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-   -   Immersed Boundary Cylinder Tutorial using IcoIbFoam application (http://www.cfd-online.com/Forums/openfoam/131488-immersed-boundary-cylinder-tutorial-using-icoibfoam-application.html)

afrotimy March 16, 2014 00:32

Immersed Boundary Cylinder Tutorial using IcoIbFoam application
 
Hi Everyone,

Good to find out that Immersed Boundary Mesh have been implemented in OpenFoam recently. However, I am trying to run the tutorial on Cavity and Flow around a cylinder with Immersed Boundary Foam in OF2.3.0 but gives so many error messages wheun running it with icoIbFoam command.
Even when I installed d version 1.6-ext, can't still run it.

I have followed the Tutorial procedures and included the additional dictionaries, but can't run.

Tried to run the wmake for compilation, but complains of not seeing octree.H and some other files. Meanwhile, octree.H and .C and in my meshtool directory.

Can anyone who has successfully ran this share more hints with me? I am a up comer.

Many thanks.

wyldckat March 16, 2014 10:10

Greetings Francis,

It's really complicated to help you if you don't indicate which exact tutorial and source code you're referring to, where is it located and/or where you got it from.

edit: I ask this because I have absolutely no idea where such tutorial and solver exist :(

Best regards,
Bruno

Phicau March 17, 2014 04:57

Hi

check this out:

http://www.cfd-online.com/Forums/ope...tml#post459040

AFAIK it is ready to compile and run, but only for 1.6-ext

Best,

Pablo

kmooney April 2, 2014 14:56

I may or may not have a functional 2.3 port of the IB code. I have run some interIbFoam tests which look pretty good but there seems to be some stabiltiy issues. Next step is port the ico solver and see how that performs. I'll try to keep you guys up to date if I make any progress.

kmooney April 2, 2014 15:49

Update: icoIbFoam seems to be working just fine!

Question for anyone reading this:
In order to port this I had to bring over the writeVTKNormals() function from foam extend and add it to the PrimitivePatch class in 2.3. Because of this I had to do a near full recompile of the whole OF install. Is there a more intelligent way to do this? Create a new derived class perhaps?

This was the only change I needed to make to the main foam installation. The rest of the changes were on the IB lib and IB solver side.

wyldckat April 5, 2014 14:07

Greetings to all!

I had this on my to-do list for some weeks now and I've finally come around to git'ifying this source code and creating a wiki page for it:
Anyone and everyone, please feel free to edit the wiki page and fork the repository! ;)


@Francis:
Quote:

Originally Posted by afrotimy (Post 480255)
Tried to run the wmake for compilation, but complains of not seeing octree.H and some other files. Meanwhile, octree.H and .C and in my meshtool directory.

You'll find installation instructions on the wiki page mentioned above, namely: http://openfoamwiki.net/index.php/Ex...y#Installation
Essentially, the missing step is to first run the script Allwclean:
Code:

./Allwclean
./Allwmake

----------------

@Kyle:
Quote:

Originally Posted by kmooney (Post 483513)
Update: icoIbFoam seems to be working just fine!

Nice!

Quote:

Originally Posted by kmooney (Post 483513)
Question for anyone reading this:
In order to port this I had to bring over the writeVTKNormals() function from foam extend and add it to the PrimitivePatch class in 2.3. Because of this I had to do a near full recompile of the whole OF install. Is there a more intelligent way to do this? Create a new derived class perhaps?

Let me see where this is used... mmm, firstly used from triSurface... which derives from PrimitivePatch... give me a few more minutes, to figure this out.


edit: Done! See this commit: https://github.com/wyldckat/Immersed...ea8f3c083f09c6
It's on the branch "decoupledTriSurface" in my git repository!

Best regards,
Bruno

be_inspired April 10, 2014 10:20

Kyle, your port sounds quite interesting for me. Please, keep us informed.
Do you plan to port also simpleIBFoam?

Best Regards

afrotimy April 11, 2014 03:33

Hi Everyone, I have no idea on how to create my airfoil.ftr or immersedBoundary.ftr files. I already created my .stl files. Do anyone know how to create .ftr of the icoIbFoam?

be_inspired April 11, 2014 09:15

Quote:

Originally Posted by afrotimy (Post 485391)
Hi Everyone, I have no idea on how to create my airfoil.ftr or immersedBoundary.ftr files. I already created my .stl files. Do anyone know how to create .ftr of the icoIbFoam?

Hi,

surfaceConvert file.stl file.ftr
Ftr files can not be opened with Paraview. Only STL geometries can be seen.

