作　　者： ; ; ; ;

机构地区： 北京化工大学塑料机械与塑料工程研究所

出　　处： 《塑料工业》 2004年第7期20-22,50,共4页

摘　　要： 针对经典成核理论在描述流场中气泡成核行为时的局限性 ,根据缝模流道中的剪切成核实验结果 ,提出了剪切流场下描述气泡成核的剪切能成核理论 ,并与文献中其它剪切促进气泡成核的解释进行了比较 ,从而进一步完善了剪切流场中的气泡成核理论。 Owing to the deficiency of conventional classical nucleation in describing the bubble nucleation behavior under flow fields,a shear nucleation experiment was made using a slit channel die. According to the experimental results,a shear energy nucleation theory was proposed to illustrate the shear nucleation behavior,and comparison with other explanations in the literature for describing the enhancement of shear effect upon bubble nucleation was made to show the advantage of this theory. Therefore the bubble nucleation theory under shearing flow was consummated.

关 键 词： 气泡成核 剪切流场 剪切能成核理论 经典成核理论

领　　域： [化学工程]