Calculation of Water Hammer Wave Velocity in Mineral Hydrotransport Containing Gas
Mineral hydrotransport is becoming a competitive technology in mining industry, in which the damage of the water hammer pressure is the principal unsafe factor of the pipeline system, so calculation of the pressure wave velocity is the basic problem in slurry water hammer analysis. Considering the entrained gas in practical slurry transport pipelines, the formulations of water hammer wave velocities in pseudo-homogeneous and non-homogeneous gas-solid-liquid flows were derived based on the continuity and momentum equations. Moreover, the effects of the main parameters of the mixtures on the wave velocities were numerically discussed, and the validity of the formulations was verified by experimental data. It was found that the wave velocities were mainly influenced by the composition of slurries, especially, sensitively to the gas contents, and the calculating results were more accurate when considering the presence of free gas in slurries.
hydrotransport multiphase flow water hammer pressure wave velocity
YANG Lin XIONG Deguo
College of Mechanical and Electrical Engineering, Chongqing Jiaotong University, Chongqing 400074, C College of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454030, Henna, Chin
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
2664-2668
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）