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-   -   modelling intake restrictor (http://www.cfd-online.com/Forums/star-ccm/69857-modelling-intake-restrictor.html)

robbieleeson November 6, 2009 16:29

modelling intake restrictor
 
Hi all,

Just wondering which physics models i should be choosing to model an intake restrictor (used after the throttle of an intake for an engine).

The basic shape is a convergent divergent nozzle and from this i've calculated that with change of density due to pressure change, i can achieve 312m/s rather than the speed of sound.

Obviously i need to try and model the restrictor to achieve this, however with what i've tried so far i get results of 4-500 m/s.

any advice?

Maddin November 7, 2009 06:58

As far as I know CCM doesn't limit the flow speed.
You should your mass flow or what ever you have.


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