Large-eddy simulation of a turbulent buoyant plume interacting with droplets


Xia, J., Luo, K.H. and Kumar, S. (2007) Large-eddy simulation of a turbulent buoyant plume interacting with droplets In New Trends in Fluid Mechanics Research. Tsinghua University Press and Springer. 745 pp, pp. 103-106.

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Description/Abstract

A dynamic large-eddy simulation methodology is applied to a simplified water-spray fire suppression system to investigate droplet effects on a buoyant gas flame. A hybrid Eulerian-Lagrangian approach is employed for the gas-liquid system. Dynamic subgrid models are included to capture the local and unsteady interactions between the two phases. The effectiveness of changing spray angles on combustion suppression has been investigated. The drag effects of droplets cause significant changes to the flow and flame structures. Dense droplets, in particular, can cut through the reaction zones, causing flame extinction. The high temperature regions associated with reaction zones are suppressed by the spray droplets in all cases.

Item Type: Conference or Workshop Item (Paper)
ISBNs: 9787302158943 (print)
Venue - Dates: 5th International Conference on Fluid Mechanics, 2007-08-15 - 2007-08-19
Subjects:
ePrint ID: 48571
Date :
Date Event
August 2007Published
Date Deposited: 01 Oct 2007
Last Modified: 16 Apr 2017 18:22
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/48571

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