非稳态流 meaning in English

unsteady flow

Simulation and experiment on the unsteady 3d flow field of cool store
保鲜库三维非稳态流场模拟及实验
When is a flow compressible [ for both steady and unsteady flow ]
什麽时候流动是可压缩的[对稳态和非稳态流而言] ？
The next large block of lectures covers quasi - one - dimensional flow , followed by a discussion of disturbances and unsteady flows
接下主要内容介绍了准一维流动，接著讨论扰动流与非稳态流。
One - dimensional perturbation solution of the problem about the unsteady fluid - solid coupling seepage in coal methane unsaturated water flow phase
煤层气非饱和流阶段非稳态流固耦合渗流的一维摄动解析解
2 . the distribution of velocity and concentration field are gained by numerically simulating the pulsed non - steady flow field of riverway equipped with navigation lock , after salt water is drained it into
2 、对船闸河道的脉冲状非稳态流场进行数值模拟，得出将盐水排放入后河道的浓度场和速度场分布。