水利学报Issue(9)：1064-1070,7.
梭锥管混浊流体分离装置流场PIV测试及分析
Test and analysis on flow field in the shuttle-conical tube turbid flow hydraulic separation Device by PIV techniques
摘要
Abstract
Particle image uelocimotrg (PIV) was used to test the water and sediment flow velocity field in the Shuttle-conical Tube Turbid Flow hydraulic separation Device (SCT) with two cases. The distributions of sediment flow velocity vector and the velocity diagram at various planes in different locations of the SCT have been offered. The results indicate that the test results are consistent with the physical experimental phenomenon and theoretical analysis. The SCT is divided into many sedimentation spaces by multilayer cone rings so that the sedimentation distance of SCT is shorter than the common device without any cone ring and all the sedimentation spaces are independent from each other. The turbid flow with suspension flow into the SCT, and sediment free settlement distance has been shortened, and in the water-sediment separation space composed by adjacent two cone rings,the sediment flow is downward along the upper sur-face of one cone ring, and the clear water flow is upward along the lower surface of the other cone ring. Then the water and sediment flow respectively along different path, the former flows into the clear water passage arranged at the sides of the wall, and the latter flows into the sand drainage channel at the center of the SCT. In the process of the separation and drainage, the clear water doesn’t mix and interfere with sediment flow so that the separation efficiency of water & sediment by the SCT has been improved.关键词
水沙两相流/水力分离/PIV技术/流场Key words
water & sediment two-phase flow/hydraulic turbid water separation device/PIV/flow field分类
建筑与水利引用本文复制引用
李琳,杨海华,王苗,邱秀云..梭锥管混浊流体分离装置流场PIV测试及分析[J].水利学报,2013,(9):1064-1070,7.基金项目
国家自然科学基金项目（510091175）；新疆水利水电工程重点学科基金项目 （）
