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

Caizhe Hao1, Xiaoming Song1, *, Zhining Jia1

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 this Special Issue: EFD and Heat Transfer)

Fluid Dynamics & Materials Processing 2019, 15(4), 391-401.


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.


Cite This Article

Hao, C., Song, X., Jia, Z. (2019). Influence of the Hole Chamfer on the Characteristics of a Multi-hole Orifice Flowmeter. FDMP-Fluid Dynamics & Materials Processing, 15(4), 391–401.


This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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