DAMPING OF SOUND WAVES BY BULK VISCOSITY IN REACTING GASES Page No: 4897-4906

Miguel H. Ibáñez and Pedro L. Contreras

Keywords: Viscosity, sound waves, damping, hydrogen plasma, reacting gas

Abstract: The very long-standing problem of sound waves propagation in fluids is reexamined. In particular, from the analysis of the wave damping in reacting gases following the work by Einstein (1929), it is found that the damping due to the chemical reactions occurs nonetheless the second (bulk) viscosity introduced by Landau and Lifshitz (1987) is zero. The simple but important case of a recombining Hydrogen plasma is examined.



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