Onset of thermally induced gas convection in mine wastes
A mine waste dump in which active oxidation of pyritic materials occurs can generate a large amount of heat to form convection cells. We analyze the onset of thermal convection in a two-dimensional, infinite horizontal layer of waste rock filled with moist gas, with the top surface of the waste dump open to the atmosphere and the bedrock beneath the waste dump forming a horizontal and impermeable boundary. Our analysis shows that the thermal regime of a waste rock system depends heavily on the atmospheric temperature, the strength of the heat source and the vapor pressure.
Citation Information
Publication Year | 1997 |
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Title | Onset of thermally induced gas convection in mine wastes |
DOI | 10.1016/S0017-9310(96)00281-5 |
Authors | N. Lu, Y. Zhang |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | International Journal of Heat and Mass Transfer |
Index ID | 70019738 |
Record Source | USGS Publications Warehouse |