Best Regards

afrotimy April 11, 2014 09:31

Thank you. Do you mean I need to use tbw command: surfaceConvert file.stl file.ftr. ?

kmooney April 12, 2014 13:44

Quote:

Originally Posted by be_inspired (Post 485246)
Kyle, your port sounds quite interesting for me. Please, keep us informed.
Do you plan to port also simpleIBFoam?

Best Regards

Yep, I plan on porting all of ZT's original solvers. If I have time over the weekend I'll fork off of wyldcat's git repo with the 2.3 port and his fix for the PrimitivePatch class.

I'll probably make a new thread once its up and running.

Cheers!
Kyle

afrotimy April 13, 2014 18:36

Quote:

Originally Posted by wyldckat (Post 484044)
Greetings to all!

I had this on my to-do list for some weeks now and I've finally come around to git'ifying this source code and creating a wiki page for it:
Anyone and everyone, please feel free to edit the wiki page and fork the repository! ;)


@Francis:

You'll find installation instructions on the wiki page mentioned above, namely: http://openfoamwiki.net/index.php/Ex...y#Installation
Essentially, the missing step is to first run the script Allwclean:
Code:

./Allwclean
./Allwmake

----------------

@Kyle:

Nice!


Let me see where this is used... mmm, firstly used from triSurface... which derives from PrimitivePatch... give me a few more minutes, to figure this out.


edit: Done! See this commit: https://github.com/wyldckat/Immersed...ea8f3c083f09c6
It's on the branch "decoupledTriSurface" in my git repository!

Best regards,
Bruno

wyldckat,

Job well done.

I found out today that you prepared the git clone link and can now be installed on a network. I have really been worried about this.

Meanwhile, I am currently trying to simulate an airfoil with the IB method on OF16ext already installed on my Ubuntu. My ibAirfoil.ftr and ImmersedBoundary.ftr seems not to be in order. During running, I get 0 number of IB cells, no values for ImmersedBoundaryForces and ..

Code:

Create time

Create mesh for time = 0

Reading transportProperties

Reading field p

Reading field U

Reading/calculating face flux field phi

Create immersed boundary cell mask
Create immersed boundary face mask
Found immersed boundary patch 0 named ibAirfoil
External flow
Number of IB cells: 0

Starting time loop

Time = 0.0016

Courant Number mean: 0.0156696 max: 0.393621 velocity magnitude: 6.28
--> FOAM Warning :
    From function max(const UList<Type>&)
    in file /home/afrotimy/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/FieldFunctions.C at line 322
    empty field, returning zero

Although, I used the NACA2STL.m script to generate my ibAirfoil.stl and ImmersedBoundary.stl files. I think something is wrong or it is not the right approach to creating them.

The keynote on how to compile a new solver is also a useful tool.

Please, can you further enlighten me on this.
Many thanks.

wyldckat April 20, 2014 14:12

Hi Francis,

Quote:

Originally Posted by afrotimy (Post 485487)
Thank you. Do you mean I need to use tbw command: surfaceConvert file.stl file.ftr. ?

In case you or anyone else is still wondering, the idea is to run:
Code:

surfaceConvert path/to/file.stl path/to/file.ftr
Where "path/to/file" is the path to the file in question. For example, if we would want to convert the ".ftr" file available in the tutorial "flowOverCylinder/ibCylinder" to STL:
Code:

surfaceConvert constant/triSurface/cylinderRefined.ftr constant/triSurface/cylinderRefined.stl
As for your other question:
Quote:

Originally Posted by afrotimy (Post 485892)
Although, I used the NACA2STL.m script to generate my ibAirfoil.stl and ImmersedBoundary.stl files. I think something is wrong or it is not the right approach to creating them.

Open the STL files you've got in ParaView, to visually inspect them. And use the surfaceCheck to check if they're OK or not, e.g.:
Code:

surfaceCheck ibAirfoil.stl
Best regards,
Bruno

tewyme May 27, 2014 17:37

Quote:

Originally Posted by afrotimy (Post 480255)
Hi Everyone,

Good to find out that Immersed Boundary Mesh have been implemented in OpenFoam recently. However, I am trying to run the tutorial on Cavity and Flow around a cylinder with Immersed Boundary Foam in OF2.3.0 but gives so many error messages wheun running it with icoIbFoam command.
Even when I installed d version 1.6-ext, can't still run it.

I have followed the Tutorial procedures and included the additional dictionaries, but can't run.

Tried to run the wmake for compilation, but complains of not seeing octree.H and some other files. Meanwhile, octree.H and .C and in my meshtool directory.

Can anyone who has successfully ran this share more hints with me? I am a up comer.

Many thanks.


Hi afrotimy,

Could you please tell me how did you solve this problem (more details will be appreciated)?. Thanks in advance.


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