Mixing: Difference between revisions

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At the most basic level, there are two processes that cause mixing in fluids
At the most basic level, there are two processes that cause mixing in fluids


## Diffusion: the movement of particles from a region of high concentration to low concentration.
# Diffusion: the movement of particles from a region of high concentration to low concentration.
## Advection: the transport of matter by the flow.
# Advection: the transport of matter by the flow.


Advection is more effective.  If you add sugar to your coffee and let it sit it will be sweeter at the bottom, but if you stir it you get uniform distribution.
Advection is more effective.  If you add sugar to your coffee and let it sit it will be sweeter at the bottom, but if you stir it you get uniform distribution.

Latest revision as of 16:35, 1 June 2015

At the most basic level, there are two processes that cause mixing in fluids

  1. Diffusion: the movement of particles from a region of high concentration to low concentration.
  2. Advection: the transport of matter by the flow.

Advection is more effective. If you add sugar to your coffee and let it sit it will be sweeter at the bottom, but if you stir it you get uniform distribution.