Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped fins
This study numerically investigates turbulent convective heat transfer (HT) in a rectangular channel enhanced with fins and grooves using the finite element method and the standard k–ε turbulence model. The novelty lies in the combined evaluation of rectangular, trapezoidal, and triangular grooves b...
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-07-01
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| Series: | Open Physics |
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| Online Access: | https://doi.org/10.1515/phys-2025-0174 |
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| author | Menni Younes Kaid Noureddine Larguech Samia Alshammari Badr M. Kolsi Lioua |
| author_facet | Menni Younes Kaid Noureddine Larguech Samia Alshammari Badr M. Kolsi Lioua |
| author_sort | Menni Younes |
| collection | DOAJ |
| description | This study numerically investigates turbulent convective heat transfer (HT) in a rectangular channel enhanced with fins and grooves using the finite element method and the standard k–ε turbulence model. The novelty lies in the combined evaluation of rectangular, trapezoidal, and triangular grooves by varying the b/c ratio from 1.0 to 0, along with a systematic optimization of plus (+) and flat fin heights. Among six groove configurations, the b/c = 0.75 trapezoidal groove produced the highest temperature increase (ΔT = T
out − T
inlet) of 16.54% improvement over the baseline ungrooved channel. Through additional optimization, raising both fin types to 1.50 h was found to provide the optimal thermal performance with an outlet temperature of 51.17°C and a 146.88% improvement in ΔT compared to the baseline. These results highlight the large synergistic effect of groove geometry and fin height optimization, yielding an effective design strategy for enhancing HT in solar heat exchanger devices. |
| format | Article |
| id | doaj-art-b430d76546654fbe9ac2fc0e7f369a96 |
| institution | DOAJ |
| issn | 2391-5471 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Physics |
| spelling | doaj-art-b430d76546654fbe9ac2fc0e7f369a962025-08-20T02:41:11ZengDe GruyterOpen Physics2391-54712025-07-0123113021710.1515/phys-2025-0174Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped finsMenni Younes0Kaid Noureddine1Larguech Samia2Alshammari Badr M.3Kolsi Lioua4Energy and Environment Laboratory, Institute of Technology, University Center Salhi Ahmed Naama (Ctr. Univ. Naama), P.O. Box 66, Naama, 45000, AlgeriaEnergy and Environment Laboratory, Institute of Technology, University Center Salhi Ahmed Naama (Ctr. Univ. Naama), P.O. Box 66, Naama, 45000, AlgeriaDepartment of Electrical Engineering, College of Engineering, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi ArabiaDepartment of Electrical Engineering, College of Engineering, University of Ha’il, Ha’il, 81451, Saudi ArabiaDepartment of Mechanical Engineering, College of Engineering, University of Ha’il, Ha’il, 81451, Saudi ArabiaThis study numerically investigates turbulent convective heat transfer (HT) in a rectangular channel enhanced with fins and grooves using the finite element method and the standard k–ε turbulence model. The novelty lies in the combined evaluation of rectangular, trapezoidal, and triangular grooves by varying the b/c ratio from 1.0 to 0, along with a systematic optimization of plus (+) and flat fin heights. Among six groove configurations, the b/c = 0.75 trapezoidal groove produced the highest temperature increase (ΔT = T out − T inlet) of 16.54% improvement over the baseline ungrooved channel. Through additional optimization, raising both fin types to 1.50 h was found to provide the optimal thermal performance with an outlet temperature of 51.17°C and a 146.88% improvement in ΔT compared to the baseline. These results highlight the large synergistic effect of groove geometry and fin height optimization, yielding an effective design strategy for enhancing HT in solar heat exchanger devices.https://doi.org/10.1515/phys-2025-0174heat exchangersfinsbafflesgroovesturbulent flowsforced convection |
| spellingShingle | Menni Younes Kaid Noureddine Larguech Samia Alshammari Badr M. Kolsi Lioua Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped fins Open Physics heat exchangers fins baffles grooves turbulent flows forced convection |
| title | Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped fins |
| title_full | Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped fins |
| title_fullStr | Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped fins |
| title_full_unstemmed | Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped fins |
| title_short | Finite element analysis of turbulent thermal enhancement in grooved channels with flat- and plus-shaped fins |
| title_sort | finite element analysis of turbulent thermal enhancement in grooved channels with flat and plus shaped fins |
| topic | heat exchangers fins baffles grooves turbulent flows forced convection |
| url | https://doi.org/10.1515/phys-2025-0174 |
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