The Algorithm Research of Ventilation Network Based on the Node Pressure
Network wind distribution algorithm is always an important content of the ventilation network compu-ting study, the speed of network computing by computer is restricted by network wind distribution algorithm. Due to the calculation of path and accelerated iterative factor, the path method and circuit method what have been used hava a complex program, and computed for a long time to the large-scale network. Gives an algorithm of ventilation network based on the node pressure, which concern node pressure with air quantity of branch and windage. Firstly, it changes the pressure drop function to the upstream extremity and down stream pressure drop function of air quantity of branch, then substitutes it into the node flow balance equation and get the node pres-sure equations, finally, obtained the node the node pressure. Depending on the application, we can see this meth-od avoids calculation of path and accelerated iterative factor. And it is excellent in selecting initial point random-ly, few literations and converging quickly. It has great significance to the ventilation network research.
node pressure ventilation network network solution
FAN Jun LI Jing LI Xiao-feng CHU Dong-li
School of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000 China
国际会议
The 2nd International Conference on Mine Safety and Environment Protection(第二届采矿、安全与环境保护国际会议)
西安
英文
42-45
2011-10-10（万方平台首次上网日期，不代表论文的发表时间）