[sega]

Hallo World.

I'm trying to place a spherical bubble into my mesh.
I thought about doing this with setting the parameter gamma with setFields.

But I just know the command boxToCell and a bubble isn't really like a box ..

Any ideas?

[gschaider]

Beware: Advertising of own stuff

Look on the message-board or the Wiki for a thing called funkySetFields. I think there is even an example how to set a sphere with it somewhere

Bernhard

[mkraposhin]

Hi, Sebastian,

you can do that with such steps:

1) Create spherical surface (for example, with Netgen)
2) Export this surface to stl-formal
3) use option surface surfaceToCell (like in cellSetDict)
4) run foamToVTK . . -cellSet <your_cell_set_name>
5) preview <your_cell_set_name> in paraview
6) Enjoy!

[xoitx]

Originally Posted by mkraposhin

Hi, Sebastian,

you can do that with such steps:

1) Create spherical surface (for example, with Netgen)
2) Export this surface to stl-formal
3) use option surface surfaceToCell (like in cellSetDict)
4) run foamToVTK . . -cellSet <your_cell_set_name>
5) preview <your_cell_set_name> in paraview
6) Enjoy!

Any tutorial on this?
This is too crude .. just started openFoam 3 days ago
what to after a cad model shape and how does it get its reference point...
Thanks

[sega]

Which one may be the easier way?

[jaswi]

Hi Sebastian

As far as I understand you are using interFoam and you want to initialize the gamma field with a spherical bubble.

If that is the case then funkySetFields is the best choice as it allows you to do that in a very simple way.

Let me know if you still trying to do that as I can send you the code (courtesy Bernhard) which compiles with the 1.4.1 version.



With Regards
Jaswinder

[shchao]

Originally Posted by jaswi

Hi Sebastian

As far as I understand you are using interFoam and you want to initialize the gamma field with a spherical bubble.

If that is the case then funkySetFields is the best choice as it allows you to do that in a very simple way.

Let me know if you still trying to do that as I can send you the code (courtesy Bernhard) which compiles with the 1.4.1 version.



With Regards
Jaswinder

Can you send me the input files and the grid files shown in that picture? My email address:shenchao.sx@gmail.com
Thank you!

[liguifan]

Originally Posted by shchao

Can you send me the input files and the grid files shown in that picture? My email address:shenchao.sx@gmail.com
Thank you!

Dear shchao,

How is going with your bubble rising from the water. I am currently working on the same thing, however, I am not able to figure out how to design a 3D bubble from the above picture given. Just wondering does someone has sent you the code for that? I have figured out the 2D model but not the 3D one.

If you have the code, do you think you can send me a copy for that? my email address is liguifan@gmail.com
Appreciated!

[sega]

Sending me the code would be great.
Send it to NOSPAM.sebastian.gatzka@stud.tu-darmstadt.de

(without the NOSPAM.) :-)

Thanks a lot ...

What is your setup in the picture used for?
I would like to simulate a rising bubble to investigate it's terminal velocity.

[ht2017]

could you send me the code to create a sphere by funkysetfiled?

my email: hoaithanhbk281113@gmail.com

Thank you so much!

[jaswi]

Hi Sebastian

This is just a trial setup to see how one can initialize the bubble and use interFoam to simulate bubble rising. it lacks the proper physics setup

It would be nice if you could share your experience one you have simulated the rising bubble up to its terminal velocity.

I send you the code right now.

Let me know if it won't compile or some other help required to initialize the bubble.

With Regards
Jaswi

[gschaider]

Hi!

The most recent version of funkySetFields can be downloaded via the subversion command in the Downloads section of
http://openfoamwiki.net/index.php/Co...funkySetFields

Bernhard

[agr]

Originally Posted by gschaider

Hi!

The most recent version of funkySetFields can be downloaded via the subversion command in the Downloads section of
http://openfoamwiki.net/index.php/Co...funkySetFields

Bernhard

Thanks, Bernard, for the nice and promising utility.

Dear Bernard and All,

I downloaded the swak4Foam package, tried to follow your instructions - additionally installed flex. Seems it was built without errors.

But I still cannot get - should one use funkySetFields instead of setFields or after?

I just placed your demo funkySetFields Dictionary in my case/system directory and run the funkySetFields utility. It returned me the error:

FOAM FATAL ERROR:
funkySetFields: time/latestTime option is required

What does that mean?

Thanks in advance for your advice,
Regards,
Gallyam

[gwierink]

Hi Gallyam,

I just placed your demo funkySetFields Dictionary in my case/system directory and run the funkySetFields utility. It returned me the error:

FOAM FATAL ERROR:
funkySetFields: time/latestTime option is required

What does that mean?

