Study on the formation mechanism of shock wave in process of coal and gas outburst
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Abstract
According to the research results of motion parameters of coal-gas flow, analyzed the formation mechanism of shock waves at different states of coal-gas flow in the process of coal and gas outburst, and briefly described the two possible cases of outburst shock wave formation and their formation conditions in the process of coal and gas outburst, and then pointed out that a high degree of under-expanded coal-gas flow was the main reason for the formation of a highly destructive shock wave. The research results improved the shock wave theory in coal and gas outburst.
Keywords
coal and gas outburst coal-gas flow outlet pressure shock wavePreview
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References
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© The Editorial Office of Journal of Coal Science and Engineering (China) and Springer-Verlag GmbH 2009