Plug flow

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In fluid mechanics, Plug Flow is a simple way of modelling flow of a fluid in a pipe or, more generally, a reactor. Essentially no back mixing is assumed with "plugs" of fluid passing through the reactor. This results in differential equations that need to be integrated to find the reactor conversion and outlet temperatures.

Other simplifications used are perfect axial mixing and a homogeneous bed structure.

Image:Plugflow.jpg
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