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Forum: FLUENT

May 3, 2013, 09:55

Replies: 15

Vacuum in FLUENT

Views: 11,887

Posted By RodriguezFatz

Have a look at: ...

Have a look at:
http://en.wikipedia.org/wiki/Mean_free_path
Take the first formula of section "mean free path in kincetic theory" and put in your gases density and collision cross section! ...

Forum: FLUENT

May 3, 2013, 09:23

Replies: 15

Vacuum in FLUENT

Views: 11,887

Posted By RodriguezFatz

Please read the posts of this thread and you will...

Please read the posts of this thread and you will see that it is absolutely senseless to use Fluent for this case.

Forum: FLUENT

January 18, 2013, 02:18

Replies: 15

Vacuum in FLUENT

Views: 11,887

Posted By RodriguezFatz

To all your questions: Knudsen number is the...

To all your questions:
Knudsen number is the mean free path for atom/molecule collisions divided by the size "L" of your domain. It means: How many collisions occur, when a particle travels through...

Forum: FLUENT

January 17, 2013, 04:35

Replies: 15

Vacuum in FLUENT

Views: 11,887

Posted By RodriguezFatz

No, he wasn't. No one can do that. Fluid...

No, he wasn't. No one can do that. Fluid equations without any fluid just don't make any sense at all.

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