Cawley, Michael F. and McBride, P. (2004) Flow visualization of free convection in a vertical cylinder of water in the vicinity of the density maximum. International Journal of Heat and Mass Transfer, 47 (6-7). pp. 1175-1186. ISSN 0017-9310

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Abstract

Free convection in a vertical cylinder of water is studied in the vicinity of the density maximum at 4 °C. Results are presented both from cooling curve measurements (using a series of thermistors along the central axis of the cylinder) and from flow visualization experiments (using particle image velocimetry), and a comparison is made with simulations. The reversal of the overall flow direction as the temperature crosses the maximum density region gives rise to a plateau feature in the cooling curve, which may be explained by the formation of a rising toroidal structure along the column boundary. This feature effectively diverts flow away from the inner region of the cylinder, resulting in a temporary cessation of convective cooling within this region.

Item Type:	Article
Additional Information:	P.McB. gratefully acknowledges financial support from Enterprise Ireland, the state funding agency for pure research.
Keywords:	Flow visualization; free convection; vertical cylinder of water; density maximum;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	9944
Identification Number:	https://doi.org/10.1016/j.ijheatmasstransfer.2003.09.028
Depositing User:	Dr. Michael Cawley
Date Deposited:	18 Sep 2018 13:51
Journal or Publication Title:	International Journal of Heat and Mass Transfer
Publisher:	Elsevier
Refereed:	Yes
Funders:	Enterprise Ireland (EI)
URI:	https://www.sciencedirect.com
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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