[bryant_k]

Hi everyone
I am trying to run the case multiRegionHeater in OpenFOAM-1.6-ext.I run the case according the 'Allrun' file.But It seems that it's not easy as it write there.I meet many kind s of problems.For instance,when I run the commond:

changeDictionary -region heater

there come an error:

Replacing entries in dictionary K
Loading dictionary K


--> FOAM FATAL IO ERROR: 
cannot open file

file: /home/bryant/multiRegionHeater/0.001/heater/K at line 0.

    From function regIOobject::readStream()
    in file db/regIOobject/regIOobjectRead.C at line 62.

FOAM exiting

and then I change the file 'k' to 'K'.The error above has disappeared,but occurred other errors.

Can anybody tell me how to run it fluently?

Thank you very much!

bryant

[mturcios777]

Hi Bryant,

Just based on your "age" on this forum, you are still getting used to the OpenFOAM way of doing things. Here is a little guidance: IO errors are simply when the solver/utility can't find a file or entry that it needs to proceed. These are usually the easiest to fix (like you just did by providing the missing file), so try and get as many of these sorted as you can (have a look at the tutorial case and make sure you have all the files and entries). That way we get to the more serious runtime errors that occur whe, theren your simulation doesn't behave properly.

For changeDictionary in particular, have a look in system/changeDictionary and you will see what files it makes changes to (and hence requires).

Long story short: don't be too afraid of IO errors.

[Ahmed Khattab]

Originally Posted by bryant_k

Hi everyone
I am trying to run the case multiRegionHeater in OpenFOAM-1.6-ext.I run the case according the 'Allrun' file.But It seems that it's not easy as it write there.I meet many kind s of problems.For instance,when I run the commond:

changeDictionary -region heater

there come an error:

Replacing entries in dictionary K
Loading dictionary K


--> FOAM FATAL IO ERROR: 
cannot open file

file: /home/bryant/multiRegionHeater/0.001/heater/K at line 0.

    From function regIOobject::readStream()
    in file db/regIOobject/regIOobjectRead.C at line 62.

FOAM exiting

and then I change the file 'k' to 'K'.The error above has disappeared,but occurred other errors.

Can anybody tell me how to run it fluently?

Thank you very much!

bryant

Hi bryant,

first switch directory for case directory
cd . /home/bryant/tutorials/multiRegionHeater/

then write this command
./Allrun

you don't have to write every command yourself if i understood your attempts right.

please try this steps and feed back. if these steps are what you did, please post the second error appeared to you.

Good Luck and happy foaming

[bryant_k]

Thank you very much!
I have solve the problem。

regards！

bryant!

Originally Posted by rebel ahmed

Hi bryant,

first switch directory for case directory
cd . /home/bryant/tutorials/multiRegionHeater/

then write this command
./Allrun

you don't have to write every command yourself if i understood your attempts right.

please try this steps and feed back. if these steps are what you did, please post the second error appeared to you.

Good Luck and happy foaming

[Ahmed Khattab]

you are welcome.