Instability of Tbermomagnetic Convection under Microgravity -Dropsbaft experiment and linear stability analysis

Abstract

We carried out a microgravity experiment of thermomagnetic convection induced in a double cylinder, the aspect ratios of which were 0.44 and 0.53. The dissipative patterns formed in the cylinder were investigated by measuring temperatures with 20 thermocouples set in the cir­cumferential direction along the outer cylinder. 8 and 10 rolls were formed for A= 0.44 and 0.53, respectively. We also investigated the pattern formations by the linear stability theory. The result of the calculation agreed with the experimental result.