Analysis of Water Entry Form and Water Noise of Continuous Falling Water Droplets
Taking three continuously falling water droplets as the research object,and taking different time intervals,heights and particle sizes of water droplets as variables,the morphology and noise of water droplets entering water were studied.It is found that when the falling time interval T=0.2 s,there will be a phenomenon of"pressed into the bubble";when T=0.2 s and T=0.4 s,the water noise is positively correlated with the momentum per unit area.When T=0.3 s,the water noise increases first and decreases to about half when the momentum per unit area reaches 16.2 kg/(m2·s).The noise of continuous falling water droplets into water is divided into"pressure bubble noise"and"water gas burst noise".The time domain diagram of the former is sine wave,with low frequency and high energy.The latter presents irregular diffusion,with high frequency and half of the sound pressure value of the former.
continuous falling water dropletswater-entry formwater noiseunit area momentum
万方数据
维普
