层流

Laminar flow enhances endurance by maximizing the lift-drag ratio.

层流可以通过最大化升阻比来改进航程。

In the last two area, heat transfer in narrow annuli is better than that in normal circular tubes.

在层流充分发展区和紊流区，窄环隙的对流换热特性要好于普通圆管。

By using volume control method, the basic equations of axial laminar flow for power law fluids in eccentric annuli was seperated and sovled by ADI method.

利用控制体积法对幂律流体偏心环空轴向层流流动的基本方程进行了离散化处理，并用ADI方法进行了求解。

Flow through cannulae is not laminar at the upper range of clinically used flows, therefore Poiseuille's law is not useful in predicting flow and the effect of changing radius is less than commonly believed.

通过套管的血流在较高范围的临床使用流量内不是层流，因此泊素叶法则在预测流量上不适用，改变套管半径的效果比通常相信的要小。

Then, colorized mappings of the distribution of the streamline, blood pressure, and shear stress were performed.

然后，以彩色地图对层流分布、血压和切应力进行标记。

The volume of air,propane and nitrogen was measured by laminar flowmeter and float valve flowmeter.

最后得到氮气稀释条件下丙烷空气混合气的层流火焰速度随稀释率的变化曲线

The microstructure of circumfluence and the characteristic of the mixing intensity on the cross-section of thermally stratified shear flow in curved flumes are studied experimentally.

对弯段温差剪切分层流的断面环流微细结构与掺混强度特征进行了试验研究。

The highest heat transfer coefficient for air flowing in the nine 3-D IFT with staggered arrangement fins is No9 tube. In the turbulent region, the heat transfer coefficient of No9 tube is a factor of 10.36 compared with smooth tube, and its thermodynamic performance coefficient is as high as 6.49; The average Nusselt number in the most superior 3-D IFT with staggered arrangement can be increased by about 1.04 times in the laminar flow, and 6.38 times in the transitional flow as compared with that in the smooth tube. The friction factor between fluid and tube wall can be 0.96 times in laminar flow, and 12.68 times in transitional flow as compared with that inside the smooth tube.

在进行实验的九根肋叉排三维内肋管中，换热最强的No9管与光管相比，在紊流区的换热强化比平均可达10.36倍，阻力增大比约为4.06倍，其热力性能系数高达6.49；在过渡流区的换热强化比平均可达6.38倍，同时阻力增大比约12.68倍；在层流区的换热强化比为1.04倍，而阻力增大比仅约0.96倍。

To achieve the same final cooling temperature at constant cool-down different laminar cooling patterns play important roles in the cool-down rate along plate gauge and temperature distribution.

同等冷却速度下，为了达到相同的终冷温度，不同的层流冷却方式对中厚板厚度方向的冷却速度和温度分布产生重要的影响。

Results showed that the overland flow pattern has close relationship with the grass cover and water inflow rate, it changed from the laminar and tranquil flow to the transition flow and tranquil flow for the grass-covered sloping segment with increasing water inflow rate, but it was almost transition flow and tranquil or rapid flow for the sloping segment without grass cover.

结果表明，坡面流流态与放水流量和草被覆盖关系密切，随流量的增大草被覆盖断面坡面流流态由层流－缓流转变为过渡流－缓流，而无草覆盖断面的流态几乎都处于过渡流－缓流或急流状态；沟坡径流大都属于过渡流－急流状态，试验过程中，草被覆盖断面的径流雷诺数和弗汝德数变化很小，无草被覆盖断面径流的雷诺数呈逐渐增加趋势，而弗汝德数呈逐渐减小的变化趋势。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。