Influence of the cross-sectional shapes of roadway and duct outlet on heat transfer at working face with auxiliary ventilation

Abstract：The cross sections of the roadway and the duct are usually supposed to be regularly shaped for easy mesh formation and simple expression of discretization equations in Cartesion coordination system when computational fluid dynamics is applied to simulate the underground thermal environmental conditions. The influence of cross-sectional shapes of the roadway and the duct outlet on the simulation results of heat transfer are examined when computational fluid dynamics is applied to simulate the thermal environment at working face with auxiliary ventilation.

Keyword：sensible heat; latent heat; computational fluid dynamics; wetness factor