VORTEX MEASURER OF MASS AND VOLUMETRIC FLOW RATE 

Akchurin Roman Rinatovich, mastergraduate student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail:iit@pnzgu.ru
Trofimov Aleksey Anatol'evich, doctor of technical sciences, professor, sub-department of information and measurement technology and metrology, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: iit@pnzgu.ru

681.12.08 

10.21685/2307-5538-2020-1-7 

Background. Using the modern methods of computer analysis prior to a fabrication allows to evaluate, as soon as possible, if one of the methods is efficient or no, to delete unpractical variants and begin to develop a future device. The research object is the vortex fiber-optic measurer of flow rate with Bragg arrays used there as the sensing elements.
Materials and methods. The following methods were using during the objective researching: integral and differential calculus, mathematical simulation, finite element method, mechanic theory of the deformed body. During the sensors construction designing were using such CAD-systems like COMPAS, SolidWorksSimulation and Ansys. A functional scheme of the measurement transducer for a measuring of mass and volumetric flow rate as well as a density of a liquid and gaseous medium was proposed.
Results. As a result of the vortex formation processes simulation design factors of a flow body and deformation fragment were detected. Oscillation frequency values of the deformation fragment depending on the volumetric flow rate and media density were obtained.
Conclusions. The force values, influenced on the deformation fragment, which were detected as a result of the research made it possible to evaluate a value of its deformation and necessary sensitivity level. 

vortex flowmeter, bluff body, frequency of failure whirlwinds, vortex path of the Karman