January 2024
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Models systems networks in economics technology nature and society
Background. The aim of the work is to implement numerical methods and algorithms in the form of a software package that allows for a parametric study of the "flow tube – liquid" system of a Coriolis flow meter, and to analyze the influence of the shape of the flow tube on the sensitivity of measurements of liquid mass flow parameters. The relevance is due to the need to identify the geometric design of the flow tube with the most acceptable characteristics when pumping highly paraffinic oils. Materials and methods. For the mathematical model, the finite element method and an iterative approach to solving systems of equations based on rigidly coupled coupling were used. A computational algorithm based on linear interpolation and an algorithm that automates the processing of data arrays and the calculation of average time and phase delays have been implemented. The structural and logical diagram of the software complex is presented and described. Results. In the course of computational experiments carried out to study the influence of the flow tube shape on the sensitivity of measurements of the parameters of liquid mass flow as a function of the average time delay using the developed hardware and software complex, it was revealed that the model of a Coriolis flow meter with a radius of curvature of the flow tube of 30° is recommended for use in oil and gas industry as a tube geometry that is less susceptible to waxing and at the same time has sufficient sensitivity for measurement. Conclusions. A software package has been developed and tested. A relationship has been identified between the geometric shape of the flow tube of a Coriolis flow meter and the measurement sensitivity of the device, which is characterized by the fact that at high values of the radius of curvature of the tube, the sensitivity increases compared to straight-tube designs.