摘要
分析尾矿库溃坝泥沙运动特性对溃坝后安全治理措施有重要意义。分析了尾矿坝泥沙体积浓度的不同对于溃决尾矿泥沙在流动过程中的速度场的影响。运用CFD软件建立尾矿坝溃坝的三维几何模拟模型,借助Fluent3D中VOF计算模型模拟尾矿砂、水多相流的流动规律及流动状态,模拟的溃坝流动特性与试验结果相一致,研究结果为尾矿坝的设计与安全监测提供理论依据。
The analysis of the flow characteristics of sand flow surging from tailings dam-break has important significance for safety control measures after dam-break. This paper analyzes how the difference of sand volume con- centration affects the velocity field with in the flow of railings after dam-break. Using the CFD software a three dimension geometry simulation model is established. The flowing regular pattern and states of railings sand, water multiphase flow are simulated with Fluent3Dsoftware VOF calculate model. According to simulation results we can find out that tailing flow feature agrees with the results of experiment. The analysis results provide a theoretical basis and an important reference for tailing dam design and safety monitoring.
出处
《矿冶》
CAS
2015年第5期1-4,12,共5页
Mining And Metallurgy
基金
国家自然科学基金重点项目(51234004)
云南省厅级项目(KKSY201221070)
关键词
尾矿坝溃坝
数值模拟
沙流
tailing dam-break
Fluent
numerical simulation
sand flow
