiq |
| collection | DOAJ |
| description | This study focuses on the thermo-fluid dynamics of non-Newtonian Casson fluid within a porous channel with expanding and contracting walls, a configuration of significant relevance in industrial applications like cooling systems and biomedical processes such as biofluid transport. The investigation accounts for critical factors such as Joule heating, thermal radiation, porosity, and the temperature dependence of viscosity and thermal conductivity. The governing equations are reduced to ordinary differential equations using similarity transformations and solved with the Least Square Method (LSM). The findings reveal that the Hartmann number and Eckert number strongly influence velocity and temperature profiles. Thermal radiation elevates the core fluid temperature while heat sinks reduce it near the channel walls. Viscosity models demonstrate notable effects on flow resistance and heat transfer. The findings will provide significant applications requiring efficient thermal management and precise control of fluid dynamics, making the results valuable for engineering and biomedical advancements. |
| format | Article |
| id | doaj-art-541b9280f8434ec18aaab940a0fbabc7 |
| 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-541b9280f8434ec18aaab940a0fbabc72025-02-07T04:48:26ZengElsevierPartial Differential Equations in Applied Mathematics2666-81812025-03-0113101105Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal propertiesShahid Rafiq0Babar Ahmad Bilal1Aysha Afzal2Jagadish V. Tawade3Nitiraj V. Kulkarni4Barno Abdullaeva5Taoufik Saidani6Manish Gupta7Department of Mathematics, Govt. Sadiq Egerton Graduate College, Bahawalpur 63100, PakistanDepartment of Mathematics and Statistics, Institute of Southern Punjab Multan, PakistanDepartment of Mathematics, National college of Business administration and Economics, sub campus Bahawalpur, PakistanDepartment of Mathematics, Vishwakarma University, Pune 411048, India; Corresponding authors.Department of Mathematics, Vishwakarma University, Pune 411048, IndiaDepartment of Mathematics and Information Technologies, Vice-Rector for Scientific Affairs, Tashkent State Pedagogical University, Tashkent, UzbekistanCenter for Scientific Research and Entrepreneurship, Northern Border University, 73213, Arar, Saudi Arabia; Corresponding authors.Division of Research and Development, Lovely Professional University, Phagwara, IndiaThis study focuses on the thermo-fluid dynamics of non-Newtonian Casson fluid within a porous channel with expanding and contracting walls, a configuration of significant relevance in industrial applications like cooling systems and biomedical processes such as biofluid transport. The investigation accounts for critical factors such as Joule heating, thermal radiation, porosity, and the temperature dependence of viscosity and thermal conductivity. The governing equations are reduced to ordinary differential equations using similarity transformations and solved with the Least Square Method (LSM). The findings reveal that the Hartmann number and Eckert number strongly influence velocity and temperature profiles. Thermal radiation elevates the core fluid temperature while heat sinks reduce it near the channel walls. Viscosity models demonstrate notable effects on flow resistance and heat transfer. The findings will provide significant applications requiring efficient thermal management and precise control of fluid dynamics, making the results valuable for engineering and biomedical advancements.http://www.sciencedirect.com/science/article/pii/S2666818125000336Asymmetric flowNon-newtonian fluidTemperature-dependent viscosityVariable thermal conductivityLeast square methodJoule heating |
| spellingShingle | Shahid Rafiq Babar Ahmad Bilal Aysha Afzal Jagadish V. Tawade Nitiraj V. Kulkarni Barno Abdullaeva Taoufik Saidani Manish Gupta Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal properties Partial Differential Equations in Applied Mathematics Asymmetric flow Non-newtonian fluid Temperature-dependent viscosity Variable thermal conductivity Least square method Joule heating |
| title | Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal properties |
| title_full | Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal properties |
| title_fullStr | Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal properties |
| title_full_unstemmed | Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal properties |
| title_short | Thermo-fluid dynamics of non-newtonian casson fluid in expanding-contracting channels with joule heating and variable thermal properties |
| title_sort | thermo fluid dynamics of non newtonian casson fluid in expanding contracting channels with joule heating and variable thermal properties |
| topic | Asymmetric flow Non-newtonian fluid Temperature-dependent viscosity Variable thermal conductivity Least square method Joule heating |
| url | http://www.sciencedirect.com/science/article/pii/S2666818125000336 |
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