Title :
Numerical Simulation of Distribution Regularities of Dust Concentration in Fully Mechanized Top-Coal Caving Face
Author :
Niu Wei ; Jiang Zhong´an
Author_Institution :
Civil & Environ. Eng. Sch., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
According to characteristics of fully mechanized top-coal caving face and related survey date, a mathematical model of dust movement was derived from gas-solid two-phase flow theory. Numerical simulation of the dust concentration was made with CFD software FLUENT. The result matches well with the related survey date and shows that most of the dust move with the wind and little disperses at random. Coal cutting is the most important source of dust. Advancing support and top-coal drawing is of the second and third importance. Dust control in fully mechanized top-coal caving face should focus on the place downwind the coal mining machine between 5 and 10 m.
Keywords :
computational fluid dynamics; disperse systems; dust; mining; mining equipment; numerical analysis; two-phase flow; CFD; FLUENT; coal cutting; coal mining machine; disperse system; dust concentration distribution; dust control; dust movement; gas-solid two-phase flow theory; numerical simulation; top-coal caving face; top-coal drawing; Analytical models; Boundary conditions; Computational fluid dynamics; Data analysis; Ducts; Health and safety; Mathematical model; Numerical simulation; Power cables; Solid modeling;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5516021
