Simulation of the Gas Flow Gyrometer Using the Meshless Techniques
2022 29th Saint Petersburg International Conference on Integrated Navigation Systems (ICINS)(2022)
Abstract
The aim of this work is simulation of hydrodynamic processes in a gas flow gyrometer to identify its parameters and optimize its construction and geometry. For the first time, the meshless technique based on the semi-analytical R-function method is applied to solve computational fluid dynamics (CFD) problems in an arbitrarily shaped gyrometer cavity. This method allows all prescribed boundary conditions to be satisfied exactly on the whole boundary. With R-functions, it is possible to construct approximate CFD solutions with prescribed values and derivatives at specified locations. An effective simulation was performed for some geometries of the gas jet flow gyrometer. They were compared and demonstrated satisfactory concordance with results obtained experimentally and by using FEM simulations. The meshless CFD modeling of the gas flow gyrometer gives the possibility to build the new approach for the evaluation of optimum geometrical and thermophysical parameters of the device.
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Key words
gas flow gyrometer,computational fluid dynamics
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