Abstract
Water bell which resulted from the equilibrium between surface tension and centrifugal acceleration was found by Felix Savart in 1833 for the first time. To investigate the effects of surfactant on water bell formation, we took photographs of the water bells both of distilled water and surfactant including water with high-speed video camera. Then, we analyzed them. From these, it was found that the surface area of the water bell at same jet velocity became small when the surfactant was added and the surface shape at same jet velocity became very stable when the surfactant was added.
