dimensionless group 中文意思是什麼
dimensionless group
解釋
量綱群- dimensionless : 無量鋼的無維的，無度的
- group : n 1 群；批，簇。2 集團，團體，小組。3 【化學】基，團，組；（周期表的）屬，族。4 （雕塑等的）群像...
-
Presents the equation of the characteristics of air vertical temperature distribution using the mean dimensionless excess temperature and ventilation efficiency as undetermined group and the other groups as determined ones
用平均量綱一過餘溫度和通風效率（待定綜合量）與其他已定綜合量確定了室溫垂直分佈特徵的表達式。 -
Obtains two kinds of quantity group based on the similitude principle, i. e. the dimensionless similarity criterion and the dimensional thermal stratification height
根據相似原理綜合各因素得到了兩種形式的綜合量：無量綱的相似準則和熱分層高度等量綱不為一的綜合量。 -
Firstly, based on n - s equation, the momentum differential equation （ contained centrifugal force ） is derived by simplification in boundary layer and then integrates the differential equation over the thickness of the boundary layer, the momentum integral equation is deduced. the dimensionless centrifugal factor is introduced, then the solution of the momentum integral equation is obtained. the dimensionless group is introduced to determined separation of boundary layer
本文首先根據粘性流體力學的一般方程，通過在邊界層內進行量級比較，在所限定的范圍內得到了含有離心力的邊界層動量微分方程並給出其滿足的邊界條件，然後對該微分方程在邊界層內積分得到離心泵葉輪邊界層動量積分方程，在求解過程中引入了無量綱離心因子，並作了相應合理的假設，得出積分方程解的一般表達式，並引入以邊界層動量損失厚度為主要特徵量的無量綱參數對邊界層分離進行評價。
分享友人