Airway size is one of the key factors to calculate correct resistance for ventilation models in the absence of a pressure quantity survey. Use of traditional estimation methods such as design size or time-consuming underground spot measurements can produce poor airflow simulation results, particularly if there are frequent size variations in tunnels. The merits of using an algorithm to automatically convert three-dimensional survey information to correct airway size is examined, and the effect on model accuracy is observed.
CITATION:Michelin, F, Stewart, C, Griffith, M D and Andreatidis, T, 2019. Calibrating model airway size and resistance with survey asbuilt data, in Proceedings Australian Mine Ventilation Conference 2019, pp 363368 (The Australasian Institute of Mining and Metallurgy: Melbourne).