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no residual information for velocity in simpleFoam |
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#1 |
Senior Member
Robert Castilla
Join Date: Apr 2009
Location: Spain
Posts: 110
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Hi,
I have recently seen a weird behaviour of simpleFoam solver. I shows only information for p equation residuals, but not for velocity: ... Time = 8e-07 GAMG: Solving for p, Initial residual = 6.50381e-05, Final residual = 6.347283e-09, No Iterations 76 GAMG: Solving for p, Initial residual = 0.000211505, Final residual = 1.97172e-08, No Iterations 37 GAMG: Solving for p, Initial residual = 9.692022e-05, Final residual = 8.045532e-09, No Iterations 24 GAMG: Solving for p, Initial residual = 2.10692e-05, Final residual = 2.085201e-09, No Iterations 19 time step continuity errors : sum local = 4.167724e-11, global = 1.860175e-11, cumulative = 1.024744e-10 ExecutionTime = 31.94 s ClockTime = 32 s Time = 9e-07 GAMG: Solving for p, Initial residual = 5.70272e-05, Final residual = 5.510404e-09, No Iterations 74 GAMG: Solving for p, Initial residual = 0.0001498911, Final residual = 1.306778e-08, No Iterations 37 GAMG: Solving for p, Initial residual = 6.914938e-05, Final residual = 5.904203e-09, No Iterations 24 GAMG: Solving for p, Initial residual = 1.56225e-05, Final residual = 1.282677e-09, No Iterations 21 time step continuity errors : sum local = 2.563705e-11, global = 1.243251e-11, cumulative = 1.149069e-10 ExecutionTime = 38.88 s ClockTime = 39 s Time = 1e-06 .... Any information of the reason of that? Best regards Robert |
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#2 |
Retired Super Moderator
Bruno Santos
Join Date: Mar 2009
Location: Lisbon, Portugal
Posts: 10,981
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Quick answer: "system/fvSolution", inside SIMPLE, you have "momentumPredictor" set to "no".
edit: I've added it to the FAQ: http://openfoamwiki.net/index.php/FA...y_equations.3F Last edited by wyldckat; August 10, 2015 at 10:47. Reason: see "edit:" |
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