Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribs
This research comprehensively examines the influence of the V-shaped rib angle of attack on the thermal and hydraulic efficacy of microchannel heat sinks (MCHS), employing Computational Fluid Dynamics (CFD) simulations over Reynolds numbers ranging from 100 to 900. The primary innovation of this inv...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24017155 |
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| author | Naushad Ali Injamamul Haque Tabish Alam Tauseef Uddin Siddiqui Mushtaq Ahmad Ansari Jagmohan Yadav Shivam Srivastava Erdem Cuce Intesaaf Ashraf Dan Dobrotă |
| author_facet | Naushad Ali Injamamul Haque Tabish Alam Tauseef Uddin Siddiqui Mushtaq Ahmad Ansari Jagmohan Yadav Shivam Srivastava Erdem Cuce Intesaaf Ashraf Dan Dobrotă |
| author_sort | Naushad Ali |
| collection | DOAJ |
| description | This research comprehensively examines the influence of the V-shaped rib angle of attack on the thermal and hydraulic efficacy of microchannel heat sinks (MCHS), employing Computational Fluid Dynamics (CFD) simulations over Reynolds numbers ranging from 100 to 900. The primary innovation of this investigation resides in the methodical analysis of the impacts of varying rib angles, specifically from 35° to 90°, on both heat transfer and flow resistance within the MCHS framework. The findings indicate that a reduced angle of attack, notably 35°, markedly improves thermal performance, as evidenced by the Nusselt number (Nu) achieving a value of 13.81 at a Reynolds number of 300, in contrast to a mere 8.12 at 90°. This enhancement in thermal transfer is ascribed to the more effective turbulence produced at lower angles, which optimizes convective heat transfer while minimizing excessive resistance. Importantly, this study also underscores the dual effect of rib angle on flow dynamics, as diminished angles elevate friction factor (f), necessitating increased energy input for fluid movement—friction factor at a Reynolds number of 300 were recorded at 0.0465 for 35° and 0.0288 for 90°, thereby validating the compromise between heat transfer and flow resistance. This research offers a novel perspective that while elevated rib angles (approaching 90°) mitigate hydraulic resistance, they concurrently reduce the enhancement of heat transfer, thereby accentuating the necessity for an optimized rib angle to achieve equilibrium between thermal and hydraulic performance. |
| format | Article |
| id | doaj-art-1e029bc1c4394d2cb31ca80099e39524 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-1e029bc1c4394d2cb31ca80099e395242025-01-08T04:52:53ZengElsevierCase Studies in Thermal Engineering2214-157X2025-01-0165105684Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribsNaushad Ali0Injamamul Haque1Tabish Alam2Tauseef Uddin Siddiqui3Mushtaq Ahmad Ansari4Jagmohan Yadav5Shivam Srivastava6Erdem Cuce7Intesaaf Ashraf8Dan Dobrotă9Department of Mechanical Engineering, Mahatma Jyotiba Phule Rohilkhand University, Bareilly, 243006, IndiaDepartment of Mechanical Engineering, Mahatma Jyotiba Phule Rohilkhand University, Bareilly, 243006, IndiaArchitecture, Planning & Energy Efficiency, CSIR-Central Building Research Institute, Roorkee, 247667, Uttarakhand, India; Corresponding author.Mechanical Engineering Department, Jamia Millia Islamia, Jamia Nagar, Okhla, New Delhi, Delhi, 110025, IndiaDepartment of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi ArabiaDepartment of Mechanical Engineering, Mahatma Jyotiba Phule Rohilkhand University, Bareilly, 243006, IndiaDepartment of Mechanical Engineering, Mahatma Jyotiba Phule Rohilkhand University, Bareilly, 243006, IndiaDepartment of Mechanical Engineering, Faculty of Engineering and Architecture, Recep Tayyip Erdogan University, Zihni Derin Campus, 53100, Rize, Turkey; Center for Research Impact & Outcome, Chitkara University, Rajpura, 140401, Punjab, India; University Centre for Research and Development, Chandigarh University, Mohali, Punjab, 140413, India; Department of Mechanical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IndiaMechanical Engineering Department, UCL, London, WC1E, United KingdomFaculty of Engineering, Department of Industrial Engineering and Management, Lucian Blaga University of Sibiu, 550024, Sibiu, RomaniaThis research comprehensively examines the influence of the V-shaped rib angle of attack on the thermal and hydraulic efficacy of microchannel heat sinks (MCHS), employing Computational Fluid Dynamics (CFD) simulations over Reynolds numbers ranging from 100 to 900. The primary innovation of this investigation resides in the methodical analysis of the impacts of varying rib angles, specifically from 35° to 90°, on both heat transfer and flow resistance within the MCHS framework. The findings indicate that a reduced angle of attack, notably 35°, markedly improves thermal performance, as evidenced by the Nusselt number (Nu) achieving a value of 13.81 at a Reynolds number of 300, in contrast to a mere 8.12 at 90°. This enhancement in thermal transfer is ascribed to the more effective turbulence produced at lower angles, which optimizes convective heat transfer while minimizing excessive resistance. Importantly, this study also underscores the dual effect of rib angle on flow dynamics, as diminished angles elevate friction factor (f), necessitating increased energy input for fluid movement—friction factor at a Reynolds number of 300 were recorded at 0.0465 for 35° and 0.0288 for 90°, thereby validating the compromise between heat transfer and flow resistance. This research offers a novel perspective that while elevated rib angles (approaching 90°) mitigate hydraulic resistance, they concurrently reduce the enhancement of heat transfer, thereby accentuating the necessity for an optimized rib angle to achieve equilibrium between thermal and hydraulic performance.http://www.sciencedirect.com/science/article/pii/S2214157X24017155Microchannel heat sinkVortex generatorHeat transfer enhancementCFD simulationCoolant fluid |
| spellingShingle | Naushad Ali Injamamul Haque Tabish Alam Tauseef Uddin Siddiqui Mushtaq Ahmad Ansari Jagmohan Yadav Shivam Srivastava Erdem Cuce Intesaaf Ashraf Dan Dobrotă Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribs Case Studies in Thermal Engineering Microchannel heat sink Vortex generator Heat transfer enhancement CFD simulation Coolant fluid |
| title | Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribs |
| title_full | Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribs |
| title_fullStr | Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribs |
| title_full_unstemmed | Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribs |
| title_short | Numerical investigation on heat transfer and flow mechanism in microchannel heat sink having V shape ribs |
| title_sort | numerical investigation on heat transfer and flow mechanism in microchannel heat sink having v shape ribs |
| topic | Microchannel heat sink Vortex generator Heat transfer enhancement CFD simulation Coolant fluid |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24017155 |
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