摘要
氧传质理论因存在不确定的参数而不能用来预测河流复氧系数。从水力学角度推导了液膜厚度δ的表达式 ,用实测资料拟合了其中的比例系数 。
The oxygen transfer theory can't be used to predict the reaeration coefficient of the rivers due to some undetermined parameters. This paper derives the expression of liquid film thickness(δ) from hydraulics considerations. The proportionality coefficient shows a favorable agreement with the experiment observation,whereby making the mass transfer theory models including the parameter δ be used in practice.
出处
《西安理工大学学报》
CAS
2001年第3期297-300,共4页
Journal of Xi'an University of Technology
关键词
氧传质理论
复氧系数
液膜厚度
河流
oxygen transfer theory
reaeration coefficient
liquid film thickness
