Numerical and Experimental Study of Coriolis Flowmeter Based on Fluid-structure Interaction

doi:10.11885/j.issn.1674-5086.2022.11.27.01

Abstract

Abstract: The vibration characteristics of the Coriolis mass flowmeter in the fluid-structure coupling state were studied in order to solve the metering error problem. Taking a typical CMF300 Coriolis mass flowmeter in a pipeline station as an example, the fluid-structure coupling modal vibration analysis and experimental study of Coriolis flowmeter are carried out by using ANSYS finite element method. The results are as follows: 1) the calculated natural frequency of the second order mode is the excited frequency of Coriolis mass flowmeter, and the natural frequency of the sixth order mode is the Coriolis force frequency; 2) the excitation frequency of finite element modal analysis is 80.043 Hz, and that of experimental test is 83.820 Hz; 3) the excitation frequency and driving frequency of CMF300 are tested, and the experimental results are in good agreement with the finite element model; 4) the numerical model and modal test method can obtain the actual natural frequencies of different Coriolis mass flowmeters at each station. The research conclusion provides a theoretical basis for eliminating the external interference to the metering error of the flowmeter.

Key words: Coriolis, mass flowmeter, modal analysis, numerical calculation, experiment study

CLC Number:

XI Zhandong, DENG Yong, XIONG Ming, ZHAO Huaigang, ZHOU Zhaoming. Numerical and Experimental Study of Coriolis Flowmeter Based on Fluid-structure Interaction[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2025, 47(3): 170-178.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2022.11.27.01

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