涡

Numerical simulation for this event is performed using the non-hydrostatic, two-way interactive, triply nested grid mesoscale model MM5 and the structure of the inverted typhoon trough is studied. Furthermore, the formation and development mechanism of the inverted typhoon trough as well as the meso-scale vortex are discussed through the budget of vorticity equation.

采用双向三重嵌套网格非静力模式MM5对这一过程进行了数值模拟，研究了台风倒槽的中尺度结构特征，并通过涡度收支探讨了台风倒槽及中尺度低涡发生发展的物理过程。

A systematical study of distribution and number of vortices is conducted.

在长、短叶片上分别布置强度不等的点涡来模拟叶片对流场的作用，系统地研究了点涡的分布及数目。

The present study focuses on some important aspects of LES technology. It includes review of LES development, fundamental theory and equations and numerical implementation. The procedure of LES consists of filtering Navier-Stokes equation, modeling subgrid scale, closuring the set of equations and solving the numerical equations.

本文对大涡模拟的研究集中在以下几个方面：首先回顾了大涡模拟技术发展的历程，它的理论基础与滤波方程组，以及它在CFD程序中的数值模拟实现：包括滤波NS方程，模化亚网格量，封闭滤波方程，求解滤波方程。

The study of mesoscale eddies is more active than before with the applications of satellite altimeter and the development of numerical models.

随着高度计资料的广泛应用以及涡分辨率数值模式的发展，南海中尺度涡的研究越趋活跃。

The study of mesoscale eddies is more active than before with the applications of satellite altimeter and the development of numerical models.

随著高度计资料的广泛应用以及涡分辨率数值模式的发展，南海中尺度涡的研究越趋活跃。

It is observed that there are six ways for amalgamation of four vortices. Therefore, the evolution of vortices can be controlled positively by superimposing multi-harmonics and changing their phase differences.

计算结果表明：四涡的合并存在6种形式，因此，可以通过施加多级次谐波并改变它们之间的相位差来主动控制拟序涡的发展和演变。

Mathematical model of nonlinear vortex-induced vibration was presented for predicting the nonlinear dynamic responses of submerged floating tunnel tethers which were subjected to wave, current and oscillatory displacements at their upper end in horizontal and vertical directions.

建立了水中悬浮隧道锚索在波流场中涡激振动的非线性数学模型，考虑了锚索的几何非线性对其涡激振动的影响，并应用有限差分法求解了锚索的运动控制方程。

The result shows that double leakage vortexes are the dominating flow behaviors in the rotor tip region.

结果显示一次泄漏涡和二次泄漏涡是动叶顶部的主要流动特征。

The results show that there are clear local features in evolution of geothermal vortexes relating to strong earthquakes in different regions. One of the most important features is the merger of geothermal vortexes.

研究表明，与强地震有关的地热涡的演变有较明显的地域特点，即在不同的地区地热涡的活动有其相对较固定的活动模式，其对强地震的影响方式也较类似。

As such the mechanism of particle transfer in a fully developed wake can be explained as: move around vortexes and forward with wake flow.

因此粒子在充分发展尾流中的运动可以描述为：一边绕涡团运动，一边随涡团向尾部运动。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。