CAJ | 학술논문

采用有限元计算机数值模拟，结合图形显示技术，深入研究了采煤工作面采空区的风流移动规律及计算问题，求解了二维定常流场方程，并以图形方式绘出风压分布等值线和流线，迅速直观地反映出采空区流场风压的分布和风流流动状况.重点讨论了工作面向采空区漏风的入、出变化情况，得到工作面漏向采空区的风量qL与工作面风量Q的关系qL＝aQ2.
채용유한원계산궤수치모의，결합도형현시기술，심입연구료채매공작면채공구적풍류이동규률급계산문제，구해료이유정상류장방정，병이도형방식회출풍압분포등치선화류선，신속직관지반영출채공구류장풍압적분포화풍류류동상황.중점토론료공작면향채공구루풍적입、출변화정황，득도공작면루향채공구적풍량qL여공작면풍량Q적관계qL＝aQ2.
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.