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Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 1.4

ISSN Imprimir: 1940-2503
ISSN On-line: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2013005954
pages 459-471

NUMERICAL SIMULATION OF AN ENCLOSURE FIRE IN A LARGE TEST HALL

Anthony Chun Yin Yuen
School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney 2052, Australia
Guan Heng Yeoh
School of Mechanical and Manufacturing Engineering University of New South Wales, NSW 2052, Australia; Australian Nuclear Science and Technology Organisation (ANSTO), PMB 1, Menai, NSW 2234, Australia

RESUMO

A fully coupled large eddy simulation model that incorporates all essential sub-grid-scale (SGS) turbulence, combustion, and radiation has been developed to simulate the temporal and fluid dynamical effects of the burning of methanol in a square pan with a heat release rate of 0.9 MW in a large test hall. A scalar dissipation conditioned SGS combustion model is introduced to account for the non-equilibrium combustion caused by microscopic mixing processes. Numerical results are obtained through the two-step predictor and corrector explicit marching scheme. Predicted transient temperatures are compared against experimental measured data at different spatial locations. Reasonable agreement has been achieved. The effects of different turbulent Prandtl numbers (and the interrelated Schmidt numbers) on the transient temperature development are assessed.


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