Abstract: An experimental device for alcohol-water periodical flow is introduced,the experimental phenomenon is described and the experimental data are analyzed.Based on the data,we depict graphics with computer software.Through repeated experiments and analyses,some oscillation laws of the alcohol-water periodical flow,which are not same as the oscillation laws of past saline-water,are shown.

Key words: periodical flow, liquid volume, diameter of hole, alcohol, length of hole, tim curves cross