What is Knudsen number for molecular flow and viscous flow? What are amines? What is the structure of H_2P_2O_6? What is a condensation polymer? Which kind of graph would be best to use with these data? What is the name and class of Br-CH2-CH2-CH3?
In that case, the fluid is referred to as a continuum. The ratio of the mean free path, λ, and the representative length scale, L, is called the Knudsen number, Kn=λ/LThe NS equations are valid for Kn<0.01. For 0.01<Kn<0.1, these equations can still be used, but they require ...
aKnudsen (who first discovered flow properties in micro-channels) as well as others (\a) suggest that the "classical" continuum range are not valid for Kn> 0.01. Kn >= 1 is transitional to the molecular flow regime 正在翻译,请等待...[translate] ...
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is simply how far it travels, on average, before hitting another gas molecule. To quantify this, you can compute the Knudsen number, which gives you a quick indication of what type of flow you’re looking at. The Knudsen number, Kn, is the mean free path divided by a typical length ...
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In packaging, especially for ecommerce companies, there is an increased focus on sustainability, reducing packaging void (shipping air)and other waste, and improving the unboxing experience. This is driven partly by regulatory actions about packaging waste, but is also important to brands/retailers ...
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