TB92 2005043040 光学投影式检测非球面器件的模拟计算=Simulation cal- culation of measuring optical aspheric surface based on light pattern projection[刊,中]／段存丽(西安工业学院光电科学与工程学院．陕西,西安(710032)),田...TB92 2005043040 光学投影式检测非球面器件的模拟计算=Simulation cal- culation of measuring optical aspheric surface based on light pattern projection[刊,中]／段存丽(西安工业学院光电科学与工程学院．陕西,西安(710032)),田爱玲…／／光学仪器,-2005,27(1),-47-51 针对光学投影式检测非球面器件过程进行模拟,利用光学的基本理论和数学公式推导,对非球面度的检测过程进行了理论分析及精密计算。展开更多
The flow pattern behaviour of falling liquid film over three horizontal cylinders was evaluated.These flows can take three forms:discrete droplets,individual jets,and continuous sheet,and special attention is paid to ...The flow pattern behaviour of falling liquid film over three horizontal cylinders was evaluated.These flows can take three forms:discrete droplets,individual jets,and continuous sheet,and special attention is paid to the effects of the physical properties and geometrical parameters of the first two forms(droplets and jets) because these forms are more important in heat-transfer behaviour and less research has been published for these forms,The flow modes and experimental results were successfully compared with previous experimental literatures,and also the effects of liquid flow rate,tube diameter,and tube spacing on departure site spacing,in both drop and jet modes,were evaluated in the low Galileo number and high viscosity fluid(cooking oil),to help developing criteria for determining falling film modes and their transitions,and to understand the heat transfer characteristics associated with each mode.展开更多
基金supported by New Product Development of Small and Medium Business Administration(SMBA)funded by the Ministry of Education,Science and Technology (No. 2011-0021376) through the Basic Science Program of the National Research Foundation of Korea(NRF)
文摘The flow pattern behaviour of falling liquid film over three horizontal cylinders was evaluated.These flows can take three forms:discrete droplets,individual jets,and continuous sheet,and special attention is paid to the effects of the physical properties and geometrical parameters of the first two forms(droplets and jets) because these forms are more important in heat-transfer behaviour and less research has been published for these forms,The flow modes and experimental results were successfully compared with previous experimental literatures,and also the effects of liquid flow rate,tube diameter,and tube spacing on departure site spacing,in both drop and jet modes,were evaluated in the low Galileo number and high viscosity fluid(cooking oil),to help developing criteria for determining falling film modes and their transitions,and to understand the heat transfer characteristics associated with each mode.
