Re: Turbulence in microflows
- From: "prandtl" <yilijhu@xxxxxxxxxxx>
- Date: 30 May 2006 07:30:50 -0700
Yeah, it looks unlikely turbulence exists at microscales. As in water:
the viscosity is ~ 10^{-5}. At microscales the length scale ~ 10^{-5}
too, so the Reynolds number is at the order of the velocity itself. So
in a channel flow, if assume continuum assumpition is still a good
approximation, the velocity has to be several thousand m/s to get
turbulence -- very much impossible.
HTH. I'm very interested though, if you can find any case of turbulence
at microscales.
Prandtl
.
- References:
- Turbulence in microflows
- From: suraj . jt
- Turbulence in microflows
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