查询词典 turbulence

In this work, Large Eddy Simulation and standard k-εturbulence model were employed separately to simulate a round and a elliptic turbulent jet in cross flow with the Reynold number of 16600. The numerical results of the trajectory show a good agreement with the previous experimental data.

在空气分级和煤粉再燃技术中，OFA射流和再燃射流的穿透深度，以及与主烟气之间的混合扩散情况是脱硝率的重要影响因素，对这两股射流的流动规律进行研究是很有必要的，OFA射流和再燃射流都属于典型的横流中的射流(JICF：jet in cross flow)。

Distribution of mean velocity, distribution of turbulence intensity and microstructure of turbulent boundary layer of riblet surface were obtained.

针对脊状表面流场的特点，通过实验测量和数值模拟的方法对脊状表面微观流场进行了深入研究，获得了脊状表面湍流边界层的时均速度分布曲线、湍流度分布曲线和微观流场结构。

Experimental results show that riblet surface changes field flow structure of boundary layer, restrains turbulent variance, debases turbulence intensity, brings on drag reduction effect and preparation of riblet surface using quasi-LIGA technology is feasible.

试验结果表明，脊状表面改变了边界层内的流场结构，抑制了湍流脉动，降低了湍流度，达到了减阻效果。同时，利用准LIGA成形技术制备脊状表面的方法是可行的。

The results showed that compared with smooth surface, there was secondary vortex in micro flow field;, the viscous sub-layer in the near region of riblet surface was thicker; turbulence intensity was depressed and riblet surface was hydrophobic.

研究表明，与光滑表面相比，脊状表面微观流场结构中存在2次涡，近壁区的黏性底层厚度比平板的要厚得多，湍流度显著降低，且脊状表面表现出明显的疏水性。

The results showed that compared with smooth surface, there was secondary vortex in micro flow field, the viscous sub-layer in the near region of riblet surface was thicker; turbulence intensity was depressed and riblet surface was hydrophobic.

研究表明，与光滑表面相比，脊状表面微观流场结构中存在"二次涡"，近壁区的黏性底层厚度比平板的要厚得多，湍流度显著降低，且脊状表面表现出明显的疏水性。

The shaker includes a dual mass flywheel and the rotate and pendulum driven mechanism; in the rotate and pendulum driven mechanism, the rotary cylinder body of the rotatable hydraulic rotary cylinder (8) is connected with the sub flywheel (15) connecting with the main flywheel (13) and a rotary cylinder shaft (4) at the same side through a transmission sleeve (11) connecting to the rotary cylinder right end cover (9); a torsional transducer (10) and a turbulence iron core of an angular sensor (12) are arranged on the sub flywheel shaft, a winding of the angular sensor is positioned on the transmission sleeve fixedly connected with the main flywheel.

该激振器包括双质量飞轮及其旋转和扭摆驱动机构；所述旋转和扭摆驱动机构，其旋转液压摆缸(8)的摆缸体通过与摆缸右端盖(9)相连的传动套(11)，在同侧与主飞轮(13)和与摆缸轴(4)相连的次飞轮(15)相连接；扭矩传感器(10)及摆角传感器(12)的扰流铁芯装在次飞轮的轴上，摆角传感器的线圈装在与主飞轮固连的传动套上。

Of a liquid agitated vigorously; in a state of turbulence同义词: roiling , roiled , roily , turbulent

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Disruptive, riotous, troubled, tumultuous2. agitated vigorously; in a state of turbulence同义词:churning, roiling, roiled, roily

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Based on computational fluid dynamics and turbulence model , a numerical study of the turbulent flow field of the metal rotameter is conducted to investigate the mechanism of metal rotameter.

为深入研究金属管浮子流量计的工作机理，采用计算流体力学和流体力学中湍流模式理论，对金属管流量计流场进行了数值仿真研究，获得了低黏度流体介质中浮子受力及浮子在受力平衡下的流量。

The calculation of the rotordynamic coefficients of a multistepped annular seal in hydraulic turbines is discussed in this paper. Based on the Hirs' turbulence lubrication theory and the bulk flow model, the governing equations for the flow in the seal are developed by using the Moody's friction equations. The governing equations are perturbed when the rotor and the stator are coaxial. The Runge Kutta integration method and the Newton Raphson iteration method are used to solve the perturbation equations....

本文首先在Hirs紊流润滑理论的基础上，采用体积流动模型及Moody摩擦方程建立起阶梯口环水封中流体流动的控制方程，将各个方程在转子与定子同心处进行摄动，采用Runge－Kuta积分法及迭代过程求解摄动方程，建立起水轮机阶梯式口环水封的转子动力特性系数的计算方法，为水轮发电机组轴系的动力学分析提供了必要的理论基础。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。