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On the applicability of the fluid approach in the description of electromagnetic wave scattering in plasmas

A G Sitenko1995年Plasma Physics and Controlled FusionIF 2.2出版社

Kinetic and fluid treatments of nonlinear wave interactions (wave mixing and electromagnetic wave scattering) in plasmas are compared and the difference between the two approaches is discussed. The nonlinear kinetic equation for cold plasmas is shown to yield the same expression for the current that induces scattered waves as the one obtained in the fluid approximation. Thus, Bindslev's conclusion (ibid., vol. 35, p. 1615 (1993)) that the fluid approach is inapplicable to the description of electromagnetic wave scattering in plasmas turns out to be erroneous.

日本語訳

プラズマにおける非線形波動相互作用(波動混合および電磁波散乱)の運動論的および流体的取り扱いを比較し、両アプローチの差異について議論する。冷プラズマに対する非線形運動論方程式は、流体近似で得られるものと同じ散乱波を誘起する電流の式を与えることが示される。したがって、流体アプローチはプラズマ中の電磁波散乱の記述には適用できないというBindslevの結論(同上、第35巻、p. 1615(1993年))は誤りであることが判明する。

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