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Regions not converged

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Old   October 10, 2019, 05:22
Unhappy Regions not converged
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Srikar
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Hello,

I am performing a chtMultiRegionSimple foam case and i get the note: "Regions not converged after 20000 iterations."

The solution has become stagnant and the residual quite low, still it shows the note at the end.

The result looks to have reached saturation at T=3788, from then it gives same values till 20000th iteration. Please find the excerpts from the log file.

Kindly help!!

Quote:
Time = 3788

Solving for solid region smallSolid
GAMG: Solving for h, Initial residual = 9.45742e-07, Final residual = 9.45742e-07, No Iterations 0
Min/max T:350.54 400

Solving for solid region bigSolid
GAMG: Solving for h, Initial residual = 1.02503e-06, Final residual = 2.61465e-09, No Iterations 1
Min/max T:300 368.467
ExecutionTime = 55.19 s ClockTime = 56 s

Time = 20000

Solving for solid region smallSolid
GAMG: Solving for h, Initial residual = 9.91917e-07, Final residual = 9.91917e-07, No Iterations 0
Min/max T:350.54 400

Solving for solid region bigSolid
GAMG: Solving for h, Initial residual = 9.96867e-07, Final residual = 9.96867e-07, No Iterations 0
Min/max T:300 368.467
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chtmultiregionsimplefoam, heat transfer, openfoam v5, steadystate

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