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Article information
2014 , Volume 19, ¹ 2, p.20-32
Grigoryev Y.N., Ershov I.V.
Critical Reynolds numbers in supersonic Couette flow of vibration excited diatomic gas
Supersonic 2D-Couette flow of vibration excited diatomic gas was investigated in the framework of nonlinear energy theory for hydrodynamic stability. The corresponding spectral problem for critical Reynolds numbers Recr defining possible origin of laminar-turbulent transit was calculated using collocation method and QZ-algorithm. It was shown that in supersonic range of the calculated values of Recr may be within two orders of magnitude higher than similar values for subsonic Mach numbers.
[full text]
Keywords: energy theory, hydrodynamic stability, two-temperature gas dynamics equations, critical Reynolds number, collocation method, QZ-algorithm
Author(s):
Grigoryev Yurii Nikolaevich
Dr. , Professor
Position: General Scientist
Office: Federal Research Center for Information and Computational Technologies
Address: 630090, Russia, Novosibirsk, Ac. Lavrentiev ave., 6
Phone Office: (383) 330 87 45
E-mail: grigor@ict.nsc.ru
Ershov Igor Valerievich
Dr. , Professor
Position: Professor
Office: Novosibirsk State Agrarian University
Address: 630039, Russia, Novosibirsk, Dobrolyubova, 160
Phone Office: (383) 349-13-95
E-mail: i_ershov@ngs.ru
SPIN-code: 5245-8688
Bibliography link:
Grigoryev Y.N., Ershov I.V. Critical Reynolds numbers in supersonic Couette flow of vibration excited diatomic gas // Computational technologies. 2014. V. 19. ¹ 2. P. 20-32
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