TY - JOUR N2 - 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. L1 - http://journals.pan.pl/Content/117158/PDF/aoa.2020.134064.pdf L2 - http://journals.pan.pl/Content/117158 PY - 2020 IS - No 3 EP - 481 DO - 10.24425/aoa.2020.134064 KW - non-linear magnetoacoustics KW - adiabatical instability KW - acoustic activity KW - three-wave interaction A1 - Perelomova, Anna PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 45 DA - 2020.08.25 T1 - Non-Linear Interaction of Harmonic Waves in a Quasi-Isentropic Flow of Magnetic Gas SP - 475 UR - http://journals.pan.pl/dlibra/publication/edition/117158 T2 - Archives of Acoustics ER -