COMSOL-based analysis of the effect of shear rate on ultrasonic flow measurement
In order to analyse the factors affecting the ultrasonic flow measurement results and improve the accuracy of ultrasonic flow measurement,it is necessary to study the effect of polymer solution shear rate on the fluid flow pattern and ultrasonic flowmeter received sound pressure,the use of multi-physics field finite element software COMSOL to establish the ultrasonic flowmeter three-dimensional model for simulation,and analyse the effect of shear rate by the background flow velocity curve of the fluid domain and the ultrasonic re-ceiver waveform diagram.The results show that in other conditions remain unchanged,with the increase of shear rate fluid flow tends to turbulence,ultrasonic flowmeter receiver acous-tic pressure difference between the maximum and minimum values of 1%,which can be ig-nored on the ultrasonic flowmeter measurement results of the impact of small.
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维普
