Linear Stability Analysis of Thermal Convection in an Infinitely Long Vertical Rectangular Enclosure in the Presence of a Uniform Horizontal Magnetic Field | Zendy

Takashi Kitaura | Zendy; Toshio Tagawa | Zendy

Open Access

Linear Stability Analysis of Thermal Convection in an Infinitely Long Vertical Rectangular Enclosure in the Presence of a Uniform Horizontal Magnetic Field

Author(s) -

Takashi Kitaura,

Toshio Tagawa

Publication year - 2014

Publication title -

journal of fluids

Language(s) - English

Resource type - Journals

eISSN - 2356-7376

pISSN - 2314-6826

DOI - 10.1155/2014/642042

Subject(s) - prandtl number , hartmann number , mechanics , convection , magnetic field , enclosure , thermal , physics , combined forced and natural convection , linear stability , natural convection , square (algebra) , materials science , geometry , mathematics , reynolds number , thermodynamics , nusselt number , instability , engineering , turbulence , telecommunications , quantum mechanics

Stability of thermal convection in an infinitely long vertical channel in the presence of a uniform horizontal magnetic field applied in the direction parallel to the hot and cold walls was numerically studied. First, in order to confirm accuracy of the present numerical code, the one-dimensional computations without the effect of magnetic field were computed and they agreed with a previous study quantitatively for various values of the Prandtl number. Then, linear stability analysis for the thermal convection flow in a square horizontal cross section under the magnetic field was carried out for the case of Pr = 0.025. The thermal convection flow was once destabilized at certain low Hartmann numbers, and it was stabilized at high Hartmann numbers

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