how define separation efficiency with transient time (unsteady) in cyclone -- CFD Online Discussion Forums

November 21, 2013, 08:26

how define separation efficiency with transient time (unsteady) in cyclone

Marko79

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Marek

Join Date: Mar 2012

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hello
I do research on cyclones in the program Fluent. I used a steady time. I defined separation efficiency by the difference of particles trapped and escaped in Reports menu - Discrete Phase - Sample (Fig 1). Now I want to go to the unsteady flow of time, but do not know how to define the separation efficiency in this case. In the Reports menu - Discrete Phase - Sample is the only option to start and stop, it is impossible to calculate the particles that are trapped and which escaped.
Thanks you for any advice

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