Hydromagnetic Stability of Spiral Flows

概要

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In the present paper an attempt has been made to investigate the effects of the axial magnetic field and the axial currents on the stability of spiral flows of a non-dissipative system. A sufficient condition of stability is obtained when all the four components, namely, the swirl velosity, axial velocity, axial magnetic field and axial currents are present. In particular, the case, when the axial velosity is not present, is discussed in detail and it has been shown that the sufficient condition for stability obtained by Howard and Gupta is valid only for oscillatory modes and further the necessary condition for the existence of non-oscillatory neutral modes is obtained.
社団法人日本物理学会の論文
1969-06-05