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-   -   Modelling of fluid flowing from a cylinder (http://www.cfd-online.com/Forums/fluent/48137-modelling-fluid-flowing-cylinder.html)

Phil May 5, 2008 13:13

Modelling of fluid flowing from a cylinder
 
Hi there,

I was wanting to model the effect of the dump expansion of fluid from a cylindrical tube into an open space but am having trouble with the approach. Should I just model the cylinder as flowing into a much larger space or is it possible to do this via another method such as a 'free space' boundary condition, etc. I heard that someone at some point modelled it into 'infinite' space but not sure if this is possible. Thanks.

Any help is very much appreciated.

Phil

Ramesh. K May 7, 2008 01:09

Re: Modelling of fluid flowing from a cylinder
 
Infinite space modelling in cfd is a myth. the right thing to do is determine the domian of interest to such an extent which ur hardware can bear.

So, Ur first approach may be correct.


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