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Thermal instability in compressible fluids in the presence of rotation and magnetic field

Journal Article · · J. Math. Anal. Appl.; (United States)
The thermal instability of compressible fluids pervaded by a uniform rotation and a uniform magnetic field, separately, is considered. For (Cp/g)..beta.. less than 1, with Cp, g, and ..beta.. denoting the specific heat at constant pressure, the acceleration due to gravity, and the uniform temperature gradient, respectively, the system is shown to be stable. The magnetic field as well as rotation introduces oscillatory modes in thermal instability of compressible fluids, which are completely missing for (Cp/g)..beta.. greater than 1 in the absence of rotation or magnetic field. The sufficient conditions which do not allow overstable modes are obtained.
Research Organization:
Himachal Pradesh Univ., Simla, India
OSTI ID:
7316329
Journal Information:
J. Math. Anal. Appl.; (United States), Journal Name: J. Math. Anal. Appl.; (United States) Vol. 60:1; ISSN JMANA
Country of Publication:
United States
Language:
English