查询词典 vortex

Assumed that the coherence of the wind load in vertical is the same to the wind speed, the auto power spectrum and cross power spectrum of the wind load on the tower is formulated. Futhermore, the analysis shows that the contribution of the turbulence is about equal to the vortex shedding for the cross-wind motivation.

基于风荷载竖向相干性与风速相干性一致的假设，得到输电塔不同高度的风荷载自谱与互谱，并分析输电塔横风向激励的组成，识别出紊流激励部分与旋涡脱落激励部分约各占一半。

Through our studies, we concluded that the mesoscale disturbance spreading along the tangential and radial direction respectively has the characters of transverse wave and symmetric inertia-gravitational wave. Nevertheless, the mesoscale disturbance in the area of super-gradient current nearby the eye-wall of Typhoon has the features of the mixed vortex Rossby-inertia-gravitational wave.

研究认为切向和径向传播的中尺度扰动分别具有横波和对称型重力惯性波性质，但在台风眼壁附近的超梯度流区的中尺度扰动具有混合涡旋Rossby波－重力惯性波特征。

In addition, the trailing edge symmetrical jet has little influence on the position of the vortex axis.

另外，后缘对称喷流对涡轴位置的影响很小。

The difference from the traditional opinion is that not every case with trailing edge jet could delay the location of vortex breakdown.

而与传统结论有所不同的是，并非所有的后缘喷流都能延迟涡的破裂。

With the appearance of a free span pipeline, its loading types and stress state will be changed. Especially when ocean currents pass through it, a periodical vortex shedding is often produced and induces vibration of the free span pipeline. This type of vibration contributes a lot to the fatigue failure of a free span pipeline.

管跨段的出现改变了海底管线所承受的载荷形式和应力状态，尤其是在海流作用下流经管跨时，常伴随着周期性的涡旋发放，引发管跨段的周期性振动，成为管跨段发生疲劳失效的主要因素之一。

The non-uniform flow behind a rigid cylinder row with a small pitch ratio T/D= 1.5 is characterized by narrow and wide near wakes and multiple frequencies, and the vortex shedding behind a rigid cylinder row with T/D= 2.0 is replicated properly by the simulation results.

此外，还研究了单列自由振动的弹性圆柱在间隙比为2.0时的流体诱导振动问题，结果表明：在大振幅条件下，流体诱导力在x方向和y方向有较强烈的耦合；随着振幅的减小，x方向振动对y方向振动的影响可以忽略，可采用单自由度的动力学模型假设进行计算。

The non-uniform flow behind a rigid cylinder row with a small pitch ratio T/D=1.5 is characterized by narrow and wide near wakes and multiple frequencies, and the vortex shedding behind a rigid cylinder row with T/D=2.0 is replicated properly by the simulation results.

计算模拟结果很好地重现了刚性单列圆柱在小间隙比(1.5)下以宽、窄尾涡交替和多频为特征的非均匀流态，以及间隙比为2.0时的涡脱落现象。

Fence vortex, which more to the middle of the cascade passage, reduce the loss near the middle of the cascade.

吸力面翼刀通过阻断气流的展向流动和产生反向翼刀涡来对栅内二次流动进行控制。

The individual, with his limits and moderations, forgot himself in the Dionysian vortex and became oblivious to the laws of Apollo.

过份变成真理，物极必反，悲中生乐，这是发乎性灵心中的呼吁。

This eternal force which unites within them ascends as a powerful vortex of energy rising like liquid fire through their subtle bodies and into their 7th chakras at the top of their heads.

这种连结着他们的永恒力量就像强大的能量旋涡那样攀登，就像液体之火一样，通过他们狡猾的身体而提升到他们的头顶上，进入他们的七个脉轮里面。

I was up all night because I was in pain, she said.

我整夜，因为我在疼痛，她说。

A crow caws /craoks.

乌鸦叫。 51-论文网