TY - EJOU AU - Hao, Caizhe AU - Song, Xiaoming AU - Jia, Zhining TI - Influence of the Hole Chamfer on the Characteristics of a Multi-hole Orifice Flowmeter T2 - Fluid Dynamics \& Materials Processing PY - 2019 VL - 15 IS - 4 SN - 1555-2578 AB - In order to analyze the influence of the hole chamfer on the metering performances of a Multi-hole Orifice Flowmeter and optimize the related orifice structure, a multi-hole orifice flowmeter with DN80 and throttle ratio of 0.45 was considered in the present study. The flow field characteristics were determined in the framework of a CFD technique. The results show that the multi-hole orifice flowmeter with filleting transition around the throttle orifice has higher accuracy in a wide range of the space of parameters, and is more suitable for accurate measurement of fluid in process control. KW - Multi-hole orifice KW - differential pressure KW - chamfer KW - CFD simulation DO - 10.32604/fdmp.2019.07771