slip length
英 美
滑移长度
滑移长度
It is found that the initial slip length controls the slip behavior at small shear rate, but the critical shear rate controls the boundary slip at high shear rate.
研究发现初始滑移长度对低剪切率下的滑移行为起主要作用,而临界剪切率决定了高剪切率下的边界滑移程度。
From the view of fluid mechanics, the shear-free air water interface corresponds to a slip boundary condition in fluid and relatives to the concept of effective slip length.
从流体力学的角度来看,这个无剪切界面对应着流体中的滑移边界条件,而与此相关的概念是有效滑移长度。
The velocity field and shear rate distribution are reduced and uniform along with the proper increase of slip length. The die swell and the interface deflexion phenomenon will be reduced effectively.
适当增加流道的长度,可以减小胶料出口处的速度场、剪切速率场的集中程度并使之趋于均匀,能够有效降低挤出胀大和模外熔体偏转流动现象。
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