http://repository.iitr.ac.in/handle/123456789/11607| Title: | Flow visualization in turbulent free convection over horizontal smooth and grooved surfaces |
| Authors: | Subudhi, Sudhakar Arakeri J.H. |
| Published in: | International Communications in Heat and Mass Transfer |
| Abstract: | The present paper discusses the flow visualization for turbulent free convection in a tank of water with the bottom surface being a smooth or a grooved surface and the top of the water surface exposed to ambient. The grooved surface is of parallel 90° V-grooves with groove height of 10mm and groove width of 20mm. The experiment is carried out with aspect ratio (AR) of 2.9 and Rayleigh number (Ra) in the range, 1.3×10 7-4×10 7. Here AR is the aspect ratio (= width of fluid layer/height of fluid layer). Heat flux at the bottom surface is from electrical heating. From the pH-dye visualization, interesting flow structures are observed and these structures are analyzed with the help of plumes dynamics and temperature variations with time. © 2011 Elsevier Ltd. |
| Citation: | International Communications in Heat and Mass Transfer (2012), 39(3): 414-418 |
| URI: | https://doi.org/10.1016/j.icheatmasstransfer.2011.12.014 http://repository.iitr.ac.in/handle/123456789/11607 |
| Issue Date: | 2012 |
| Keywords: | Free convection Plumes V-grooves |
| ISSN: | 7351933 |
| Author Scopus IDs: | 54407504100 35581295800 |
| Author Affiliations: | Subudhi, S., Department of Mechanical Engineering, National Institute of Technology, Calicut, India Arakeri, J.H., Department of Mechanical Engineering, Indian Institute of Science, Bangalore, India |
| Corresponding Author: | Subudhi, S.; Department of Mechanical Engineering, National Institute of Technology, Calicut, India; email: subudhi@nitc.ac.in |
| Appears in Collections: | Journal Publications [ME] |
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