Abstract
A large number of terrestrial experiments have been conducted on Marangoni convection in a liquid bridge to date. The attainable size of the bridge and thus the attainable Marangoni number are seriously limited in the terrestrial experiments. In the present study, a series of experiments was performed in a low temperature environment in order to suppress the evaporation of fluid, while realizing a large temperature difference between the both ends of the bridge to attain a high Marangoni number in spite of a small size of the bridge. Special attention was paid upon the flow field up to for beyond the critical Marangoni number. It was found that the flow field could be categorized into eight regimes; from steady to turbulent-like flows. After the pulsating and rotating oscillatory flows emerged, the flow exhibited another types such as, chaotic and turbulent convections. They were distinguished by applying the Fourier analysis and the pseudo-phase-space reconstruction from the time series of the surface temperature.
