Baroclinic Instability

Looking at the temperature of the fluid
and the current at the same time

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Water tank
External diameter : 15cm
Internal diameter : 7cm

The cooling element for the inner side was an aluminum rod. A beaker was cutted and used for the outer wall of the working fluid. Acrylic board was used for the outermost wall, which was made a square shape to avoid light refraction.

Working fluid
water
 
Visualization
Liquid crystal capsules were dispersed in the water for visualization.
Two slit light sources were used to avoid casting a shadow from the aluminum rod.
 
Experiment Process
The aluminum rod in the center was directly cooled by the thermo-module, and the water in the outer area was heated with a heating element, and stirred using a pump.