Investigation on Pressure-tapping Methods of Long Waist Cone Flow meter Using CFD Simulation
Differential pressure (DP) flow meters are playing an increasingly important role in multiphase flow in petroleum industry. The long waist cone flow meter, as a new type of DP flow meter, is introduced in this paper. And its flow field in a horizontal pipe of 50mm diameter is numerically simulated with Computational Fluid Dynamics (CFD), in search of the optimum pressure-tapping method. The results of numerical simulations indicate that the long waist cone flow meter has the merits of the annular channel flow meters by forming an annular flow in annular channel region, which makes it possible to improve the repeatability and accuracy of measurement. The high pressure port at the ID upstream of the cones entrance section and the low pressure port at the middle of annular channel region and 3D downstream of the cones exit section are the optimum pressuretapping methods. The relative error of discharge coefficient is within ±0.5％. This investigation will provide a theoretical and design basis for the development of new DP flow meters.
Long Waist Cone Flow Meter Pressure-tapping Methods CFD Acceleration Pressure Loss
WEI Can TAN Chao DONG Feng YU Xuelian
Tianjin Key Laboratory of Process Measurement and Control, School of Electrical Engineering and Automation Tianjin University, Tianjin 300072, China
国际会议
The 7th International Symposium on Measurement Techniques for Multiphase Flows(第七届国际多相流测试技术会议)
天津
英文
342-349
2011-09-17（万方平台首次上网日期，不代表论文的发表时间）