Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Numerical Simulations of Shock Waves in Viscous Carbon Dioxide Flows Using Finite Volume Method. / Kustova, E.; Алексеев, Илья Владимирович.
в: Vestnik St. Petersburg University: Mathematics, Том 53, № 3, 01.07.2020, стр. 344-350.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Numerical Simulations of Shock Waves in Viscous Carbon Dioxide Flows Using Finite Volume Method
AU - Kustova, E.
AU - Алексеев, Илья Владимирович
PY - 2020/7/1
Y1 - 2020/7/1
N2 - Abstract: An efficient numerical tool for studying shock waves in viscous carbon dioxide flows is proposed. The developed theoretical model is based on the kinetic theory formalism and is free of common limitations such as constant specific heat ratio, approximate analytical expressions for thermodynamic functions and transport coefficients. The thermal conductivity, viscosity and bulk viscosity coefficients are expressed in terms of temperature, collision integrals and internal energy relaxation times. Precomputed in the wide temperature range thermodynamic functions and transport coefficients are implemented to the numerical code which is used for the simulations of the shock wave structure. Including the bulk viscosity to the kinetic model results in the increasing shock width and improves the agreement with experimental data.
AB - Abstract: An efficient numerical tool for studying shock waves in viscous carbon dioxide flows is proposed. The developed theoretical model is based on the kinetic theory formalism and is free of common limitations such as constant specific heat ratio, approximate analytical expressions for thermodynamic functions and transport coefficients. The thermal conductivity, viscosity and bulk viscosity coefficients are expressed in terms of temperature, collision integrals and internal energy relaxation times. Precomputed in the wide temperature range thermodynamic functions and transport coefficients are implemented to the numerical code which is used for the simulations of the shock wave structure. Including the bulk viscosity to the kinetic model results in the increasing shock width and improves the agreement with experimental data.
KW - shock wave, carbon dioxide, finite volume method
KW - shock wave
KW - carbon dioxide
KW - finite volume method
UR - http://www.scopus.com/inward/record.url?scp=85090050172&partnerID=8YFLogxK
U2 - 10.1134/S1063454120030024
DO - 10.1134/S1063454120030024
M3 - Article
AN - SCOPUS:85090050172
VL - 53
SP - 344
EP - 350
JO - Vestnik St. Petersburg University: Mathematics
JF - Vestnik St. Petersburg University: Mathematics
SN - 1063-4541
IS - 3
ER -
ID: 62081663