The effect of flow conditions on the sensitivity of the Coriolis flowmeter

被引：36

作者：

Bobovnik, G ^{[1
]}

Kutin, J ^{[1
]}

Bajsic, I ^{[1
]}

机构：

[1] Univ Ljubljana, Fac Mech Engn, Lab Measurements Proc Engn, SI-1000 Ljubljana, Slovenia

来源：

FLOW MEASUREMENT AND INSTRUMENTATION | 2004年 / 15卷 / 02期

关键词：

Coriolis flowmeter; mass-flow sensitivity; CFD analysis; inlet flow conditions;

D O I：

10.1016/j.flowmeasinst.2003.12.001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 [机械工程];

摘要：

The aim of this paper is to investigate the effect of flow conditions on a Coriolis flowmeter that has a straight and slender measuring tube. The CFD analysis was performed for fully developed, asymmetric triangular and swirl flows introduced at the inlet. The asymmetry and swirl numbers were used to evaluate the resulting velocity field in the measuring tube. In addition, the influence of different inlet-flow conditions oil the sensitivity of the flowmeter was estimated, using the value of the moment that causes the deflection of the tube's first mode shape. The results are presented for a variety of different Reynolds numbers, two frequencies of vibration and three different dimensions of the measuring tube. (C) 2004 Elsevier Ltd, All rights reserved.The aim of this paper is to investigate the effect of flow conditions on a Coriolis flowmeter that has a straight and slender measuring tube. The CFD analysis was performed for fully developed, asymmetric triangular and swirl flows introduced at the inlet. The asymmetry and swirl numbers were used to evaluate the resulting velocity field in the measuring tube. In addition, the influence of different inlet-flow conditions oil the sensitivity of the flowmeter was estimated, using the value of the moment that causes the deflection of the tube's first mode shape. The results are presented for a variety of different Reynolds numbers, two frequencies of vibration and three different dimensions of the measuring tube. (C) 2004 Elsevier Ltd, All rights reserved.

引用

页码：69 / 76

页数：8

共 16 条

[1]

Barua S. N., 1954, Proc. R. Soc. London, Ser. A, V227, P133

[2]

The simulation of Coriolis meter response to pulsating flow using a general purpose FE code [J].