laminar flow regime meaning in English

层流态

In the laminar flow regime , a analytical mathematical model is obtained by analyzing the film flowing in the wavy wall tube . in the turbulent flow regime , mathematical model almost ca n ' t be obtained directly because the turbulent flow in wavy wall tube is very complex , the model is obtained by quoting some results which are theorized by other studiers . in the part of experimental study , the flow form in the wavy wall tube is observed by transparent quartz glass wavy wall tube apparatus , the evaporation experiments are carried out in a 3 meters steel wavy wall tube , using glucose as the medium , heat transfer is invested , the heat transfer correlations of wavy wall tube evaporator are obtained
数学模型的建立过程中，对于液膜层流流动，直接对波形管内的降落液膜进行理论分析，得出液膜层流流动下数学模型的解析式；对于液膜湍流流动，由于湍流流动的复杂性，再加上所采用的波形管对湍流流动的影响，直接对降落液膜进行理论分析建立数学模型是极其复杂的，通过采用以前一些研究者得到的理论分析与实验结果，并引入与波形管的形状特征参数有关的修正系数k ，建立液膜在湍流流动下的数学模型。