Study on underwater two-dimensional exhaust vent mode based on fixed orifice spacing and variable orifice area distribution

The scale parameters of bubbles produced by underwater exhaust influence the effect acoustic insulation. According to dynamic characteristics in process and design criteria equal flow per unit area, two-dimensional equation was established. analytical expressions orifice position geometric device were obtained. finite element models established compare two vent patterns uniform distribution fixed spacing / variable area distribution. verified circulating flume test. simulation experimental results show that mode can effectively control parameters, enhance insulation bubbles.