This means that funkySetFields wants to know where to write the new fields, i.e. in which time directory. If you just want to plug it into your 0 directory, use

funkySetFields -time 0

But I still cannot get - should one use funkySetFields instead of setFields or after?

Depends on what you want to do. If you just need funkySetFields to set a field according to an algorithm, e.g. as fuction of some coordinate, then funkySetFields is enough.

[agr]

Hello, Gijsbert!

Thanks a lot for your reply!

Now it works.

Regards,
Gallyam

[sega]

I have seen the file, but what is subversion?
I'm not yet familiar with the Linux environment..

[sega]

Ok, after installing subversion and flex (not knowing what these are exactly doing) I get this strange listing, wenn running wmake funkySetFields:

Making dependency list for source file ValueExpressionParser.yy
could not open file ValueExpressionParser.tab.hh for source file ValueExpressionParser.yy
Segmentation fault (core dumped)
Making dependency list for source file ValueExpressionLexer.ll
could not open file ValueExpressionParser.tab.hh for source file ValueExpressionLexer.ll
Segmentation fault (core dumped)
Making dependency list for source file ValueExpressionDriver.C
could not open file ValueExpressionParser.tab.hh for source file ValueExpressionDriver.C
Segmentation fault (core dumped)
Making dependency list for source file funkySetFields.C
could not open file ValueExpressionParser.tab.hh for source file funkySetFields.C
Segmentation fault (core dumped)
SOURCE=ValueExpressionParser.yy ; rm -f Make/linuxGccDPOpt/ValueExpressionParser.C Make/linuxGccDPOpt/ValueExpressionParser.tab.hh; bison -ra -v -d $SOURCE ; mv *.tab.cc Make/linuxGccDPOpt/ValueExpressionParser.C ; mv *.tab.hh Make/linuxGccDPOpt/ValueExpressionParser.tab.hh ; mv *.hh Make/linuxGccDPOpt ; g++ -m32 -Dlinux -DDP -Wall -Wno-strict-aliasing -Wextra -Wno-unused-parameter -Wold-style-cast -O3 -DNoRepository -ftemplate-depth-40 -IMake/linuxGccDPOpt -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/finiteVolume/lnInclude -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/meshTools/lnInclude -IlnInclude -I. -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude -fPIC -pthread -c Make/linuxGccDPOpt/ValueExpressionParser.C -o Make/linuxGccDPOpt/ValueExpressionParser.o
ValueExpressionParser.tab.cc: In member function 'unsigned char ve::ValueExpressionParser::yytranslate_(int)':
ValueExpressionParser.tab.cc:1865: warning: use of old-style cast
SOURCE=ValueExpressionLexer.ll ; rm Make/linuxGccDPOpt/ValueExpressionLexer.C ; flex -f $SOURCE ; mv *.c Make/linuxGccDPOpt/ValueExpressionLexer.C ; g++ -m32 -Dlinux -DDP -Wall -Wno-strict-aliasing -Wextra -Wno-unused-parameter -Wold-style-cast -O3 -DNoRepository -ftemplate-depth-40 -IMake/linuxGccDPOpt -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/finiteVolume/lnInclude -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/meshTools/lnInclude -IlnInclude -I. -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude -fPIC -pthread -c Make/linuxGccDPOpt/ValueExpressionLexer.C -o Make/linuxGccDPOpt/ValueExpressionLexer.o
rm: Entfernen von &bdquo;Make/linuxGccDPOpt/ValueExpressionLexer.C" nicht möglich: No such file or directory
lex.ve.c:340: warning: use of old-style cast
lex.ve.c:410: warning: use of old-style cast
lex.ve.c:410: warning: use of old-style cast
lex.ve.c: In function 'int velex(ve::ValueExpressionParser::semantic_type*, ve::location*, ValueExpressionDriver&)':
lex.ve.c:6854: warning: use of old-style cast
lex.ve.c:6854: warning: use of old-style cast
lex.ve.c:6871: warning: use of old-style cast
lex.ve.c:6884: warning: use of old-style cast
lex.ve.c:7224: warning: use of old-style cast
lex.ve.c: In function 'int yy_get_next_buffer()':
lex.ve.c:7403: warning: use of old-style cast
lex.ve.c:7426: warning: use of old-style cast
lex.ve.c:7439: warning: use of old-style cast
lex.ve.c:7439: warning: use of old-style cast
lex.ve.c:7460: warning: use of old-style cast
lex.ve.c:7460: warning: use of old-style cast
