Open Access

ARTICLE

Influence of the Hole Chamfer on the Characteristics of a Multi-hole Orifice Flowmeter

by Caizhe Hao, Xiaoming Song, Zhining Jia

¹ Chengde Petroleum College, Hebei Instrument & Meter Engineering Technology Research Center, Hebei Instrument & Meter Industry Technology Research Institute, Chengde, 067000, China.

* Corresponding Author: Xiaoming Song. Email: .

(This article belongs to the Special Issue: EFD and Heat Transfer)

Fluid Dynamics & Materials Processing 2019, 15(4), 391-401. https://doi.org/10.32604/fdmp.2019.07771

Abstract

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.

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