部分气泡被旋涡空化团所包含，因此在通气条件下，空化涡中包含有空化泡和空气泡。
With the motion of separating vortices, some of them flow downstreamly as a free air bubbles, and some move to the shear layer flow region entrained by cavitating vortices.
作用在任意运动物体（系）上的力和力矩可以分别表示成流场中动力学涡量的一阶矩和二阶矩随时间的变化率。
The force and moment exerted on the solid body are expressed as the rate of change of the first-and second-order kinetic vorticity moments, respectively.
因此，南海环流的多涡结构与中尺度波动之间存在着一定的联系。
Thus, there exist some relationship between the multi-eddy structure of the South China Sea circulation and mesoscale fluctuation.
结果表明：大涡模拟技术可以得到发动机内湍流流场中详细拟序结构，时均湍流模拟对于火箭发动机内流场时均量的模拟仍有较好的工程精度。
It was shown that the detail construction of turbulence in rocket can be predicted by LES, and the time-averaged method also can give the result with satisfiable engineering precision.
介绍LUGB系列涡街流量计的工作原理，使用过程中干扰现象及排除方法。
The article introduces the principle of LUGB series flowmeter, failure in use and repair method.
本文数值模拟了多涡结构在边界层中的非线性演化过程。
The evolution of vortexes in the boundary layer are numerically simulated.
在考虑瞬态过程中动量扩散速度基础上，用拉普拉斯变换法对无限长平板突然起动瞬态动量定解方程进行了求解，并按涡量定义求出涡量分布函数。
Based on the limited momentum propagation velocity, this paper presents the solution of the transient momentum equation by Laplace transform. The distribution functions of velocity and eddy are given.
结合涡街流量计安装的一般要求，就其安装前的准备工作进行了介绍，着重阐述了仪表安装中应注意的几个问题，以便更好地为安装涡街流量计提供一些帮。
According to installation requirements of vortex flowmeter the preparation work is introduced as well as the matters needing attention in installation in order to provide reference for engineers.
大气流过涡街传感器时，在传感器中形成一系列的漩涡。
When flowing through the vortex street sensor, the atmosphere generates a series of vortexes.
这个系数考虑到了在固体颗粒上吸附的气体，尾涡和乳化相之间的交换以及在这个体系中的滞留量。
This factor accounts for the gas adsorbed on the solids, its interchange between the wake and the emulsion, and its holdback in the system.
计算中采用了不同的大涡模拟系数。
Different large eddy simulation coefficients were adopted in the calculation.
计算的相对涡强度、入口校正和文献中的结果基本一致，给出的流场也显示出计算结果是合理的。
The relative vortex intensity and the entrance correction obtained here agree with the results reported in the literatures, and the flow fields are also reasonable.
在估算紧密编队飞行中长机翼尖涡对僚机的影响时，本文在所用到涡模型中也考虑了由空气粘性引起的涡流随时间的衰减效应。
We also consider the effect of vortex decay over time caused by the viscidity of atmosphere in our vortex model in estimating the vortex effect experienced during the close proximity formation flight.
本文根据水洞观察的结果，分析了圆柱体尾流中，卡门涡街形成的原因是由于流动的不稳定性所产生。
Based on the observation and analysis of flow visualization the mechanis of the vortex street has been recognized to be a flow instability probler.
将它与大气对流边界层中的“大涡”自组织现象作了初步对比。
And it was compared with the self organizing phenomenon in atmospheric convective boundary layer.
最后指出在琉球群岛以东、以南海域，经常出现各种不同的中尺度反气旋式和气旋式涡，讨论了它们在时间与空间尺度上变化的特征。
In the regions east and south of the Ryukyu Islands, there are some mesoscale cyclonic and anticyclonic eddies with different scales, and the variability of their character is also reviewed.
本文对动失速型非定常分离涡结构的控制方法，在低速风洞中应用相平均测压技术进行了实验研究。
Experimental investigation on the control of dynamic stall type vortex flow was made in a low speed wind tunnel by using phase averaged pressure measurement technique.
涡街流量计中的处理电路不能保证仪表在工业现场的测量精度。
The processing circuits in the vortex flowmeter are unable to ensure the measuring accuracy in the industrial fields.
涡度平衡中主要是水平平流累积的正涡度与散度项制造的负涡度相平衡。
Positive vorticity accumulated by horizontal advection was balanced with negative vorticity made by divergence term in vorticity balance.
为证实这一现象，我们通过对中尺度暖涡流场结构分析，提出了中尺度暖涡诱导陆架上升流的必然性。
The structure of mesoscale warm eddy was analyzed in order to verify this phenomenon. The necessity of shelf upwelling induced by mesoscale eddies was thus confirmed.
结果表明：(1)LTC在陆上长久维持过程中，其低层正涡度衰减缓慢并保持一定强度。STC登陆后正涡度减弱较快。
The results have shown that (1) LTC would keep its positive vorticity a stronger value in lower level and decay slowly while STC would decrease quickly after landfall.
我看见你深情凝视着我，晨曦中梨涡浅笑。
本文对后台阶分离流动中涡结构的演变进行了大涡模拟，研究了流场结构的变化规律。
In this paper, the evolution of eddy structures in the backward-facing step flow was studied by using large eddy simulation.
然后利用矢量势和涡方程以及人工瞬变方法计算封闭腔中水的三维粘性自然对流。
Then, the vector potential and vorticity equations and the method of the false transient are applied to compute the three-dimensional viscous natural convection.
理论分析证明，流体力学中无粘亥姆霍兹涡量方程可以实现图像修复。
Based on theoretical analysis, inviscid Helmholtz vorticity equation is used to in paint image.
这意味着网格湍流能有效抑制剪切层中的大涡和拟序结构。
This means that grid turbulence can effectively suppress the large-scale vortex and coherent structure in the shear layer.
太阳慢慢升起，浓雾渐渐散去。我看见你深情地凝视着我，晨曦中梨涡浅笑。
The dense mist slow dissipates as the sun rises. I see you are gazing at me, smiling softly at dawn.
太阳慢慢升起，浓雾渐渐散去。我看见你深情地凝视着我，晨曦中梨涡浅笑。
The dense mist slow dissipates as the sun rises. I see you are gazing at me, smiling softly at dawn.
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