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Where is the limit of Flow Simulation in vacuum (space)?

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JETY87

Aerospace
Jan 12, 2013
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Hi,

I am developing a cold gas propulsion system for space. At the moment I am working in a nozzle for the system.

I need to know the limits of SolidWorks Flow Simulation. In my case I need to do the simulations in space conditions (vacuum) but Flow Simulation doesn’t allow vacuum.

I had realize some simulations using an environment conditions of 1x10^-5 Pa but the results obtained are not physically consistent.

Does anyone know if exists a range of environmental pressure where the simulations lost consistence? How can I simulate a vacuum environment without losing physically consistence?



For more details this is and schematic example of my simulation
Schematic.png
 
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