Thermal instability in compressible fluids in the presence of rotation and magnetic field |
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Authors: | RC Sharma |
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Institution: | Department of Mathematics, Himachal Pradesh University, Simla 171005, India |
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Abstract: | The thermal instability of compressible fluids pervaded by a uniform rotation and a uniform magnetic field, separately, is considered. For , with Cp, g, and β 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 in the absence of rotation or magnetic field. The sufficient conditions which do not allow overstable modes are obtained. |
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