查询词典 swirling

The absolute/convective instability of incompressible swirling flows and the temporalinstability of compressible swirling flows have been fully explored, whereas the absolute/convectiveinstability of compressible swirling fl.

从N－S方程出发，通过正则模方法，研究了超声速尾涡的绝对／对流不稳定性性质。

By using the swirling strength method,the vortex structures excluded the effect of shear were shown clearly,and were concentrated in the coniform area of the central mixing flow field.With increasing Reynolds number,swirling strength increased and the coniform area became narrow.

利用旋涡强度法分析流场清楚地显示出排除了剪切作用的涡结构主要集中在混合层中心的锥形区域，随着Reynolds数的增大，旋涡强度的值不断增大而锥形区域不断变窄。

The paper systemetically investigates the hydrolic properties of the level swirling inner dissipator and the factors which influence on it by model test on the one hand, on the numerical simulation hand, the paper has simulated the swirling flow field in the level discharge tunnel with Anisotropic k-ε Turbulence Model by programming, in addition with Second-moment Renolds Stress Model by utilizing CFX software.

本文一方面通过模型试验的方法系统地研究了水平旋流内消能工流场的水力特性和影响因素；另一方面选取各向异性的K-ε模型和雷诺应力模型，分别用编程的方式和利用CFX软件数值模拟水平旋流泄洪洞内流场。

Through the cold-state and simulation result, the special flow field of the burner can be obtained. It would be adjusting well when primary air nozzle adopting this form of inner-straight and outer-swirling. Inner straight can assure enough distance of jet, outer-swirling can entrain enough high temperature flue gas to burst into flame easily.

从冷态试验和数值模拟两方面可以得出这种燃烧器具有特殊的流场分布，一次风喷口采用这种外旋流内直流形式，兼有直流和旋流的两种特性，且具有很好的调节作用。

The impact pressure of swirling jets, produced by water-cushion swirling abrasive jet nozzle, was measured by continuous shooting images of the symbol in the piezometer tubes.

利用测压排摄像自动读数法，测量了水垫式旋转磨料射流喷嘴所产生旋转射流的冲击压强。

The impact pressure of swirling jets, produced by watercushion swirling abrasive jet nozzle, was measured by continuous shooting images of the symbol in the piezometer tubes.

利用测压排摄像自动读数法，测量了水垫式旋转磨料射流喷嘴所产生旋转射流的冲击压强。

The flow in swirling flow tundish and swirling chamber is simulated in according to similitude theory. The influences of the diameter and height on conglomerating to center and floating are studied and the inclusion removal effect of the swirling chamber is validated.

根据相似原理，模拟漩流中间包及漩流室内钢液的流动，研究了不同漩流室直径、高度对夹杂物在漩流室内向心聚集上浮的影响，验证漩流室对夹杂物的去除效果。

The real tangential velocity fluctuation indicated that there existed an instability of swirling flow in the cyclone.This instability resulted in the rotation center of the swirling flow deviating from the geometric center of the cyclone,which produced the quasi-periodic oscillation of swirling flow and gave the real tangential velocity fluctuation.

瞬时切向速度的变化反映了旋风分离器内旋转流的不稳定性，这种不稳定性导致了旋风分离器内旋转流的旋转中心与几何中心不重合，旋转中心围绕着几何中心摆动，由此造成了瞬时切向速度随时间的类周期的波动变化。

The swirling flow inside the cyclone showed the Rankine vortex characteristics, i e, strong swirling vortex at the central region of the cross-section and weak swirling quasi-free vortex near the wall.

方形旋风分离器内的流动具有Rankine涡的特点，即中心部分为强制涡区，边壁附近是准自由涡区。

For example, pressure,distance,nozzle hole diameter, line-number of swirling object, screw-pitch of swirling object and central hole of swirling object.

考察了工作压力、靶距、喷嘴孔径、加旋件头数、加旋件螺矩、及加旋件中心孔对钻孔效果的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。