Open AccessApplication of computational gas dynamics methods for calculating losses during rotation of solids in low vacuum conditions
Author(s) -
A A Barkova,
А. S. Pugachuk
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2057/1/012019
Subject(s) - aerodynamics , mechanics , flywheel , rotation (mathematics) , accumulator (cryptography) , rotor (electric) , rotational speed , power (physics) , basis (linear algebra) , environmental science , physics , mathematics , thermodynamics , mechanical engineering , classical mechanics , engineering , geometry , algorithm
On the basis of a mathematical model with distributed parameters, a method for determining aerodynamic losses during high-frequency rotation of a flywheel accumulator is developed. The power of losses due to friction of the rotor against the air is determined as a function of the pressure in the chamber. A comparative analysis of the aerodynamic losses under low vacuum conditions at various pressures of the working medium and the data obtained on the basis of empirical dependences and presented in the scientific literature on this topic is carried out. The maximum difference between the loss power values is no more than 25%. The data deviation decreases as the pressure in the chamber decreases.