Numerical Analysis of Gas Flow in Active Longwall Goaf
This paper describes the development of a threedimensional computational fluid dynamic (CFD) model to study the aerodynamics of an active goaf. The aim of this work is to develop a better understanding of gas flow of an active goaf so that an optimized ventilation and drainage system can be developed and implemented. Two 3D CFD models of the goaf were developed. The first model used the standard features of the FLUENT CFD code to simulate the goaf gas flow. The second model was developed by using specially written external functions to model the effect of porosity on the aerodynamics of the goaf. The results show a more realistic continuous distribution of porosity, the suction effect of the goaf holes and their influence on the distribution of pressure, and the concentration of oxygen and carbon dioxide.
Numerical analysis CFD Gas flow Porosity Diffusion Goaf
XIE Jun XUE Sheng CHENG Weimin WANG Gang
CSIRO Earth Science and Resource Engineering, PO Box 883, Kenmore, QLD 4069 Australia College of Resources and Environmental Engineering, Shandong University of Science and Technology, Q CSIRO Earth Science and Resource Engineering, PO Box 883, Kenmore, QLD 4069 Australia College of Res
国际会议
2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)
青岛
英文
220-230
2010-10-15（万方平台首次上网日期，不代表论文的发表时间）