Abstract
The magnetothermal wind is induced by the magnetic (Kelvin) force in two coaxial circular pipes with both thermal and magnetic gradients. When the one-turn electric coil as a source of the magnetic (Kelvin) force is placed at the upper end of the heated region of the inner pipe, the flow direction of the magnetothermal wind changes from the upward flow to downward flow with the increase of magnetic strength. The present study noticed the reverse flow of a magnetothermal wind under various Rayleigh numbers. Our numerical results showed that the critical magnetic strength caused the reverse flow was almost independent of Rayleigh number.
