Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tube
This research employs three-dimensional simulations to investigate the behavior of pure water and nanofluids consisting of Al2O3 and TiO2 particles within a sinusoidal mini-tube as a single-phase suspension. The impact of a mini-tube's sinusoidal amplitude and wavelength on laminar flow propert...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | International Journal of Thermofluids |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666202724004373 |
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| _version_ | 1841555655951908864 |
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| author | Mohammad Rahimi Baghbadorani Omid Ali Akbari |
| author_facet | Mohammad Rahimi Baghbadorani Omid Ali Akbari |
| author_sort | Mohammad Rahimi Baghbadorani |
| collection | DOAJ |
| description | This research employs three-dimensional simulations to investigate the behavior of pure water and nanofluids consisting of Al2O3 and TiO2 particles within a sinusoidal mini-tube as a single-phase suspension. The impact of a mini-tube's sinusoidal amplitude and wavelength on laminar flow properties is investigated in Reynolds numbers ranging from 100 to 600. The results present that performance evaluation criterion of mini-tube is more proper in the amplitude of 3 mm and wave length of 16 mm. Performance evaluation criterion of sinusoidal shaped mini-tube with pure water in comparison with straight mini-tube, shows that sinusoidal mini-tube has the proper performance which the performance evaluation criterion is greater than 1. Proper selected mini-tube is also used with nanofluids. In this simulation, proposed nanofluids are water-Al2O3 and water-TiO2 nanofluids with volume fractions of 2 % and 4 %. The results of this investigation reveal that using nanofluids improves performance evaluation criterion. Also, comparison of two different nanoparticles shows that Al2O3 nanoparticles have better performance in comparison with TiO2 nanoparticles. By changing geometrical parameters as amplitude and wave length and finding proper mini-tube, it is seen that performance evaluation criterion is increased two times in comparison with straight tube. Also, using nanofluid in proper mini-tube in comparison with pure water in the same mini-tube, leads to improvement of cooling and thermal performance up to of 20 %, in the different Reynolds numbers. |
| format | Article |
| id | doaj-art-1ef21770b961420ea54b3c632d7b69b6 |
| institution | Kabale University |
| issn | 2666-2027 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj-art-1ef21770b961420ea54b3c632d7b69b62025-01-08T04:53:33ZengElsevierInternational Journal of Thermofluids2666-20272025-01-0125100998Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tubeMohammad Rahimi Baghbadorani0Omid Ali Akbari1Department of Mechanical Engineering, Isfahan University of Technology, Isfahan 84156-83111, IranDepartment of Mechanical Engineering, Faculty of Engineering, Arak University, Arak 38156-88349, Iran; Corresponding author at: Department of Mechanical Engineering, Faculty of Engineering, Arak University, Arak 38156-88349, Iran.This research employs three-dimensional simulations to investigate the behavior of pure water and nanofluids consisting of Al2O3 and TiO2 particles within a sinusoidal mini-tube as a single-phase suspension. The impact of a mini-tube's sinusoidal amplitude and wavelength on laminar flow properties is investigated in Reynolds numbers ranging from 100 to 600. The results present that performance evaluation criterion of mini-tube is more proper in the amplitude of 3 mm and wave length of 16 mm. Performance evaluation criterion of sinusoidal shaped mini-tube with pure water in comparison with straight mini-tube, shows that sinusoidal mini-tube has the proper performance which the performance evaluation criterion is greater than 1. Proper selected mini-tube is also used with nanofluids. In this simulation, proposed nanofluids are water-Al2O3 and water-TiO2 nanofluids with volume fractions of 2 % and 4 %. The results of this investigation reveal that using nanofluids improves performance evaluation criterion. Also, comparison of two different nanoparticles shows that Al2O3 nanoparticles have better performance in comparison with TiO2 nanoparticles. By changing geometrical parameters as amplitude and wave length and finding proper mini-tube, it is seen that performance evaluation criterion is increased two times in comparison with straight tube. Also, using nanofluid in proper mini-tube in comparison with pure water in the same mini-tube, leads to improvement of cooling and thermal performance up to of 20 %, in the different Reynolds numbers.http://www.sciencedirect.com/science/article/pii/S2666202724004373Three-dimensional sinusoidal mini-tubenumerical simulationNusselt numberpressure dropthermal performance coefficientnanofluid |
| spellingShingle | Mohammad Rahimi Baghbadorani Omid Ali Akbari Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tube International Journal of Thermofluids Three-dimensional sinusoidal mini-tube numerical simulation Nusselt number pressure drop thermal performance coefficient nanofluid |
| title | Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tube |
| title_full | Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tube |
| title_fullStr | Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tube |
| title_full_unstemmed | Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tube |
| title_short | Numerical investigation of heat transfer and pressure drop of water-nanofluid flow in a three-dimensional wavy mini-tube |
| title_sort | numerical investigation of heat transfer and pressure drop of water nanofluid flow in a three dimensional wavy mini tube |
| topic | Three-dimensional sinusoidal mini-tube numerical simulation Nusselt number pressure drop thermal performance coefficient nanofluid |
| url | http://www.sciencedirect.com/science/article/pii/S2666202724004373 |
| work_keys_str_mv | AT mohammadrahimibaghbadorani numericalinvestigationofheattransferandpressuredropofwaternanofluidflowinathreedimensionalwavyminitube AT omidaliakbari numericalinvestigationofheattransferandpressuredropofwaternanofluidflowinathreedimensionalwavyminitube |