dimensionless group

A very useful tool for scale-up is the dimensionless group. This is the grouping of system variables so as to cancel out their dimensions.

在放大中使用的一个很有用的工具是无量纲数群。这是系统变量无因次化的一种组合。

The quantitative objectives are converted into proper dimensionless indexes, Through aggregation, each decision makers' fuzzy evaluation indexes of every alternatives are determined with method of index of optimism, which are aggregated into group's indexes of every alternatives.

决策人用语言变量评价权系数和定性目标，对定量目标进行相应的无量纲化处理.经集结确定各决策人各方案的模糊评价指标，用乐观指标法确定各决策人各方案的排序指标。

Based on the analysis and numerical results, the physical mechanism of thermal drive in centrifugal fields is advanced, and a dimensionless parameter group is suggested to measure the relative importance of buoyancy and rotation to the mean equivalent conductivity.

通过方程分析和数值模拟提出了离心力场热驱动流的物理机制以及自然对流和旋转流相对作用大小的判别依据；

Calculation of Orifice metre Flow Rate Using Dimensionless Number Group Method

无因次数群法计算孔板计流量

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。