Abstract The corrugated plate is a vital steam-water separation device in nuclear power plants. Research on steam-water separation mechanism and separation efficiency of corrugated plates has been a hot research direction. In this paper, the film lateral movement distance of the film reflux on the corrugated plate wall is measured by PLIF method. Based on experimental results, calculation equation of film lateral movement distance when the film reflux with good applicability is fitted. The degree of liquid film reflux is characterized by the lateral distance between the apex of the liquid film reflux profile and film mainstream. This parameter is defined as distance of liquid film reflux. Based on the law of conservation of mass, theoretical equation of distance of liquid film reflux is derived. Results show that theoretical results of distance of liquid film reflux agree well with experimental results in small and medium Reynolds number regions (Re

中文翻译：

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波纹板干燥机壁面液膜回流现象研究

摘要 波纹板是核电站重要的汽水分离装置。波纹板汽水分离机理及分离效率的研究一直是研究的热点方向。本文采用PLIF法测量波纹板壁上薄膜回流的薄膜横向移动距离。根据实验结果，拟合了适用性好的薄膜回流时薄膜横向移动距离的计算方程。液膜回流的程度用液膜回流剖面的顶点与膜主流之间的横向距离来表征。该参数定义为液膜回流距离。根据质量守恒定律，推导出液膜回流距离的理论方程。