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Forum: OpenFOAM Running, Solving & CFD

October 24, 2005, 14:06

Replies: 7

Solver details

Views: 4,522

Posted By mattijs

"not bounded above" : no upper

"not bounded above" : no upper limit for the variable. k does not have an upper value. E.g. a phase fraction (e.g. 'gamma') does.

"bounded below by zero" : k cannot go negative.

Forum: OpenFOAM Running, Solving & CFD

July 25, 2005, 11:45

Replies: 7

Solver details

Views: 4,522

Posted By mattijs

Implicit source can be more st

Implicit source can be more stable.

Its only use is to create a larger diagonal term (to aid the solver) so it only can be used if the linerization of the source term has a negative dependency...

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