Simulating the Effect of Release of Pressure and Dust Lifting on Coal Dust Explosions
Conference object, Peer reviewed
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Dispersion of accumulated layers of combustible dust by turbulent flow or shock waves ahead of a propagating flame can play an important role for explosion propagation in coal mines. In 1924, Greenwald and Wheeler investigated this process in a series of large-scale dust explosion experiments, performed in a 750 feet long experimental gallery. In the present paper, these experiments are simulated with the computational fluid dynamics code DESC (Dust Explosion Simulation Code), using a simple empirical model to describe the process of dust lifting.
Presented at: Twenty-first International Colloquium on the Dynamics of Explosions and Reactive Systems (ICDERS), Poitiers, 23-27 July 2007