查询词典 vortex sheet

The central angle of the impingement fluid separated from the target surface became larger with the increase of jet Reynolds. And the separating angle also increased with the increasing ratio of the jet distance to the diameter of the jet hole, while the range of induced vortex became smaller.

试验中发现随着冲击雷诺数的增加，冲击气流与壁面分离处对应的圆心角增大，分离推迟；随着相对冲击间距值的增加，气流与壁面分离处对应的圆心角越来越大，相对于受限空间的大小，诱导涡的范围越来越小。

Above: In Charybdis the circular movement of water inside a transparent acrylic cylinder forms an air-core vortex in the centre.

上图：在卡律布狄斯中，水于透明丙烯酸圆桶中的环状运动轨迹，在圆中形成了空心涡流。

An improved model of curved vortex element on the circular arc for rotor free wake analysis is presented.

涡元技术是尾迹分析的基础，本文第二章改进了先前的曲涡元模型。

The low-dimensional Galerkin method is generalized to solve the flow around arbi-trarily translating circular cylinder.Active control problems of wakes behind circularcylinders are numerically investigated by only small number of modes.The in-line andtransverse oscillation of a circular cylinder with proper frequency produce Karman vor-tex street successfully in some subcritical regime,vhereas the transverse oscillation of acircular cylinder with 1.8 times the natural shedding frequency can effectively suppressthe Karman vortex street at a slightly supercritical Re.

将低维Galerkin方法推广至可以求解任意平移运动圆柱的绕流问题，用较少的模数值研究了圆柱尾迹的主动控制问题，在亚临界Re数下圆柱以适当的频率沿流向和横向振动均成功地激发出Karman涡街；而在略高于临界Re数下圆柱以1.8倍自然脱涡频率沿横向振动明显地抑制了Karman涡街；再现了超临界Re数横向及流向振动圆柱绕流的频率锁定等复杂非线性现象。

Consider a circular vortex ring of radius R.

考虑半径为R的涡旋环。

Therefore if thou shalt separate from thyself, that is, from thy understanding, whatever others do or say, and whatever thou hast done or said thyself, and whatever future things trouble thee because they may happen, and whatever in the body which envelops thee or in the breath, which is by nature associated with the body, is attached to thee independent of thy will, and whatever the external circumfluent vortex whirls round, so that the intellectual power exempt from the things of fate can live pure and free by itself, doing what is just and accepting what happens and saying the truth: if thou wilt separate, I say, from this ruling faculty the things which are attached to it by the impressions of sense, and the things of time to come and of time that is past, and wilt make thyself like Empedocles' sphere

因此，如果你是自己，也就是说使你的理智同这些事情分开－即不管别人做或说了什么，不管你自己做或说了什么，不管将来可能发生什么事情使你苦恼，不管在将你包裹的身体中，或者在天生与身体结合在一起的呼吸中，有什么东西违背你的意志而附着于你，不管那外部缠绕的事物旋涡是如何旋转，为了使免除了命运束缚的理智力自身能纯粹和自由地活动，那么去做正当的事，接受发生的事和诵出真理吧，我说，如果你使这种支配能力脱离开那些通过感官印象而附着于它的事物，脱离开那些未来的和过去的事物，你就将使自己像恩培多克勒的球体一样

If the circumpolar vortex lasts longer than usual in future years, a large ozone hole could be expected to develop above the Arctic.

如果环极涡旋在未来几年里比正常情况下持续更长时间，一个大规模的臭氧空洞就很可能在北极上空发展起来。

With random disturbances on the inlet of the jet, axisymmetric instability appears firstly and then the large coherent structure—vortex ring is formed.

在模拟自然射流的随机扰动的条件下，射流首先出现轴对称失稳，形成大尺度拟序结构一涡环。

How it works: The Mileage Maxx produces a vortex, effect in the combustion chamber of your engine.

它是如何运作的：里程maxx产生旋涡，影响燃烧室的你的引擎。

In chapter 4, employing the molecular dynamics simulations, we study the melt-ing transitions in driven vortex lattices with commensurability between arrays ofvortices and defects.

在第四章中，采用分子动力学模拟，研究了在涡旋与钉扎缺陷之间匹配条件下的驱动涡旋晶格的融熔转变。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。