查询词典 Reynolds number

According to the design performance aim, we estimate the overall parameters and complete the shape design of two schemes. Normal and tailless layouts are respectively applied. Then we use different airfoil and wing with low Reynolds number and the aerodynamic analysis of the result is achieved.

根据设计性能指标，进行总体参数估算，完成了两种方案的外形设计，分别采用了正常和无平尾的布局形式，进行了不同的低雷诺数翼型和机翼配置，并对设计结果进行了气动分析。

The results show that this kind of roughening elements can possess a wide range of roughness, and the hydraulic resistance decreases with the increase of space between roughness elements, but reduces slowly to a constant, and that flow enters into the turbulently rough zone when Reynolds number reaches about 3 500, in which the hydraulic resistance decreases with increase of relative submergence degree, reducing slowly to a constant too.

通过水槽试验对Y型加糙体阻力特性进行了深入研究。研究结果表明：其糙率具有一个较大的调整范围，且随着加糙间距的增加水力阻力减小，减小的幅度越来越小，最后基本不变；雷诺数在3 500左右水流进入阻力平方区，进入阻力平方区后，随着相对淹没度的增大水力阻力减小，最后达一定值。

The results show that the velocity ratio plays more important role than Reynolds number to influence the aerodynamic parameters of internal cooling passage.

结果表明通道平均雷诺数对通道内和孔内的流场影响较小，速比对通道内和孔内的流场的影响较大。

The Reynolds number has different influence on the pressure coefficient and discharge coefficient under different velocity ratio.

在小速比下，雷诺数对压力系数、流量系数的影响较小，在大速比下，雷诺数对压力系数、流量系数的影响较大。

In the recent 10 years, at the three special fields of dynamic aerodynamics, although the circumferential Reynolds number gap between wind tunnel free flight and its corresponding real flight is as high as one or two magnitudes, wind tunnel free flight experiment results succeed in predicting or reproducing the dynamic aerodynamic characteristics in the three special fields, which appear in the real flight phase producing severe effects on flight security and flight performance.

近10余年来，在3个动态气动专题领域内，地面风洞自由飞实验与对应的天空飞行器的绕流雷诺数虽然相差1～2个量级，但风洞自由飞实验结果多次预测或再现了天空飞行器出现的对飞行安全、飞行性能产生严重影响、其它地面风洞实验方法难以预测或再现的这3个专题领域内的动态气动特性，这至少为3个专题领域内天地动态气动相关中的雷诺数影响，提供了一个新的理解。

The effects of Reynolds number (from 800 to 2 000), the attack angle (30° and 45°) of delta winglet vortex generator are examined.

计算了Re（为800~2000）、三角形小翼型涡发生器的冲角（分别为30°和45°）对管－翅表面平均Nu、压降的影响，并利用场协同原理进行了分析。

The critical aerostatic stability of Sutong Bridge with the Reynolds number effects was calculated by using the compiled program.

分别计算了苏通大桥在低、高雷诺数下的空气静力稳定性。

The rising and deformation of two identical spherical and deformational bubbles moving side by side or in a line in a viscous fluid is studied numerically. The interaction between two bubbles with a wide range of Reynolds number and separation distance is studied.

4对水平和上下放置的球形气泡和变形较大的两个气泡在浮力作用下的上升及变形过程进行了模拟，分析了气泡间距与Re数之间的关系，揭示了气泡融合过程中上升速度的降低与反弹现象。

As for the dehumidify ing conditions, the condensing rate for the humid air increases with Reynolds number but decreases as the inlet temperature of cold water increases.

同时湿盘管的热传量及除湿率亦也随著冰水入口温度的降低而增加，显热比随著冰水温度的降低而减小。

At large Reynolds number, as the basic flow is closer to parallel flow, the nonparallel effect to boundary layer stability becomes insignificant.

在大雷诺数处，由于流动近似平行，非平行性对边界层稳定性的影响很弱。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。