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Numerical simulation of liquid-liquid dispersion in SK static mixer
Author(s): JIN Zuohong
Pages: 214-
217
Year: 2016
Issue:
3
Journal: Hebei Journal of Industrial Science & Technology
Keyword: chemical engineering fluid mechanics; static mixer; numerical simulation; pressure drop; COV;
Abstract: 为了对静态混合器中的液液分散过程进行深入研究,选用Euler多相流模型和肛ε湍流模型,采用计算流体力学(CFD)的方法,分别计算了单旋和四旋结构的SK型静态混合器的流场.数值模拟结果表明,液液分散过程中四旋结构产生的压降大约是单旋结构的3倍.X<0.04 m时,四旋结构湍流强度大,混合效果优于单旋结构;X>0.04 m时,单旋结构的旋转强化了对漩涡的作用,混合效果更好.研究发现,在X<0.04 m时采用四旋单元,而后采用单旋单元可以取得优秀的混合效果.
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