Algorithms for computer modeling of the “flow tube – liquid” system of a Coriolis flow meter and processing its results

Mathematical modeling of the «flow tube – liquid» system represents a current direction in engineering and scientific practice, since it allows optimizing the design of flow tubes, assessing the influence of various factors, such as pressure, temperature, viscosity and liquid composition on the operation of the system without the need for complex and expensive full-scale experiments. In this regard, this article is aimed at developing algorithms for implementing a mathematical model of the «flow tube – liquid» system of a Coriolis flow meter. The work synthesized an algorithm for developing a numerical model in the multiphysics modeling package COMSOL Multiphysics, which made it possible to increase the reliability of the simulation and reduce the complexity of creation and debugging through the use of the modular principle. A computational algorithm has been developed and a mathematical description of the calculation of the average time delay of signals from Coriolis flow meter sensors has been performed. The algorithm uses a linear interpolation method based on known data points obtained as a result of a computational experiment. An algorithm for running a program in Python using the Comsol API is proposed, which automates the processing of data arrays and the calculation of average time and phase delays. The algorithms are implemented using the UML language in the Enterprise Architect software product. The materials of the article are of practical value for specialists in the field of numerical modeling and optimization of Coriolis flow meter parameters.

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