Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular Winglets
Passive methods using vortex generators (VGs) to enhance heat transfer have been a concern of researchers in recent decades. This study is intended to investigate the strength of the vortex generated by VGs by trying to reduce the pressure drop in the flow. The present work also takes into account t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Fluids |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-5521/6/1/43 |
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| author | Syaiful Monica Pranita Hendraswari M.S.K. Tony S.U. Maria F. Soetanto |
| author_facet | Syaiful Monica Pranita Hendraswari M.S.K. Tony S.U. Maria F. Soetanto |
| author_sort | Syaiful |
| collection | DOAJ |
| description | Passive methods using vortex generators (VGs) to enhance heat transfer have been a concern of researchers in recent decades. This study is intended to investigate the strength of the vortex generated by VGs by trying to reduce the pressure drop in the flow. The present work also takes into account the influence of the vortex intensity on the improvement of heat transfer, which can be indicated by the low value of the synergy angle. Experiments were carried out in the current investigation to validate the results of the numerical simulations in the Reynolds number range of 3102 to 16,132. The study results indicate that the observed heat transfer coefficients from the experimental and simulation results have a similar tendency with relatively small errors. A reduction in pressure drop is observed with the use of perforated concave rectangular winglets (PCRWs) against the nonperforated ones although there was a slight decrease in heat transfer improvements. |
| first_indexed | 2024-03-09T04:30:33Z |
| format | Article |
| id | doaj.art-2e67a8b611764de393c3f0e008a3c99f |
| institution | Directory Open Access Journal |
| issn | 2311-5521 |
| language | English |
| last_indexed | 2024-03-09T04:30:33Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fluids |
| spelling | doaj.art-2e67a8b611764de393c3f0e008a3c99f2023-12-03T13:35:06ZengMDPI AGFluids2311-55212021-01-01614310.3390/fluids6010043Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular WingletsSyaiful0Monica Pranita Hendraswari1M.S.K. Tony S.U.2Maria F. Soetanto3Mechanical Engineering Department, Diponegoro University, Semarang 50275, IndonesiaMechanical Engineering Department, Diponegoro University, Semarang 50275, IndonesiaMechanical Engineering Department, Diponegoro University, Semarang 50275, IndonesiaMechanical Engineering Department, Bandung State Polytechnic, Bandung 40012, IndonesiaPassive methods using vortex generators (VGs) to enhance heat transfer have been a concern of researchers in recent decades. This study is intended to investigate the strength of the vortex generated by VGs by trying to reduce the pressure drop in the flow. The present work also takes into account the influence of the vortex intensity on the improvement of heat transfer, which can be indicated by the low value of the synergy angle. Experiments were carried out in the current investigation to validate the results of the numerical simulations in the Reynolds number range of 3102 to 16,132. The study results indicate that the observed heat transfer coefficients from the experimental and simulation results have a similar tendency with relatively small errors. A reduction in pressure drop is observed with the use of perforated concave rectangular winglets (PCRWs) against the nonperforated ones although there was a slight decrease in heat transfer improvements.https://www.mdpi.com/2311-5521/6/1/43vortex intensitysynergy angleheat transferpressure drop |
| spellingShingle | Syaiful Monica Pranita Hendraswari M.S.K. Tony S.U. Maria F. Soetanto Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular Winglets Fluids vortex intensity synergy angle heat transfer pressure drop |
| title | Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular Winglets |
| title_full | Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular Winglets |
| title_fullStr | Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular Winglets |
| title_full_unstemmed | Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular Winglets |
| title_short | Heat Transfer Enhancement inside Rectangular Channel by Means of Vortex Generated by Perforated Concave Rectangular Winglets |
| title_sort | heat transfer enhancement inside rectangular channel by means of vortex generated by perforated concave rectangular winglets |
| topic | vortex intensity synergy angle heat transfer pressure drop |
| url | https://www.mdpi.com/2311-5521/6/1/43 |
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