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simulationType Laminar but RASProperties file included

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Old   October 24, 2015, 17:57
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  #21
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Bruno Santos
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Hi Nikola,

Sorry for the really late reply. I've had this post of yours on my to-do list and only today did I finally take a look into this.

Quote:
Originally Posted by Nkl View Post
So, as far as I understand now, in this way what we see when displaying the results it's just half of the pipes geometry?
Yes.

Quote:
Originally Posted by Nkl View Post
Regarding the definition of something that is infinite, isn't this done by applying the Cyclic boundary on the rightLet and leftLet? What we want is an infinite wall in those directions, right?
Yes, the "rightLet" and "leftLet" patches are where we would want the cyclic boundary condition for making it act as an infinite wall. I like to think of this as matter teleportation with conservation of momentum and continuity... i.e. a portal

Using the symmetry plane is mostly an alternative to using the boundary condition "slip", which sort-of represents infinity in the sense of "well, everything else beyond this boundary is identical in profile (gradient) to whatever is acting on this surface". It's in contrast to defining a zero gradient boundary condition, which enforces that the value on the face is identical to the cell centre, which means that enforces a constraint that can affect the results in an unwanted way, sort of like bending the tip of a straw.

Best regards,
Bruno
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Old   July 14, 2017, 08:43
Default Error in OF 1606+ Windows version
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Amod Kumar
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Hello,
I downloaded the file and run Allrun which worked file. The chtMultiRegionSimpleFoam erred. Following is the terminal message - a bit difficult to debug for non-programmers

Any comment!

Thanks!

[ofuser@default planeWall2D]$ chtMultiRegionSimpleFoam
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1606+ |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : v1606+
Exec : chtMultiRegionSimpleFoam
Date : Jul 14 2017
Time : 11:40:00
Host : "default"
PID : 451
Case : /home/ofuser/workingDir/of_Simu/planeWall2D
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create fluid mesh for region bottomAir for time = 0

Create fluid mesh for region topAir for time = 0

Create solid mesh for region wall for time = 0

*** Reading fluid mesh thermophysical properties for region bottomAir

Adding to thermoFluid

Selecting thermodynamics package
{
type heRhoThermo;
mixture pureMixture;
transport const;
thermo hConst;
equationOfState perfectGas;
specie specie;
energy sensibleEnthalpy;
}

#0 Foam::error:rintStack(Foam::Ostream&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
#1 Foam::sigFpe::sigHandler(int) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so"
#2 ? in "/lib64/libc.so.6"
#3 Foam::heRhoThermo<Foam::rhoThermo, Foam:ureMixture<Foam::constTransport<Foam::speci es::thermo<Foam::hConstThermo<Foam:erfectGas<Foa m::specie> >, Foam::sensibleEnthalpy> > > >::calculate() in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so"
#4 Foam::rhoThermo::addfvMeshConstructorToTable<Foam: :heRhoThermo<Foam::rhoThermo, Foam:ureMixture<Foam::constTransport<Foam::speci es::thermo<Foam::hConstThermo<Foam:erfectGas<Foa m::specie> >, Foam::sensibleEnthalpy> > > > >::New(Foam::fvMesh const&, Foam::word const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so"
#5 Foam::autoPtr<Foam::rhoThermo> Foam::basicThermo::New<Foam::rhoThermo>(Foam::fvMe sh const&, Foam::word const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so"
#6 Foam::rhoThermo::New(Foam::fvMesh const&, Foam::word const&) in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/lib/libfluidThermophysicalModels.so"
#7 ? in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/chtMultiRegionSimpleFoam"
#8 __libc_start_main in "/lib64/libc.so.6"
#9 ? in "/opt/OpenFOAM/OpenFOAM-v1606+/platforms/linux64GccDPInt32Opt/bin/chtMultiRegionSimpleFoam"
Floating point exception
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Old   July 15, 2017, 02:21
Default Update: on previous post
  #23
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Hello,
Please ignore my previous post on this thread

Without knowing what the error was, I tried to combine the information available at http://openfoamwiki.net/index.php/Ge..._-_planeWall2D

and tutorial folder chtMultiRegionFoam/multiRegionHeater. This time I was able to successfully make the runs. Further, I have tried to explain the insight I got into the problem in the attached file. Hope this will help and any error/suggestions would be highly appreciated.

Regards,
Amod
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Old   July 15, 2017, 02:34
Default File upload again
  #24
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It seems the file did not get uploaded as the file size exceed limit. Even zipping did not work. I have attached 3 files.

The PDF can be downloaded from here
http://www.cfdyna.com/Home/OpenFOAM/...RegionFoam.pdf
Attached Images
File Type: jpg chtMultiRegionFoam_1.jpg (95.0 KB, 7 views)
File Type: jpg chtMultiRegionFoam_2.jpg (75.1 KB, 4 views)
File Type: jpg chtMultiRegionFoam_3.jpg (90.9 KB, 3 views)
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