Design of Natural and Forced Air Flows in Mine Ventilation Networks.

New methods are presented for designing natural and forced air flows in complex ventilation networks. The methods are iterative, self-corrective and are distinguished by a high-rate convergence of the successive approximations. The methods may be used both for passive and active ventilation networks with dependent air currents. An example is given which explains the technique of determination of a natural and forced flow of air in an active ventilation network with dependent air currents.