ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The propagation of linear sound and thermal waves in a reacting fluid, in which the heating and cooling processes can be represented by a heat-loss functionL(ρ, T, ξ is studied. A complex dispersion relation is found, from which the phase velocity and the scale length for damping (or amplification), of the above two-wave mode are calculated Wave amplification may occur in reacting locally stable fluids. Results are applied to a hydrogen plasma model assumed to be heated at a non-specified constant rate and cooled by recombination, excitation, and ionization by collisions, and free-free transitions. The phase velocity $$\tilde l$$ , the scale-length for damping $$\tilde \upsilon$$ , and the relevant relaxation times are calculated as functions of the dimensionless frequency $$\tilde \omega$$ , for temperatures ranging from those at which the hydrogen plasma is neutral to those at which it becomes completely ionized.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00641615
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