Non-Linear Interaction of Harmonic Waves in a Quasi-Isentropic Flow of Magnetic Gas

• Autorzy: Perelomova Anna

Identyfikatory

DOI

10.24425/aoa.2020.134064

• Języki publikacji: EN

Abstrakty

EN

The diversity of wave modes in the magnetic gas gives rise to a wide variety of nonlinear phenomena associated with these modes. We focus on the planar fast and slow magnetosound waves in the geometry of a flow where the wave vector forms an arbitrary angle θ with the equilibrium straight magnetic field. Nonlinear distortions of a modulated signal in the magnetic gas are considered and compared to that in unmagnetised gas. The case of acoustical activity of a plasma is included into consideration. The resonant three-wave non-collinear interactions are also discussed. The results depend on the degree of non-adiabaticity of a flow, θ, and plasma-β.

Słowa kluczowe

EN

non-linear magnetoacoustics; adiabatical instability; acoustic activity; three-wave interaction

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2020
• Tom: Vol. 45, No. 3
• Strony: 475--481
• Opis fizyczny: Bibliogr. 18 poz., wykr.

Twórcy

autor

Perelomova Anna

• Gdansk University of Technology, Faculty of Applied Physics and Mathematics, Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland

Bibliografia

• 1. Chin R., Verwichte E., Rowlands G., Nakariakov V. M. (2010), Self-organisation of magnetoacoustic waves in a thermal unstable environment, Physics of Plasmas, 17 (32): 107-118.
• 2. Field G. B. (1965), Thermal instability, The Astrophysical Journal, 142: 531-567, doi: 10.1086/148317.
• 3. Freidberg J. P. (1987), Ideal magnetohydrodynamics, Plenum Press, New York.
• 4. Kharkevich A. A. (1965), Nonlinear and parametric phenomena in radio engineering, Iliffe Books.
• 5. Krall N. A., Trivelpiece A. W. (1973), Principles of plasma physics, McGraw Hill, New York.
• 6. Krishna Prasad S., Banerjee D., Van Doorsselaere T. (2014), Frequency-dependent damping in propagating slow magneto-acoustic waves, The Astrophysical Journal, 789 (2): 118, doi: 10.1088/0004-637x/789/2/118.
• 7. Landau L. D., Lifshitz E. M. (1987), Fluid mechanics (2nd ed.), Pergamon, New York.
• 8. Landau L. D., Lifshitz E. M., Pitaevskii L. P. (1984), Electrodynamics of continuous media (2nd ed.), Pergamon, Oxford.
• 9. Leble S., Perelomova A. (2018), The dynamical projectors method: hydro and electrodynamics, CRC Press.
• 10. Molevich N. E. (2001), Sound amplification in inhomogeneous flows of nonequilibrium gas, Acoustical Physics, 47 (1): 102-105, doi: 10.1134/1.1340086.
• 11. Nakariakov V. M., Mendoza-Briceńo C. A., Ibáńez M. H. (2000), Magnetoacoustic waves of small amplitude in optically thin quasi-isentropic plasmas, Astrophysical Journal, 528 (2): 767-775, doi: 10.1086/308195.
• 12. Osipov A. I., Uvarov A. V. (1992), Kinetic and gas-dynamic processes in nonequilibrium molecular physics, Soviet Physics Uspekhi, 35 (11): 903-923.
• 13. Parker E. N. (1953), Instability of thermal fields, The Astrophysical Journal, 117: 431-436, doi: 10.1086/145707.
• 14. Perelomova A. (2016), On the nonlinear distortions of sound and its coupling with other modes in a gaseous plasma with finite electric conductivity in a magnetic field, Archives of Acoustics, 41 (4): 691-699, doi: 10.1515/aoa-2016-0066.
• 15. Perelomova A. (2018a), Magnetoacoustic heating in a quasi-isentropic magnetic gas, Physics of Plasmas, 25 (4): 042116, doi: 10.1063/1.5025030.
• 16. Perelomova A. (2018b), Magnetoacoustic heatingin nonisentropic plasma caused by different kinds of heating-cooling function, Advances in Mathematical Physics, 2018: Article ID 8253210, 12 pages, doi: 10.1155/2018/8253210.
• 17. Perelomova A. (2019), Propagation of initially saw-tooth periodic and impulsive signals in a quasi-isentropic magnetic gas, Physics of Plasmas, 26 (5): 052304, doi: 10.1063/1.5093390.
• 18. Rudenko O. V., Soluyan S. I. (1977), Theoretical foundations of nonlinear acoustics, Plenum, New York.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).