Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Physics of Fluids
29 (1986), S. 146-154
ISSN:
1089-7666
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Using Braginskii's two fluid equations, the stability of resistive ballooning modes is examined in the presence of parallel thermal conduction, anomalous electron viscosity, and radial thermal conductivity. A generalized set of coupled second-order differential equations in φ and ψ is derived in ballooning space and is solved to obtain analytical solutions in two interesting frequency regimes, SCs/ qR (very-much-less-than) ||ω|| (very-much-less-than) Cs/ qR and ||ω|| (very-much-greater-than) Cs/qR. It is shown that the anomalous thermal transport term excites the new m=1 resistive ballooning mode (||ω|| (very-much-greater-than) Cs/qR) with a large growth rate. The excitation of the m=2 type (or Δ' driven) mode, on the other hand, is found to be strongly influenced by both anomalous electron viscosity and radial thermal conduction. Finally, the additional effect of parallel electron thermal conduction is shown to give new resistive ballooning modes with significantly large growth rates varying as fractional powers of anomalous electron viscosity and classical thermal conductivity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.865969
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