[mahendra]

Dear Sandeep Hi !!!

I was wondering as to how to use the "icoDyMFoam", I want to try the mixerVessel2D case from MRFSimpleFoam to be solved by using icoDyMFoam. But I am not getting how to initiate the case??
Do you have any cases which explains how to use "dynamicMeshDict" and also how to download the cases form threads like this.

Regards,
Mahendra.

[patriem]

Hello Community,

to continue the latest posts, i want to ask a final question concerning the mentionend topics:

- Can i run movingConeTopo from above under OF1.5 or OF1.4.1?

- If not, can i change/add files in that versions in order to run the file or do i have to install a dev-Version?

Thank you very much for a short info
Regards,
Patrick

[patriem]

According to my last post, here the error messages when trying to start movingConeTopo (from the above)

in OF1.4.1:
--> FOAM FATAL IO ERROR : keyword laplacian(rAU,pcorr) is undefined in dictiona ry "/opt/OpenFOAM/caelinux-1.4.1/run/movingConeTopo/./system/fvSchemes::laplacia nSchemes"

file: /opt/OpenFOAM/caelinux-1.4.1/run/movingConeTopo/./system/fvSchemes::laplac ianSchemes from line 44 to line 47.

From function dictionary::lookupEntry(const word& keyword) const
in file db/dictionary/dictionary.C at line 146.




and in 1.5:
#0 Foam::error::printStack(Foam::-Ostream&) in "/home/wops/OpenFOAM/OpenFOAM-1.5/lib/linuxGccDPOpt/libOpenFOAM.so"
#1 Foam::IOerror::abort() in "/home/wops/OpenFOAM/OpenFOAM-1.5/lib/linuxGccDPOpt/libOpenFOAM.so"
#2 Foam::dictionaryEntry::stream() const in "/home/wops/OpenFOAM/OpenFOAM-1.5/lib/linuxGccDPOpt/libOpenFOAM.so"
#3 Foam::dictionary::lookup(Foam::word const&, bool) const in "/home/wops/OpenFOAM/OpenFOAM-1.5/lib/linuxGccDPOpt/libOpenFOAM.so"
#4 Foam::PBiCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/home/wops/OpenFOAM/OpenFOAM-1.5/lib/linuxGccDPOpt/libOpenFOAM.so"
#5 Foam::fvMatrix<foam::vector<double> >::solve(Foam::Istream&) in "/home/wops/OpenFOAM/OpenFOAM-1.5/applications/bin/linuxGccDPOpt/icoDyMFoam"
#6 Foam::lduMatrix::solverPerformance Foam::solve<foam::vector<double> >(Foam::tmp<foam::fvmatrix<foam::vector<double> > > const&) in "/home/wops/OpenFOAM/OpenFOAM-1.5/applications/bin/linuxGccDPOpt/icoDyMFoam"
#7 main in "/home/wops/OpenFOAM/OpenFOAM-1.5/applications/bin/linuxGccDPOpt/icoDyMFoam"
#8 __libc_start_main in "/lib/i686/cmov/libc.so.6"
#9 Foam::regIOobject::writeObject(Foam::IOstream::str eamFormat, Foam::IOstream::versionNumber, Foam::IOstream::compressionType) const in "/home/wops/OpenFOAM/OpenFOAM-1.5/applications/bin/linuxGccDPOpt/icoDyMFoam"

the same as rene payri. is there a simple possibility to modify one of these versions?

regards,
patrick

[hjasak]

Under Question 1, the answer is No and No.

Under Question 2, the answer is yes, but it will hurt. In retro-fitting changes, you are on your own. It would be easier to simply compile a complete -dev source code.

Good luck,

Hrv

[marico]

Hi,

has anyone positive experience with using funkySetFields for setting displacement boundary conditions? For example the movement of a piston, depending on time...

Thanks for your help
Marco

[norman1981]

Dear OpenFOAM users,

I modified the movingConeTopoFvMesh class and the movingConeTopo tutorial to make the cone moving in Z direction.
It seems that the tutorial run well in terms of mesh layer addition/removal because it behaves in the same way as the case moving in X direction.
The strange thing occurs on the pressure and velocity fields at the time step 7 and 8: here these quantities are really different comparing them between the two cases (see pictures), while they looks really similar in the rest of the simulation (see picture at time step 6 as ex).

Has someone an explanation about this behaviour?

I have also attached the blockMeshDict file and the modified movingConeTopoFvMesh class (movingPlungerTopoFvMesh).

Thank you

Regards

Norman

[kilroy]

Hello,

I have just gone through the OpenFOAM's movingCone tutorial. I can see that, as the object moves to the right side, mesh on the right side is contracting and the mesh on the left side of the object is expanding. Please see the pictures attached (movingCone_initial.png and movingCone_last.png)

movingCone_initial.jpg

movingCone_last.jpg


After that, I tried to apply the same principles to a ship traveling through calm water making a 45 degree angle with the stream. I want to make the ship move 4 times the length of the ship, but my run crashes a little bit after the start. I think that is because the distortion of the mesh. Please see the pictures attached (ship_initial and ship_last)

ship_initial.jpg

ship_last.jpg


Do you know if there is a way to overcome that distortion problem? (Like updating and recreating the mesh in each step)

Thank you very much for your help in advance,

Kilroy

[deep shekhawat]

Dear
Can you tell me how to couple pimpleDymfoam and solidDisplacementFoam for simulation of FSI problems. It will be very useful for me. Also, please tell me about other methods to solve FSI problems like cantilever in cross flow.
Thank You

[khatereh]

hi,
i tried to download attached file,but it downloaded with UNK format!!!!!!!!!!
it dose not open in ubuntu
please email for me this file,
thanks alot
my mail:kh_akbarnezhad@yahoo.com
---------------------------------------------------------------------------------------------

Originally Posted by idosil

Hi Hrv,

1) your model movingConeTopo works fine.

2) I have looked around and made a model to study the dynamic mesh solver movingValveLayersFvMesh. At first I had problem with boundary conditions on the sliding faces but later have been able to resolve it. The case is given in the attached file movingValve.tgz .

Bye, Ido

[Botari]

REF: Hi Hrv, 1) your model movin

Dear Ido,

how can I get the attached file (movingValve.tgz)? I tried to download but the link give me a file named movingValve-5423.unk

Thank you,
Tiago

[hamedhiv]

Originally Posted by khatereh

hi,
i tried to download attached file,but it downloaded with UNK format!!!!!!!!!!
it dose not open in ubuntu
please email for me this file,
thanks alot
my mail:kh_akbarnezhad@yahoo.com
---------------------------------------------------------------------------------------------

you can simply rename .unk file to .tgz