TY -的A2江Bangyou盟——张,薛博AU -高,陈建良盟,任Jing-zhang AU -王,春夏PY - 2020 DA - 2020/10/29 TI -的特点和影响因素的分析瓦斯爆炸在标题的脸上SP - 8871865六世- 2020 AB -为了准确掌握瓦斯爆炸的特点和影响因素在标题的脸上,瓦斯爆炸的数学模型确定。根据实际大小标题的煤矿,一个3 d几何模型建立了长度为100米,和点火能量的影响,气体爆炸当量的瓦斯爆炸特征标题脸上进行了分析。结果显示如下。(1)瓦斯爆炸的数值模拟的数学模型可以准确模拟瓦斯爆炸及其传播过程。时空的步长对仿真结果有很大的影响。数值模拟的网格间距确定矿井瓦斯爆炸0.1和时间步长确定是0.001秒。(2)点火能量有限对瓦斯爆炸特性的影响。它只对瓦斯爆炸过程有一定的影响,但没有对冲击波的超压的影响。点火能量越大,爆炸反应速度越快,和最大超压略有增加。点火能量增加到一定值时,激波和最大超压峰值的时间都是稳定的。 The ignition energy has little effect on gas explosion characteristics when an explosion accident occurs underground with a large amount of gas accumulation. (3) The gas explosion equivalent has a great influence on the overpressure of gas explosion shock wave. The higher the explosion equivalent is, the greater the pressure is, and the peak value of the shock wave overpressure increases with the explosion equivalent as a power function. The research results have important guiding significance for the research and development of new technology for prevention and control of gas explosion. SN - 1070-9622 UR - https://doi.org/10.1155/2020/8871865 DO - 10.1155/2020/8871865 JF - Shock and Vibration PB - Hindawi KW - ER -