Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banks
Numerical models have been developed by commercial package Fluent 6.3 to simulate the air flow through single dimple, simple, and dimpled louvers in low and medium Reynolds numbers. Experiments have also been conducted to measure the temperature and heat transfer in these geometries. Heat transfer a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2015-03-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814015573825 |
| _version_ | 1818497078708404224 |
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| author | Farhad Sangtarash Hossein Shokuhmand |
| author_facet | Farhad Sangtarash Hossein Shokuhmand |
| author_sort | Farhad Sangtarash |
| collection | DOAJ |
| description | Numerical models have been developed by commercial package Fluent 6.3 to simulate the air flow through single dimple, simple, and dimpled louvers in low and medium Reynolds numbers. Experiments have also been conducted to measure the temperature and heat transfer in these geometries. Heat transfer augmentation of 8% has been observed by implying dimples on louver at the same mass flow rate. For accurate investigation of the effect of dimple, a single dimpled surface has been modeled numerically and experimentally. The simulation revealed that these heat transfer and temperature augmentations occur due to existence of a circulation region created by dimple. Additionally, the effects of louver’s thermal resistance on temperature distribution over the louver surface have been considered to gain the actual contours. Continuous temperature gradients have been observed over the louver surface with the highest temperature at the base of the louver and the lowest temperature at the middle of the louver. Louver efficiency has been introduced to assess the dimpled louver performance for low and medium Reynolds numbers. It has been observed that dimpled geometry has satisfactory louver efficiency. Good agreement has been observed between experimental and numerical models. |
| first_indexed | 2024-12-10T18:40:52Z |
| format | Article |
| id | doaj.art-5117caa887bc48b88527dc381a6941b6 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-10T18:40:52Z |
| publishDate | 2015-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-5117caa887bc48b88527dc381a6941b62022-12-22T01:37:39ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402015-03-01710.1177/168781401557382510.1177_1687814015573825Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banksFarhad SangtarashHossein ShokuhmandNumerical models have been developed by commercial package Fluent 6.3 to simulate the air flow through single dimple, simple, and dimpled louvers in low and medium Reynolds numbers. Experiments have also been conducted to measure the temperature and heat transfer in these geometries. Heat transfer augmentation of 8% has been observed by implying dimples on louver at the same mass flow rate. For accurate investigation of the effect of dimple, a single dimpled surface has been modeled numerically and experimentally. The simulation revealed that these heat transfer and temperature augmentations occur due to existence of a circulation region created by dimple. Additionally, the effects of louver’s thermal resistance on temperature distribution over the louver surface have been considered to gain the actual contours. Continuous temperature gradients have been observed over the louver surface with the highest temperature at the base of the louver and the lowest temperature at the middle of the louver. Louver efficiency has been introduced to assess the dimpled louver performance for low and medium Reynolds numbers. It has been observed that dimpled geometry has satisfactory louver efficiency. Good agreement has been observed between experimental and numerical models.https://doi.org/10.1177/1687814015573825 |
| spellingShingle | Farhad Sangtarash Hossein Shokuhmand Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banks Advances in Mechanical Engineering |
| title | Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banks |
| title_full | Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banks |
| title_fullStr | Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banks |
| title_full_unstemmed | Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banks |
| title_short | Experimental and numerical investigation of heat transfer, temperature distribution, and louver efficiency on the dimpled louvers fin banks |
| title_sort | experimental and numerical investigation of heat transfer temperature distribution and louver efficiency on the dimpled louvers fin banks |
| url | https://doi.org/10.1177/1687814015573825 |
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