查询词典 vortex sheet

By using the gauge potential decomposition, we have discussed the self-dual equation and its solution in Jackiw-Pi model. We obtained a new concrete self-dual equation and find relationship between Chern-Simons vortex solution and topological number which is determined by Hopf indices and Brouwer degrees of φ-mapping.

运用规范势分解理论研究了Jackiw-Pi模型中的自对偶方程，得到一个新的自对偶方程，发现了Chern-Simons多涡旋解与拓扑荷之间的联系。

QB Clean water pump series belong to the vortex pump direct-coupled between electric machine and pump body.

QB系列电动清水泵是一种高效的电动泵。

One is the three different streamtube-methods which are single-disk single-streamtube, double-disk single-streamtube and multi-streamtube method based on the momentum theory, the other is the vortex method based on the potential eddy theory.

一是根据动量定理的流管模型得到的求解诱导速度的单盘面—单流管方法、双盘面—单流管方法、多流管方法；二是根据势涡理论得到的求解诱导速度的的涡方法。

It is also possible to predict both the frequency and amplitude of pressure fluctuation at the inlet and outlet of all parts of turbine, as well as the phenomenon of rolling vortex in the draft tube.

从而得出水轮机各部件内的瞬时流态和随时间的变化过程，预测了水轮机各部件内压力脉动的频率和幅值，并显示尾水管内的旋转涡带现象。

The result clearly reappearances vortex movement at the part load condition and flow field and pressure distribution in the draft tube under different conditions,which were much more rational and similar to practical experiment results,and which assure that the inlet velocity model is very close to the authenticity.

计算结果后处理清晰再现了小流量工况尾水管涡带的运动形式和三种工况下尾水管内部的流场和压力分布，情况和实际符合较好，验证了所建立的进口速度模型的逼近真实性。

It is not enough to resolve all of the problems related to the hydraulic stability only to analyze the stable field in passing components. Finally, the paper numerically simulated the transient field in prototype's draft tube under different operating conditions by means of Reynolds stress turbulence model and analyzed the law of motion of vortex rope as well as the performance of low-frequency pressure pulsation and compared with field test results.

仅仅对机组的过流部件进行稳定场的CFD数值分析还不足以解决所有与水轮机水力稳定性有关的问题，因此在本论文的最后，采用雷诺应力湍流模型对真机尾水管在不同运行工况下进行了非稳定场的CFD数值解析，分析涡带的运动规律及其产生的低频压力脉动特性，并与真机的试验结果进行了比较，结果比较吻合。

Beyond the screen of Nuovo cinema Paradiso , lies the metaphor of living in the vortex or on the verge of the two abysms .

Nuovo cinema Paradiso 的影下，隐喻着在两个渊薮边缘或是中心的生存。

In this dissertation, investigations on the analysis and measurement of the fluidflow in conduits using the characteristics of a vortex street were carried out.

尽管这一课题的理论和实际意义均十分重大，但是该领域的研究成果还相当有限。

The simulation also shows the tracks of droplets, and the detailed distributions of pressure, velocity, vortex and droplet concentration, which are instructional to the optimal design of demister.

数值模拟还显示了液滴的运动轨迹以及液滴浓度、压力、速度和旋涡的分布情况，这对除雾器的优化设计具有指导意义。

Water elementals rely on their vortex as a primary attack and then switch to melee combat as appropriate.

水元素依靠他们的漩涡能力作为首要攻击并且在适当的情况下转为近战。

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。