Abstract
In this paper we describe and compare two unstably stratified turbulent flows in a channel forced by pressure gradient and wall shear, respectively, with the aim of evidencing similarities and differences in the heat transfer and flow dynamics. In both cases we find that the combination of the mean flow with the thermal forcing produces an increase of the friction coefficient and a non–monotonic dependence of the heat transfer on the mean flow strength. This behaviour might be relevant for the prediction of the light–wind conditions in weather forecast or, more in general, for mixed convection applications.
Original language | English |
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Title of host publication | Progress in Turbulence VIII - Proceedings of the iTi Conference in Turbulence 2018 |
Editors | Ramis Örlü, Alessandro Talamelli, Joachim Peinke, Martin Oberlack |
Publisher | Springer |
Pages | 47-54 |
Number of pages | 8 |
ISBN (Electronic) | 978-3-030-22196-6 |
ISBN (Print) | 978-3-030-22195-9 |
DOIs | |
Publication status | Published - 28 Aug 2019 |
Event | iTi 2018 Conference on Turbulence VIII 2018 - Centro Residenziale Universitario di Bertinoro, Bertinoro, Italy Duration: 5 Sep 2018 → 7 Sep 2018 Conference number: 8 |
Publication series
Name | Springer Proceedings in Physics |
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Volume | 226 |
ISSN (Print) | 0930-8989 |
ISSN (Electronic) | 1867-4941 |
Conference
Conference | iTi 2018 Conference on Turbulence VIII 2018 |
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Abbreviated title | iTi 2018 |
Country/Territory | Italy |
City | Bertinoro |
Period | 5/09/18 → 7/09/18 |