摘要
为了探究添加HTAB下不同稠密粗细固体颗粒固液两相流的流动特征,采用直径为10 mm的不锈钢管作为实验管道,对影响固液两相流阻力特性的主要因素进行了研究。结果表明,影响固液两相流阻力特性的主要因素为固体质量浓度和固体颗粒粒径。通过改变固体质量浓度和颗粒粒径,观察添加表面活性剂对固液两相流的减阻特性影响情况,发现在相同表面活性剂质量分数以及颗粒粒径不变的情况下,摩擦阻力系数随着固体质量分数的增大而增大;在相同表面活性剂质量分数以及固体质量浓度不变的情况下,摩擦阻力系数随着颗粒粒径的增大而增大。
For an investigation of the flow characteristics of solid-liquid flows with HTAB,with stainless steel pipe with a diameter of 10 mm used as the experimental pipe,a research has thus been conducted on the main factors affecting the resistance characteristics of solid-liquid flows.The experimental results show that solid mass concentration and solid particle size are the main factors which affect the resistance characteristics of solid-liquid flows.By changing the solid mass concentration and particle size,the effects of surfactant on drag reduction characteristics of solid-liquid flows can be observed.It is found that the friction coefficient increases positively with that of the solid mass fraction under the same surfactant mass fraction and particle size.Meanwhile,the friction resistance coefficient increases positively with that of the particle size under the same surfactant mass fraction and solid mass concentration.
作者
申正辉
蔡书鹏
戴杰
彭绍府
SHEN Zhenghui;CAI Shupeng;DAI Jie;PENG Shaofu(College of Mechanical Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)
出处
《湖南工业大学学报》
2021年第3期68-73,共6页
Journal of Hunan University of Technology
关键词
固液两相流
固体质量浓度
固体颗粒粒径
HTAB
减阻特性
solid-liquid flow
solid mass concentration
solid particle size
hexadecyl trimethyl ammonium bromide(HTAB)
drag reduction characteristics
