1) Karman vortex
卡门涡流
2) Karman vortex street
卡门涡[流]街
3) karman vortex(Karman vortex street)
卡门涡流(卡门涡街)
4) karman vortex frequency(Fk)
卡门涡流频率
1.
Providing the method of judging whether Tubular air preheater vibrates,and acquainting the practicable method to eliminate the vibration by comparing the value of karman vortex frequency(Fk)with the value of air-chamber acoustic waves frequency(Fc).
给出了判断管式空气预热器是否振动的计算方法 ,并根据卡门涡流频率fk 与气室声学驻波频率fC 的值大小相对比 ,找出合理的解决方案 ,达到消除振动的目的。
6) Karman vortex street
卡门涡街
1.
The emission frequency of the Karman vortex street occurred in series from the blades and tongue is varing with the running condition.
将流程泵叶轮叶片和压水室的隔舌看作旋涡发生体,在不同运行工况下在叶片后缘以及隔舌两侧串联发生的卡门涡街的发射频率是不同的。
2.
The stability of the Karman vortex street verified by using point-vortex model when perturbed infinitesimally is however a “slow instability”as shown by the simulation when the street is to be perturbed by finite disturbances.
经典的卡门涡街点涡模型只在一孤立情况下是线性稳定的。
3.
When the cylinder impulsively starts from rest, the early stage flow, flow seperation process and vortex generation, the unsteady evolution of vortex street and the wake flow with bine progress are numerically sedated in detail in this paper, including the generation of symmetric vortex, the α-phenomenon as a result of secondary vortex and Karman vortex street.
本文应用有限差分方法求解涡量－流函数形式的Ｎ－Ｓ方程，数值模拟了圆柱瞬时起动后流动分离，旋涡生成、脱落以及随时间推进涡街产生和长期非定常演化过程，包括对称涡的生成，二次涡形成的α结构及卡门涡街等。
补充资料：居庸关过街塔门元代浮雕
见居庸关云台。
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