论文标题
稀释气及其混合物的散装粘度
Bulk viscosity of dilute gases and their mixtures
论文作者
论文摘要
在这项工作中，我们使用Green-Kubo方法研究各种稀释气体及其混合物的块状粘度。首先，我们通过估计氮气的四种不同同位素的散装粘度来研究原子质量对稀释型气体块状粘度的影响。然后，我们研究添加贵重气体对稀氮气块粘度的影响。我们认为氮与三种贵重气体的混合物，即霓虹灯，氩气和krypton在纯氮与纯贵重气体之间的八种不同组合物中。随后，估计各种组合物的纯氧和氮和氧混合物的块状粘度。在这种情况下，考虑了三种不同的构图，即25 \％n $ _2 $ + 75 \％o $ $ _2 $，50 \％n $ _2 $ _2 $ + 50 \％o $ $ _2 $和78 \％n $ _2 $ _2 $ + + + 22 \％\％o $ $ _2 $。最后一个组成的目的是代表干燥的空气。还提供了研究整个流动情况分析中纳入大量粘度的影响的作品的简要回顾。
In this work, we use the Green-Kubo method to study the bulk viscosity of various dilute gases and their mixtures. First, we study the effects of the atomic mass on the bulk viscosity of dilute diatomic gas by estimating the bulk viscosity of four different isotopes of nitrogen gas. We then study the effects of addition of noble gas on the bulk viscosity of dilute nitrogen gas. We consider mixtures of nitrogen with three noble gases, viz., neon, argon, and krypton at eight different compositions between pure nitrogen to pure noble gas. It is followed by an estimation of bulk viscosity of pure oxygen and mixtures of nitrogen and oxygen for various compositions. In this case, three different composition are considered, viz., 25\% N$_2$ + 75\% O$_2$, 50\% N$_2$ + 50\% O$_2$, and 78\% N$_2$ + 22\% O$_2$. The last composition is aimed to represent the dry air. A brief review of works that study the effects of incorporation of bulk viscosity in analysis of various flow situations has also been provided.
