modelling intake restrictor

robbieleeson · November 6, 2009, 16:29

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.

November 6, 2009, 16:29	modelling intake restrictor	#1
robbieleeson New Member Join Date: Nov 2009 Posts: 1 Rep Power: 0	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?

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November 7, 2009, 06:58		#2
Maddin Senior Member Join Date: Mar 2009 Posts: 260 Rep Power: 18	As far as I know CCM doesn't limit the flow speed. You should your mass flow or what ever you have.