Simulation and experimental research on humidity field of fully mechanized mining face based on finite element method

doi:10.16265/j.cnki.issn1003-3033.2018.11.005

Abstract

Abstract: In order to fully understand the humidity field in the underground fully-mechanized mining face, this paper USES COMSOL Multiphysics numerical simulation software to simulate the air flow and humidity distribution in the fully-mechanized mining face,and makes a comparative analysis with the field humidity measurement. The results show that the maximum humidity area of the fully mechanized mining face is located near the coal cutter (the humidity value is close to 98%), there is a high humidity area with ribbon at the back of the coal cutter close to the coal wall, and the humidity value of outlet position is higher than that of inlet position, that the overall deviation of the simulated humidity value from the measured humidity value is within 1.8%, and that the numerical simulation method is accurate and reliable, which can be used to study the humidity field in the underground fully-mechanized mining face.

Key words: fully mechanized coal mining face, COMSOL Multiphysics, gas flow, humidity field, field test

CLC Number:

X936

GUO Shaoshuai, JING Guoxun, WANG Yuansheng, ZHOU Fei. Simulation and experimental research on humidity field of fully mechanized mining face based on finite element method[J]. China Safety Science Journal, 2018, 28(11): 28-34.

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