dimensionless number

A correlation formula with dimensionless number group is established to calculate the drying intensity.

在此基础上，结合因次分析法，建立了用于计算干燥强度的准数关联模型。

The main dimensionless parameters that influence the homogeneity of the fluid thermal boundary conditions are Peclet number, the wall to fluid thermal conductivity ratio, the heating/ cooling length radius ratio and the wall thickness radius ratio of testing pipe.

影响这种不均匀性的主要因素是Peclet数、管壁材料的相对导热系数、实验段相对加热长度及管壁相对厚度等无量纲参数。

Calculation of Orifice metre Flow Rate Using Dimensionless Number Group Method

无因次数群法计算孔板计流量

The pressure distribution and the flux factor of the hollow fiber membrane reactor are deduced as functions of a dimensionless number λ by a theoretical analysis of its operation modes of Ultrafiltration ( UF), Recycling ( RC) and Backflush ( BF).

通过对超滤、循环和反冲操作的中空纤维膜反应器流体力学状况的分析，推导出反应器内压力分布、通量因子与阻力因子λ的关系。

NPS, followed by a dimensionless number, is the designation for nominal fitting size.

后带一无量纲数的NPS是管件公称尺寸的代号.