azonenberg changed the topic of #homecmos to: Homebrew CMOS and MEMS foundry design | Wiki: http://homecmos.drawersteak.com/wiki/Main_Page | Repository: http://code.google.com/p/homecmos/ | Logs: http://en.qi-hardware.com/homecmos-logs/
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<nmz787> I thought the laminar flow was because of similarities in density or the fluids' reynolds number
<nmz787> i.e. that effect would be disrupted further downstream of the mixing point, the faster the more dissimilar the fluid characteristics were
<nmz787> (I am not classically trained in this, and have been slacking on reading my hardcopy of this https://www.amazon.com/Electrokinetically-Driven-Microfluidics-Nanofluidics-Hsueh-Chia-Chang/dp/0521860253/ )
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<SpeedEvil> If your fluids are water and oil, in two sets, mutually immiscible, you can have the flow persist perhaps as long as you like.
<SpeedEvil> If they are water and alcohol, they will immediately and very rapidly dissolve in each other.
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* mrdata throws an emulsifier into the water+oil mixture
<nmz787> SpeedEvil: I definitely lack experience, but my reading always seems to indicate needing micromixers even for things like water+alcohol... if you want them to mix fast at least
<SpeedEvil> Diffusion happens faster the smaller the scale.
<nmz787> umm
<nmz787> what?
<nmz787> I thought diffusion is temperature dependent
<SpeedEvil> To be clearer, if you place two liquids next to each other, the diffusion rate is constant rate, but if you make the two streams a thousand times thinner, the diffusion so that the streams are well mixed is much, much faster
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