1) quasi-stationary theory
准常流理论
2) the theory of quasi-steady state
准定常理论
3) unsteady potential flow theory
非定常势流理论
1.
The unsteady potential flow theory is used to analyses the flow field and hydro-dynamic calculation.
将非定常势流理论用于应急上浮运动流场分析与水动力计算。
4) quasi-three dimensional flow theory
准三元流动理论
1.
Based on quasi-three dimensional flow theory and related design ideas,the principle of configuration optimization and pressurization design was provided for the mixed flow fan,which has characteristics of small size,high rotating speed and high pressure.
针对直升机用斜流风机小尺寸、高转速、高压头的特点,根据准三元流动理论及相关设计思想,提出了这种风机进行结构优化和增压设计的准则,进而采用叶片径向平衡方程和约束条件求解子午面速度,最后基于气动力基本方程和自由涡理论进行回转面气动数据计算和风机造型。
5) quasi-steady flow
准定常流
1.
On the hypothesis of isentropic flow and quasi-steady flow,a model of gas parameters in the storage chamber is established by a method of the lumped parameters.
在等熵流和准定常流假设条件下,采用集总参量法,建立了弹后高压火药气体通过小孔在弹体内气室与弹后空间之间流动的气体参数理论计算模型。
6) Stable theory
定常理论
补充资料：常理
1.一般的规律。 2.通常的道理。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条