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vortex相关的网络例句

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At the location of the south polar vortex for the normal year, the mixing ratios of O3 and CH4 increased, HCl and NO decreased, but NO2 and H2O did not accord with a given rule at all altitudes over Antarctica in 2002, which was related to the change of the vortex and the dynamical transportation after the SSW, and affected by the reduced polar stratospheric clouds and weakened processes of heterogeneous chemistry.

通过比较还发现,在通常年份极涡所处的位置上,2002年O3和CH4的混合比有所增加,HCl和NO的混合比有所减少,而NO2和H2O在不同高度上的变化特点不同。这与爆发性增温之后极涡和动力输送的变化有关,同时由于增温导致极地平流层云中相关冰相反应的减弱也是一个重要的原因。

Vortex folwmeter ; optical-fiber ; light-frequency modulation ; vortex shedder

涡街流量计;光纤;光频率调制;涡街发生体

According to instantaneous velocity fields and vorticity fields measured with SPIV, detailed analysis of the evolution of tip leakage vortex at both design and near stall conditions is presented in this thesis and the different phases of the evolution of the tip leakage vortex, the formation, becoming unstable and the interaction between small-scale vortices and the mainstream can be clearly observed in the experiment results.

SPIV测量结果表明压气机转子叶尖泄漏涡在设计和近失速状态下均存在形成、发展壮大和失稳分裂的演化过程。

It is found that topological charge of vortex beam influences the interference pattern, i.e., by compared with the straight interference pattern of plane wave, the interference pattern of vortex beam is shifted in the transverse direction as we look from the top of the interference to the bottom, and the magnitude and direction of shift are related to the topological charge.

详细介绍了涡旋光束的拓扑荷数对干涉条纹分布的影响。发现同平面波的竖直干涉条纹相比较,涡旋光束的干涉条纹,从顶部向底部看去,沿着横向出现移动,并且移动的大小和方向与拓扑荷数的取值有关。

The simulation is carried out with the excitation frequency relative to the natural vortex-shedding frequency from the corresponding stationary cylinder taking values in the range which stands for sub- and superharmonic excitation and the oscillation dimensionless amplitudes. Change of these parameters and Reynolds number will lead to the mode synchronization and mode competition and the switching between different vortex shedding modes.

对振动频率和静止圆柱旋涡脱落频率比在一定的超谐和亚谐范围、一定的无量纲振幅范围和不同的雷诺数都作了模拟,发现随这些参数变化将产生旋涡脱落模式的同步、竞争和相互转化现象。

And it is noted that the velocity field in a hydrocyclone is divided to two areas, i.e. the outer para-free-vortex and the inner para-forced vortex. The boundary surface of the velocity field is the maximum tangent velocity track surface, which is a cylinder when the hydrocyclones structure is reasonable.

分析研究结果表明,旋流器的切向速度场由外部准自由涡和内部准强制涡两个区域构成,其分界面为最大切向速度vtmax的轨迹面,结构设计合理时,此轨迹面为一圆柱面。

Based on the above study, a program is developed which calculate the modeled subgrid stresses, and is applied to simulate the turbulent flow in a plane channel. The computational result is compared with the data extracted form a DNS database, and the agreement is satisfactory. A numbers of physical phenomenon has been reproduced in the simulation, including hairpin vortex and counter-rotating rolls in near wall region, intermittent vortex structure, the maximum of pressure clustering in wall area and the high-speed fluid sweep into the low speed fluid, and the ability of the LES to simulate turbulent flow is well shown.

在对LES技术学习掌握的基础上,编制了亚网格模型的计算程序,在三维平板通道流动的具体计算中应用大涡模拟技术,并与DNS计算结果进行了比较,得到了满意的结果,三维通道中的重要流动现象被很好的预示出来,包括近壁面的发卡涡,对旋涡,间歇猝发涡结构,压力最大值向壁面的倾斜,高速流体对近壁面流体的下扫,卷掠等,显示了大涡模拟技术对湍流流动模拟的能力。

It is revealed that in the condensates, the different configurations of order parameters lead to different topological structures-velocity field vortex lines, Mermin-Ho vortex lines and monopoles, and these three topological structures can all be characterized by the Hopf indices and Brouwer degrees of φ-mapping, and their locations and motions also be rigorously determined by φ-mapping theory.

文中指出,在凝聚体中,序参量的不同位形导致了不同的拓扑结构—速度场涡旋线、Mermin-Ho涡旋线和单极,而这三种结构都可由Φ-映射Hopf指标和Brouwer度所表征,并且它们的位置和运动亦可由Φ-映射理论严格确定。

Secondly,as an application ofφ-mapping topological current the-ory,the vortices in TDGL model have been studied.Some importantartificial hyperthesises in other theories have been changed into naturalresults ofφ-mapping topological current theory.The inner structureof vortices system in the TDGL model has been obtained in terms oforder parameter field.For the first time,the branch process of thevortex system in the TDGL model have been discussed.

其次,作为Ф-映射拓扑流理论的重要应用,本文研究了TDGL模型的vortex动力学,对过去该模型中的一些人为假设给予了合理而严格的理论基础,用序参数的Hopf指数和Srouwer度表征了拓扑荷,建立了该系统拓扑性质的新理论,并首次探讨了TDGL模型中的vortex的分岔过程。

In the vortex ring gait, the upstroke is aerodynamically passive (there is no bound circulation during this phase, and hence no trailing vortex), and the wings flex and move close to the body to minimize drag.

在涡环的步态, upstroke是aerodynamically被动的(是没有约束,流通在这一阶段,因此没有尾随涡),和翅膀flex和动议接近身体,以减少阻力。

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在美国,慢性酒精中毒,肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题,你可以随时联系我。

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很漂亮,不过停机坪更迷人。那人俏皮地答道。