Abstract
COMSOL is used to establish a flow field pipeline model, design and optimize flow detection, and analyze and study acoustic intensity, pressure signal and other parameters. According to the circular pipe test system used in the experiment, the flow velocity analysis model of the steady and constant flow field in the circular pipe was theoretically constructed using the finite element method. The numerical analysis results show that the flow rate in the pipeline obtained in the experiment is the average flow rate of the fluid at the section of the test location, and the test value is 0.63% different from the theoretical value.
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