矿井立井提升设备活塞风动力效应研究
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摘要
为了研究提升设备运行时产生的活塞风动力效应,基于传统流体力学理论,运用流体力学软件FLUENT建立二维RNG k-ε湍流模型,对提升设备在不同运行状态下井筒内的压力场和流场进行模拟。模拟研究结果表明,提升设备在立井内运行时,立井内活塞风动力效应与相对速度密切相关;提升设备逆风运行时比顺风运行时立井内的活塞风动力效应变化剧烈,且随相对速度的增大,立井内最大风速和最大压差在增大,立井内活塞风动力效应变得更加剧烈。
In order to study the piston wind dynamic effect caused by operating hoist equipment,based on traditional fluid mechanics theory,the two-dimension RNG k-εturbulent flow model was built up by fluid mechanics software to simulate pressure field and fluid field inside shaft under different operation conditions.The simulation results showed that piston wind dynamic effect is closely related to relative velocity;the piston wind dynamic effect varied more dramatically when hoist equipment operated against the wind than following the wind and with the increasing of relative velocity,the maximum wind velocity and the maximum pressure difference were increasing,and the piston wind dynamic effect inside shaft became more severe.
In order to study the piston wind dynamic effect caused by operating hoist equipment,based on traditional fluid mechanics theory,the two-dimension RNG k-εturbulent flow model was built up by fluid mechanics software to simulate pressure field and fluid field inside shaft under different operation conditions.The simulation results showed that piston wind dynamic effect is closely related to relative velocity;the piston wind dynamic effect varied more dramatically when hoist equipment operated against the wind than following the wind and with the increasing of relative velocity,the maximum wind velocity and the maximum pressure difference were increasing,and the piston wind dynamic effect inside shaft became more severe.
引文
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[3]由世俊,薛鹏,张欢.基于动网格的地铁活塞效应非稳态气流模拟[J].天津大学学报(自然科学与工程技术版),2014(2)
[4]田卫明,翁其能,张建伟等.地铁隧道活塞风成风影响因子分析[J].重庆交通大学学报(自然科学版),2012(1)
[5]王文才,魏丁一,赵晓坤.基于FLUENT的矿井巷道活塞风效应研究[J].中国煤炭,2016(9)
[6]王从陆,吴超.基于移动参考框架的矿内运输工具活塞风数值模拟[J].煤炭学报,2007(8)
[7]胡鹏华,张以虎,李先杰等.铀矿井罐笼提升竖井活塞风效应影响研究[J].铀矿冶,2013(4)
[8]王海桥,田峰,施式亮等.矿井井筒提升容器活塞风效应分析及计算[J].湖南科技大学学报(自然科学版),2007(3)
[9]王海桥,田峰,黄俊歆等.矿井井筒提升设备绕流的数值模拟[J].中国安全科学学报,2006(9)
[10]王从陆,吴超,王卫军.活塞风数值模拟及在矿内运输巷道中的应用[J].安全与环境学报,2007(3)
[11]韩占忠,兰小平.流体工程仿真计算机实例与应用[M].北京:北京理工大学出版社,2009