Sensitivity analysis of relevant parameters in complicated mine ventilation network by numerical test^①

来源期刊：中南大学学报(英文版)2005年第2期

论文作者：王从陆 吴超 王卫军

文章页码：205 - 208

Key words：mine ventilation; sensitivity analysis; numerical test; parameters adjustment

Abstract: Depending on the numerical test approach on a computer, the relationships among relevant parameters,eg branch number, node number, mesh number, computation accuracy, preliminary value of airflow rate, iteration number, computation time and convergence in a mine ventilation network analysis, were investigated based on 5 mine ventilation systems. The results show that a higher computation accuracy greatly influences the iteration number. When the accuracy reaches 10^-6m³·s^-1for solving a complicated mine ventilation network, the running time is too long though a high-speed computer is used. The preliminary value of airflow rate in the range of 1 100 m³·s^-1has little effects the iteration number. The structure of network also has some effect on the iteration number.