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Simulation CFD

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Active Member
mrnfs
Posts: 8
Registered: ‎08-12-2012
Accepted Solution

Vacuum volume

281 Views, 4 Replies
04-18-2013 11:32 PM

How i can create vacuum value in internal volume&

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*Expert Elite*
OmkarJ
Posts: 440
Registered: ‎10-02-2012

Re: Vacuum volume

04-20-2013 12:16 AM in reply to: mrnfs

What do you exactly want to do?

 

OJ

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Active Member
mrnfs
Posts: 8
Registered: ‎08-12-2012

Re: Vacuum volume

04-30-2013 02:58 AM in reply to: mrnfs

Heat transfer Simulation in vacuum.

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Product Support
apolo.vanderberg
Posts: 307
Registered: ‎08-31-2011

Re: Vacuum volume

04-30-2013 11:13 AM in reply to: mrnfs

Depending on what you are trying to do, some have represented Vaccuum as a low density, low conductivity material.

For example if you were planning on doing a thermal model 'in space' we might create a custom fluid material with low density/conductivity so that we can still do internal radiation but not have any flow/conduction through the fluid itself.

 

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*Expert Elite*
OmkarJ
Posts: 440
Registered: ‎10-02-2012

Re: Vacuum volume

05-03-2013 02:57 AM in reply to: apolo.vanderberg

Apollo, 

 

I have observed that most CFD Solvers don't like materials with very low conductivity and density to represent vacuums, ie, they are hard to converge. Is there a value that you recommend as to how much low, without compromising the ease of convergence?

 

OJ

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