# heat and radiations in a pipe solve with chtMultiRegionSimpleFoam

 Register Blogs Members List Search Today's Posts Mark Forums Read

December 10, 2015, 19:02
heat and radiations in a pipe solve with chtMultiRegionSimpleFoam
#1
Member

laurentL
Join Date: Oct 2011
Location: new caledonia
Posts: 72
Rep Power: 6
Dear thermics Foamers,
i spent quiet a lot of time to set up a classical case, hot fumes (873K) are expelled in a exhaust (at 10m/s) this 3d pipe surrounded by air (300K) here my case:
i don't understand why chtMultiRegionSimpleFoam crach after 3s ... with this message:
Time = 3

Solving for fluid region air
DILUPBiCG: Solving for Ux, Initial residual = 0.1879951, Final residual = 0.000142781, No Iterations 4
DILUPBiCG: Solving for Uy, Initial residual = 0.1167378, Final residual = 1.852967e-05, No Iterations 4
DILUPBiCG: Solving for Uz, Initial residual = 0.1535267, Final residual = 4.351179e-05, No Iterations 4
DILUPBiCG: Solving for h, Initial residual = 1, Final residual = 0.02989284, No Iterations 2

--> FOAM FATAL ERROR:
Maximum number of iterations exceeded

From function thermo<Thermo, Type>::T(scalar f, scalar T0, scalar (thermo<Thermo, Type>::*F)(const scalar) const, scalar (thermo<Thermo, Type>::*dFdT)(const scalar) const, scalar (thermo<Thermo, Type>::*limit)(const scalar) const) const
in file /home/laurent/OpenFOAM//OpenFOAM-2.3.0/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 76.

FOAM aborting
Thank a lot for any help...
Attached Images
 stability pb.jpg (173.8 KB, 7 views) unstable.jpg (69.5 KB, 6 views)
Attached Files
 test10.4.zip (63.7 KB, 2 views)

Last edited by laurent98; December 10, 2015 at 23:06.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post skuznet OpenFOAM Pre-Processing 0 July 1, 2014 17:09

All times are GMT -4. The time now is 22:38.