涡

At the foot of big, towering trees, trunkless nipa palms rose from the mud of the bank, in bunches of leaves enormous and heavy, that hung unstirring over the brown swirl of eddies.

山脚下大，参天树木， trunkless nipa手掌已从泥巴银行在枝头叶片巨大而沉重，洪unstirring超过棕色漩涡涡。

The analogue results obtained from the water turbine in Gezhouba have been used by the author in his evaluation of the vibration characteristic of turbine blade and a nomographic chart indicating the relationshi...

作者将葛洲坝水轮机叶片模态分析结果，应用到叶片振动特性的估价中，绘制了转速及其派生的频率，卡曼涡频率与叶片固有频率关系的诺模图，可供设计参考。

Based on this theory, a new fluid excitation nonlinear vibration model of rotor seal system was set up.

传统密封动态特性八参数模型是以线性系统稳定性为基础的，Muszynska模型在一定程度上发展了八参数模型，反映了流体激振力的某些非线性特性，但在描述转子密封系统大涡动状态下的非线性特点时，就有很大的局限性。

The purpose of the present paper is to investigate the characteristic feature of the aerodynamics of a nose cone at a high angle of attack and study the vortex stability problem for the flow over a flat-plate delta wing with the dorsal fin .

本论文主要是通过实验来研究细长圆锥体在大迎角下的绕流流场的特性和细长三角翼加背鳍后对前缘涡的影响，检验相关理论结果。

Numberical analysis are carried out for different Reynolds numbers at the costant wall temperature ,it shows that there is the best front interval between two fins .

研究发现，纵向涡发生器的传热强化效果与翅前端距有很大的关系，并存在一个最佳的翅前端距。

A detailed investigation was conducted in this paper on the flow asymmetry and its influencing factors over an ogive slender body model, incorporated with surface pressure measurement, skin oil flow pattern visualization, hot wire dynamic signal acquasition and other relevant approaches, in a low turbulence wind tunnel.

现代先进战斗机和战木导弹常具有细长前体，大攻角条件下前体背风面会形成非对称涡结构，从而产生很大的侧向力和偏航力矩，这会严重影响飞行器的可操纵性和飞行安全。

An improved method is used to describe non-linear characteristics of oil film.

本文提出了改进的模型，用模型中各参数随偏心率的非线性分布来反映油膜力的非线性特性，使该模型能够进一步用于转子系统进入涡动状态后的瞬态运动描述，并给出了利用差分解获得模型中各参数近似估计的方法。

Contrast experiments also demonstrate that the downward transmission of oppositive potential vorticity indicates the strengthening of typhoon.

对比试验还表明，正位涡向下输送预示着台风将快速加强。

This is found to result from the existence of negative orography in this low-resolution model. It is shown that, over the grid-points where orography height is negative, there exists false sensible heat source that leads to warmer temperature and higher geopotential height.

利用位涡的特性，研究并模拟了大气流场在短时间尺度上对非绝热加热的响应，并提出了"过流"的概念：在加热层顶，即使非绝热加热消失，仍存在上升运动，反气旋涡度环流和冷中心。

A fourth-order compact finite difference alternating-direction-implicit algorithm is proposed for solving the unsteady-state Navier-Stokes equations of fluid flow and heat transfer using the streamfunction-vorticity formulation. Point-successive overtaxation iteration is used to achieve the steady solutions.

本文构造了求解二维非定常涡量流函数形式Navier-Stokes方程组的一种四阶紧致交错方向隐式差分算法，对包括能量方程在内的离散化方程组采用逐次超松驰迭代法求得稳定解，求解了二维非定常粘性不可压缩流体的流动与传热问题。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。