hi community,
I would like simulate the pump down graph of my vacuum pump.
My first test is to use laminar flow, create an air cube of 1m^3 and add a vacuum pump on a side.
The specificity of the vacuum pump is :
flow (m^3/s) pressure(mbar)
1 1333
1 0.8
0 0.8
Normally the simulation would lead to a graph with a decrease from atmosphric pressure to 0.8 mbar. But in my case i have a flat graph at 0.8 mbar.
Can anyone help me ?
Alessio Pricci
Honestly, I do not know... maybe you are simulating the Steady State (stationary solver, in Comsol) and You find only the final pressure value.
Check; if this is the problem, the right solver is the Transient one and a proper time step can be defined.
Best regards,
AP
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