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在气泡群平衡方程模型的基础上,根据高温尾气在海水中形成的气泡群特点及气液间特定的传热传质过程,建立了高温大气泡群对尾流微气泡的聚并模型,求解了气泡间聚并效率并进行实验验证.结果表明,气泡聚并临界半径为1 mm,半径低于临界半径时,聚并效率随大气泡尺寸增加明显提高;气泡半径高于临界半径时,规律相反.聚并效率随大气泡数密度增大呈台阶式增长.大气泡数密度与尾流微气泡总数密度大致相同时,可达到较理想的聚并消泡效果.
Based on the model of bubble population equilibrium equation, a coalescence model of wake microbubbles based on the characteristics of bubble groups formed in seawater and the specific heat and mass transfer between gas and liquid was established. The results show that when the critical radius of bubble aggregation is 1 mm and the radius is lower than the critical radius, the efficiency of aggregation increases obviously with the increase of the size of large bubble. When the bubble radius is higher than the critical radius, the law Conversely, the efficiency of aggregation increases stepwise with the increase of the density of the bubbles in the atmosphere, and when the density of the bubbles in the atmosphere is approximately the same as the density of the total number of the microbubbles in the wake, the desired effect of aggregation and defoaming can be achieved.