The transient heat transfer process is studied in rarefied gas confined between two stationary concentric cylinders. The inner cylinder (filament) is subjected to a periodically heating-cooling cycle. The energy transfer is modeled with a continuous model based on Navier-Stokes-Fourier (NSF) equations of motion and energy transfer and with a statistical Direct Simulation Monte Carlo Method (DSMC). Numerical results for the temperature, thermodynamic pressure and pressure difference between thermodynamic pressure and radial stress tensor component are obtained for different circular frequencies of heating cooling cycle of filament and for different filament radii. The pressure variation at the end of any local heating stage of heating-cooling cycle is close to the value of equilibrium thermodynamic pressure. The results are applicable in designing the pulsed Pirani gauges.
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12 October 2017
APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES: 9th International Conference for Promoting the Application of Mathematics in Technical and Natural Sciences - AMiTaNS’17
21–26 June 2017
Albena, Bulgaria
Research Article|
October 12 2017
Numerical simulation of the pulsed Pirani gauges
P. Gospodinov;
P. Gospodinov
a)
Institute of Mechanics, Bulgarian Academy of Sciences
, Acad. G. Bonchev str., bl. 4, 1113 Sofia, Bulgaria
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D. Dankov;
D. Dankov
b)
Institute of Mechanics, Bulgarian Academy of Sciences
, Acad. G. Bonchev str., bl. 4, 1113 Sofia, Bulgaria
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V. Roussinov;
V. Roussinov
c)
Institute of Mechanics, Bulgarian Academy of Sciences
, Acad. G. Bonchev str., bl. 4, 1113 Sofia, Bulgaria
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M. Mironova
M. Mironova
d)
Institute of Mechanics, Bulgarian Academy of Sciences
, Acad. G. Bonchev str., bl. 4, 1113 Sofia, Bulgaria
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b)
Corresponding author: [email protected]
AIP Conf. Proc. 1895, 080003 (2017)
Citation
P. Gospodinov, D. Dankov, V. Roussinov, M. Mironova; Numerical simulation of the pulsed Pirani gauges. AIP Conf. Proc. 12 October 2017; 1895 (1): 080003. https://doi.org/10.1063/1.5007397
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