查询词典 turbulence

The numerical algorithms, turbulence model and its application in calculation of twophase flow in the cyclone separator.

数值模拟算法、湍流模型及其在旋风分离器内部气固两相流动计算中的应用。2。

The SIMPLE method is applied in the calculations of Reynolds averaged flow equation and к-εturbulence equation. By using DPIV system and pressure difference gauge, the detail measurement of water flow in the horizontal plane of fork tube is made.

计算中选择SIMPLE方法求解三维雷诺平均方程和k-ε两方程湍流模型，实验采用数字图像测速系统和在试验段前后断面上安装液体差压计对三岔管中心的水平面内的压强差进行测量。

It also derives calculation formulas of various dispersed coefficient to set up three-dimensional turbulence model of draft tube and confirm the solving method.

对流场控制方程及三维湍流模型进行了深入的分析与研究，导出了通用微分方程，用有限体积法推导了通用微分方程的离散形式，并导出了各种离散系数的计算公式，建立了尾水管的三维湍流模型，并确定了求解方法。

Finally, separation flow, secondary flow and multi-scale eddy structure are simulated, it indicates that SST model can give a good prediction of turbulence in the draft tube.

计算获得了分离流、二次流和多尺度旋涡结构，表明SST模型能很好地预测尾水管内的湍流流动。

The research indicates that using the non-steady RNS turbulence model can predict the frequency characteristics of the pressure pulsation in draft tube and the result close agreement with the field test.

研究结果表明，采用非定常雷诺应力湍流模式可以预测到尾水管内水压力脉动的频率特性，与现场试验的结果符合。

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。

No other bird of prey has these spikes. The leading edge of an eagle's wing is smooth. As the eagle flies, its wings cut through the air creating turbulence .

老鹰的翅膀外缘是平滑的，老鹰飞翔时，双翼在空气中拍动造成乱流，乱流又产生大量的声波形成飞行时的噪音。

On the age in that turbulence in China, that is to ages to the reality is to the traditional aggro.

在中国那个动荡的年代，那是对时代对现实对传统的抗争。

Silent-Pipe 3has the so-called design :inner turbulence fluid mechanics design, which use theturbulence principle , radiator is collection from several layers with different form and length, which converts the airflows in turbulent flows.

沉默的管道干线的所谓设计：内部动荡流体力学设计，利用动荡的原则，散热器是征收从以下几个层次不同的形式和篇幅，它能使空气流动的湍流。

Our first clue to the approaching turbulence comes right at the keyboard's intro, two open fifth intervals spaced an augmented fifth apart arpeggiate creating a texture of tension.

首先，得知这种混乱的第一个线索从键盘弹奏的引序曲段就可得知；两个五度广位音程，被一个增五度音程分解和弦间隔，营造出紧张的架构。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。