In annularspace, the values of tangential, axial and radial turbulence intensity were of the same order of magnitude.
环形空间3个速度分量的湍流度是同一个数量级的。
2
Adding air pressure within the annularspace between the housing and sleeve can throttle, or close the valve.
在阀体外壳和套管之间的环形空间内施加气压,即可实现阀门的节流和关闭功能。
3
The expressions of velocity and flow rate of helical flow of a general viscous fluid has been obtained by using helical flow in a vertical annularspace as an idealized flow model.