Application of computational gas dynamics methods for calculating losses during rotation of solids in low vacuum conditions
2021 ◽
Vol 2057
(1)
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pp. 012019
Keyword(s):
Abstract 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.
2021 ◽
Vol 1795
(1)
◽
pp. 012042
Keyword(s):
2014 ◽
Vol 611
◽
pp. 325-331
2014 ◽
Vol 42
(1)
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pp. 154-161
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1996 ◽
Vol 82
(11)
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pp. 893-898
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