drag reduction的例句大全

A Theoretical Study of Drag Reduction by Aeration in Pipe Flow

圆管流掺气减阻理论研究

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Recent Developments in Research on Mechanism of Drag Reduction of Dilute Polymer Solutions

高分子稀溶液减阻机理的研究进展

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Based on theoretical analysis, microbubble drag reduction is due to structure change of turbulent boundary layer caused by the microbubbles.

理论分析提出微气泡降阻机理在于其引起湍流边界层结构的变化；

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The effect of Afterbody devices on drag reduction

机身后体装置对阻力的影响

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The present results clearly indicate that the valleys are able to increase the viscous sublayer thickness which implies a drag reduction.

实验中发现：沟槽能够增加粘性底层的厚度，减小壁面剪切力，有减阻效应。

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Applying drag reduction and heat transfer reduction model into different starting point assumption of the buffer layer, it is seen that the effect of this starting point is slight in the low drag reduction regime.

将减阻和传热模型应用于不同的缓冲层起点假设，结果表明在低减阻时，缓冲层起点的高低对减阻和传热的影响不大。

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Experimental Investigation on Drag Reduction of Wavy Cylinder in Cross Flow

波状圆柱绕流减阻的实验研究

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Along with the development of energy-saving society, pipeline undercoat drag reduction technology becomes more widespread concern.

随着节能型社会的发展，输送管道内涂层减阻技术越来越受到广泛的关注。

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Bionic Study of Drag Reduction between Air and Non-Smooth Surface of Blunt Body of Revolution Model

空气&旋成钝体界面非光滑减阻的仿生研究

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A primary investigation of drag reduction and mechanism for a blunt body of revolution with slanted base

斜切尾钝头旋成体的减阻及其机理的初步研究

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The results are meaningful for explaining the mechanism of drag reduction from submicroscopic level.

所得结果对于从亚微观层次解释减阻机理有实际意义。

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Theoretical and Experimental Study to Mechanism of Aerodynamic Drag Reduction of Container Truck with#-Shaped Fences

集装箱货车加装井字型格栅减阻的机理研究

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Since Toms found the turbulence drag reduction induced by the polymer, a lot of researches have been done on this topic, but the drag reduction mechanism is still remained under debate.

自从Toms发现高分子湍流减阻效应以来，对其减阻机理已开展了大量的研究，但是一直没有定论。

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The results indicated that the convection movement of secondary vortex is the main reason of riblet drag reduction.

计算结果表明：沟槽内部二次涡的对流作用是沟槽减阻的主要原因。

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In addition, this disturbance technique can reduce the drag of the disk, and the maximum drag reduction is up to 9% of that of the isolate disk. The corresponding drag of the cylinder-disk system can be reduced by about 4%.

此外，利用这种干扰方法，可以降低圆盘阻力，实验得到圆盘阻力可减少约9%，相应的圆柱/圆盘系统的阻力可减小4%。

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In some certain range, the drag and heat transfer of fluid are reduced with the increasing of drag reduction parameter D. The drag reduction up to 75.6%, and heat transfer reduction up to 73.9% are obtained. 4.

在一定范围内，随着减阻参数D的增加，流动的阻力和传热性能降低。数值模拟出的最大减阻率和传热降低率分别为75.6%和73.9%。

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Working area for drag reduction agents ( DRA) is in turbulence area, and it can reduce resistance as well as increase transportation effectively.

减阻剂的作用区域在流体的湍流区，它能有效的降低流体阻力增加流量。

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The site application results show that applying HG DRA not only obtain satisfactory drag reduction effectiveness and increase transportation capacity of pipeline, but also ensure the safe operation.

现场应用结果表明，添加HG减阻剂不仅具有较好的减阻效果和增输能力，提高了输送的经济效益，同时保证了输油生产安全平稳运行。

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With the rapid development of petroleum industry, high molecular polymers as drag reduction agents ( DRA) have been widely used in conduits during the transportation of crude oil.

随着石油工业的发展，超高分子量聚合物作为原油输送减阻剂在国内外输油管线中得到日益广泛的应用。

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The influence of tail shape on drag reduction of base bleed

尾部外形对底部排气弹减阻性能的影响

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