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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/25926

Title: Large eddy simulation of buoyancy-driven natural ventilation-twin-plume flow
Authors: Durrani, Faisal
Cook, Malcolm J.
McGuirk, James J.
Kaye, N.B.
Issue Date: 2013
Publisher: © Taylor & Francis
Citation: DURRANI, F. ... et al., 2013. Large eddy simulation of buoyancy-driven natural ventilation-twin-plume flow. International Journal of Ventilation, 11 (4), pp. 353 - 366.
Abstract: This paper presents results of a Large Eddy Simulation (LES) of buoyancy-driven natural ventilation in which two unequal heat sources are used to drive the flow. The aim of this work was to assess the performance of LES in modelling turbulent thermal plumes in a naturally ventilated enclosure and to analyse their interaction with each other. The sub-grid scales of the flow have been resolved by using the Smagorinsky sub-grid scale model. It was found that LES results for the interface height agree well with the theoretical predictions of Linden and Kaye (2006). However, instead of a step change in temperature, as suggested by theory, there exists a more diffuse interface. The merging height of the two plumes and the volume flow rates in the far field merged plume agreed closely with theoretical predictions. Analysis of the pressure isosurfaces demonstrated the interaction phenomena of the two plumes, the coherent structures and the behaviour of the interface.
Description: Closed access
Version: Published
DOI: 10.1080/14733315.2013.11683993
URI: https://dspace.lboro.ac.uk/2134/25926
Publisher Link: http://dx.doi.org/10.1080/14733315.2013.11683993
ISSN: 1473-3315
Appears in Collections:Closed Access (Aeronautical and Automotive Engineering)

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