Determining the friction factors for underground colliery bord and pillar workings

Abstract

This project was mainly proposed to make available, to the coal mining industry a set of default friction values that could be used with more confidence in network simulation programs, during the project use was made of both underground investigation and CFD parameters on pressure loss and on K-factors and airflow behaviour. K-factors for number of underground scenarios were measured and compared with data that was gathered from an extensive literature study that was performed as part of the project