Numerical simulation and visual display of air flow pattern in goaf
LI Zong-xiang
HAI Guo-zhi
QIN Shu-yu
Abstract：The technology of finite element computer numerical simulation and viusal display has been used to thoroughly study the air flow pattern and its calculation in goaf. The equations of two dimentionnal fixed-constant air-flow-field are solved. Resulted from above achievements, the isograms of air pressure distribution and flow line are plotted, therefore the air pressure distribution and air flowing condition can be quickly and directly reflected. Emphases are put on the discussions of the in-and-out changing conditions of air leakage from coal face to goaf. An equation has been obtained to express the relationship between qL and Q, that is，qL =aQ2.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 76-80 )