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Showing results 1 to 8 of 8 Search took 0.00 seconds. Search: Posts Made By: jpo

Forum: FLUENT June 3, 2010, 17:59

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo kkostas1982, I guess it depends what is your... kkostas1982, I guess it depends what is your Reynolds number. Please read http://en.wikipedia.org/wiki/Reynolds_number And also the thread...

Forum: FLUENT June 3, 2010, 17:56

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo Ali, yes, it works now that I have... Ali, yes, it works now that I have "perfectly smooth" walls. The link you posted is a GNU-licensed free textbook and is really helpful. Now I can continue and work with "no slip" walls and...

Forum: FLUENT June 3, 2010, 09:01

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo Ali, thank you very much for the link. It is a... Ali, thank you very much for the link. It is a very nice and detailed treatment of supersonic flows in a pipe. So far, I used "no slip" walls for my pipe in Fluent. Now if I set "zero shear...

Forum: FLUENT June 2, 2010, 14:50

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo The position of the normal shock should depend on... The position of the normal shock should depend on inlet conditions and pipe length. For fixed inlet conditions there exist L* such that if pipe length L > L*, normal shock will occur around the pipe...

Forum: FLUENT June 2, 2010, 10:57

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo Dear Ali, many thanks for your... Dear Ali, many thanks for your suggestions... Set ambient to zero, do FMG initialization, run. Increment inlet mass flux, run again. This is what happens: Initially, outlet flow is...

Forum: FLUENT June 1, 2010, 20:09

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo Thank you; I tried negative/low outlet pressure,... Thank you; I tried negative/low outlet pressure, but it didn't work. "A real-life supersonic wind tunnel, for example, will not "start'' if the back pressure is simply lowered to its operating...

Forum: FLUENT May 30, 2010, 11:50

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo According to Fluent manual, "the flow must be... According to Fluent manual, "the flow must be initialized to a supersonic flow or it will simply choke and remain subsonic" I tried setting my inlet to mass-flow-inlet, pressure-inlet and...

Forum: FLUENT May 28, 2010, 16:29

Replies: 15 Trying to achieve supersonic flow in a pipe Views: 8,605 Posted By jpo Trying to achieve supersonic flow in a pipe Hello I am trying to create supersonic flow in a pipe. I have mass-flow-inlet and pressure outlet at exit. Pressure outlet setting should be ignored by the solver and extrapolated from the...

Showing results 1 to 8 of 8

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