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Page d'accueil ICHMT DL Année en cours Archives Comité de direction Centre international pour le transfert de chaleur et de masse


DOI: 10.1615/ICHMT.2012.CHT-12.170
pages 279-297

A. C. Y. 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

Richard Kowk Kit Yuen
Department of Building and Construction, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong

J. C. K. Tang
School of Mechanical and Manufacturing Engineering, University of New South Wales Sydney 2052, Australia


A fully-coupled Large Eddy Simulation (LES) model which incorporates all essential subgrid-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. Effects of different turbulent Prandtl numbers (and Schmidt numbers which they are interrelated) on the transient temperature development are assessed.

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