lex.ve.c: In function 'yy_state_type yy_get_previous_state()':
lex.ve.c:7515: warning: use of old-style cast
lex.ve.c:7515: warning: use of old-style cast
lex.ve.c: In function 'int yyinput()':
lex.ve.c:7633: warning: use of old-style cast
lex.ve.c: In function 'yy_buffer_state* ve_create_buffer(FILE*, int)':
lex.ve.c:7732: warning: use of old-style cast
lex.ve.c:7741: warning: use of old-style cast
lex.ve.c: In function 'void ve_delete_buffer(yy_buffer_state*)':
lex.ve.c:7767: warning: use of old-style cast
lex.ve.c:7770: warning: use of old-style cast
lex.ve.c:7772: warning: use of old-style cast
lex.ve.c: In function 'void veensure_buffer_stack()':
lex.ve.c:7939: warning: use of old-style cast
lex.ve.c:7957: warning: use of old-style cast
lex.ve.c: In function 'yy_buffer_state* ve_scan_buffer(char*, yy_size_t)':
lex.ve.c:7983: warning: use of old-style cast
lex.ve.c: In function 'yy_buffer_state* ve_scan_bytes(const char*, int)':
lex.ve.c:8036: warning: use of old-style cast
lex.ve.c: In function 'void yy_push_state(int)':
lex.ve.c:8072: warning: use of old-style cast
lex.ve.c:8075: warning: use of old-style cast
lex.ve.c:8075: warning: use of old-style cast
lex.ve.c: In function 'int yy_init_globals()':
lex.ve.c:8243: warning: use of old-style cast
lex.ve.c:8256: warning: use of old-style cast
lex.ve.c:8257: warning: use of old-style cast
lex.ve.c: In function 'void* vealloc(yy_size_t)':
lex.ve.c:8333: warning: use of old-style cast
lex.ve.c: In function 'void* verealloc(void*, yy_size_t)':
lex.ve.c:8345: warning: use of old-style cast
lex.ve.c:8345: warning: use of old-style cast
lex.ve.c: In function 'void vefree(void*)':
lex.ve.c:8350: warning: use of old-style cast
lex.ve.c: At global scope:
lex.ve.c:8059: warning: 'void yy_push_state(int)' defined but not used
lex.ve.c:8088: warning: 'void yy_pop_state()' defined but not used
lex.ve.c:8100: warning: 'int yy_top_state()' defined but not used
SOURCE=ValueExpressionDriver.C ; g++ -m32 -Dlinux -DDP -Wall -Wno-strict-aliasing -Wextra -Wno-unused-parameter -Wold-style-cast -O3 -DNoRepository -ftemplate-depth-40 -IMake/linuxGccDPOpt -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/finiteVolume/lnInclude -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/meshTools/lnInclude -IlnInclude -I. -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude -fPIC -pthread -c $SOURCE -o Make/linuxGccDPOpt/ValueExpressionDriver.o
SOURCE=funkySetFields.C ; g++ -m32 -Dlinux -DDP -Wall -Wno-strict-aliasing -Wextra -Wno-unused-parameter -Wold-style-cast -O3 -DNoRepository -ftemplate-depth-40 -IMake/linuxGccDPOpt -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/finiteVolume/lnInclude -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/meshTools/lnInclude -IlnInclude -I. -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude -fPIC -pthread -c $SOURCE -o Make/linuxGccDPOpt/funkySetFields.o
g++ -m32 -Dlinux -DDP -Wall -Wno-strict-aliasing -Wextra -Wno-unused-parameter -Wold-style-cast -O3 -DNoRepository -ftemplate-depth-40 -IMake/linuxGccDPOpt -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/finiteVolume/lnInclude -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/meshTools/lnInclude -IlnInclude -I. -I/home/sega/OpenFOAM/OpenFOAM-1.4.1/src/OpenFOAM/lnInclude -fPIC -pthread Make/linuxGccDPOpt/ValueExpressionParser.o Make/linuxGccDPOpt/ValueExpressionLexer.o Make/linuxGccDPOpt/ValueExpressionDriver.o Make/linuxGccDPOpt/funkySetFields.o -L/home/sega/OpenFOAM/OpenFOAM-1.4.1/lib/linuxGccDPOpt \
-lfiniteVolume -lmeshTools -lOpenFOAM -ldl -lm -o /home/sega/OpenFOAM/sega-1.4.1/applications/bin/linuxGccDPOpt/funkySetFields


Whats wrong with that?

[msrinath80]

Nothing is wrong. It compiled fine. Those are just warnings NOT errors.

[msrinath80]

oops, what are those segfault messages doing up there? Did you follow the instructions correctly?

[msrinath80]

Try this:

Go into the folder that contains the file insertGenerated.sh. Then type:

./insertGenerated.sh

Then type:

cd ..

Followed by:

./Allwmake

That worked for me even though I am using Bison v 2.3.