Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Richtmyer-Meshkov instability in a rarefied gas, results of continuum and kinetic numerical simulations. / Kudryavtsev, A. N.; Epstein, D. B.
High Energy Processes in Condensed Matter, HEPCM 2019: Proceedings of the XXVI Conference on High-Energy Processes in Condensed Matter, dedicated to the 150th anniversary of the birth of S.A. Chaplygin. ред. / Vasily Fomin. American Institute of Physics Inc., 2019. 020010 (AIP Conference Proceedings; Том 2125).Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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TY - GEN
T1 - Richtmyer-Meshkov instability in a rarefied gas, results of continuum and kinetic numerical simulations
AU - Kudryavtsev, A. N.
AU - Epstein, D. B.
PY - 2019/7/26
Y1 - 2019/7/26
N2 - The Richtmyer-Meshkov instability in a rarefied gas is numerically simulated using both continuum and kinetic approaches. Continuum simulations based on the Navier-Stokes equations are carried out for different Mach numbers of the incident shock wave Ms = 1.5, 4.0, 8.0; Reynolds numbers Re = 50÷1000 and density ratios across the contact discontinuity ρ2/ρ1 = 2, 3, and 10. The evolution of disturbance amplitude as a function of the problem parameters is investigated. It is obtained that the growth of disturbances is suppressed if the Reynolds number decreases below some critical value. Kinetic simulations are performed by directly solving the Bhatnagar-Gross-Krook (BGK) kinetic equation in the multidimensional phase space. The development of the Richtmyer-Meshkov instability is reproduced with the kinetic approach and close agreement between the results of continuum and kinetic simulations is observed.
AB - The Richtmyer-Meshkov instability in a rarefied gas is numerically simulated using both continuum and kinetic approaches. Continuum simulations based on the Navier-Stokes equations are carried out for different Mach numbers of the incident shock wave Ms = 1.5, 4.0, 8.0; Reynolds numbers Re = 50÷1000 and density ratios across the contact discontinuity ρ2/ρ1 = 2, 3, and 10. The evolution of disturbance amplitude as a function of the problem parameters is investigated. It is obtained that the growth of disturbances is suppressed if the Reynolds number decreases below some critical value. Kinetic simulations are performed by directly solving the Bhatnagar-Gross-Krook (BGK) kinetic equation in the multidimensional phase space. The development of the Richtmyer-Meshkov instability is reproduced with the kinetic approach and close agreement between the results of continuum and kinetic simulations is observed.
UR - http://www.scopus.com/inward/record.url?scp=85070539391&partnerID=8YFLogxK
U2 - 10.1063/1.5117370
DO - 10.1063/1.5117370
M3 - Conference contribution
AN - SCOPUS:85070539391
T3 - AIP Conference Proceedings
BT - High Energy Processes in Condensed Matter, HEPCM 2019
A2 - Fomin, Vasily
PB - American Institute of Physics Inc.
T2 - 26th All-Russian Conference on High Energy Processes in Condensed Matter: Dedicated to the 150th Anniversary of the Birth of S.A. Chaplygin, HEPCM 2019
Y2 - 3 April 2019 through 5 April 2019
ER -
ID: 21254833