5:15 PM - 6:30 PM
[MIS24-P03] Axisymmetric flows and non-axisymmetric phenomena in a cylindrical tank with a rotating bottom
Keywords:rotating flow, laboratory experiments, axisymmetry breaking, boundary layers
In the terrestrial and planetary atmospheres, even under axisymmetric enviroenments, the symmetry is often broken to cause various non-axisymmetric phenomena. Such non-axisymmetric phenomena can be realized in a simple laboratory experiment in a cylindrical tank which is filled with water and whose bottom rotates rapidly.
These phenomena have been investigated by many researchers, mainly by laboratory experiments and by theoretical analyses. On the other hand, the same problem has been investigated using numerical calculations. However, due to the restirictions of the computational resources, the parameter range of the calculated situation has been apart from those used in the laboratory experiments, where the boundary layers play important roles in the interesting phenomena.
Recently, the numerical calculations with closer parameters are performed, and in some cases, we can discuss the boundary layers formed in the numerical calculations. We compare the structures of the numerical results and those obtaied in labotaroty experiments and theoretically.
These phenomena have been investigated by many researchers, mainly by laboratory experiments and by theoretical analyses. On the other hand, the same problem has been investigated using numerical calculations. However, due to the restirictions of the computational resources, the parameter range of the calculated situation has been apart from those used in the laboratory experiments, where the boundary layers play important roles in the interesting phenomena.
Recently, the numerical calculations with closer parameters are performed, and in some cases, we can discuss the boundary layers formed in the numerical calculations. We compare the structures of the numerical results and those obtaied in labotaroty experiments and theoretically.