[hfs]

Hi,

I am trying to use timeVaryingMappedFixedValue with OpenFOAM 2.2

I copied a case that works fine with OpenFOAM 2.1 and tried to run it with OpenFOAM 2.2.
I got the following error:

Create mesh for time = 0

Reading field p

Reading field U



--> FOAM FATAL IO ERROR: 
keyword offset is undefined in dictionary "/home/hosam/simple_case/0/U.boundaryField.inlet"

file: /home/hosam/simple_case/0/U.boundaryField.inlet from line 26 to line 27.

    From function dictionary::lookupEntry(const word&, bool, bool) const
    in file db/dictionary/dictionary.C at line 402.

FOAM exiting

line 26 to line 27 in 0/U:

    inlet
    {
      type            timeVaryingMappedFixedValue;
      setAverage      0;
    }

Any idea what went wrong?

Thanks!

[hfs]

Is there anyone using timeVaryingMappedFixedValue boundary without problems?

[Z.Q. Niu]

Dear hfs,
should the setAveragebe set off instead of 0?

[hfs]

Does setAverage thing have an influence?

[hfs]

The solution to my problem was only specifying the offset:

inlet {
type timeVaryingMappedFixedValue;
setAverage 0;
offset (0 0 0);
}

as explained by Vesselin Krastev:
http://www.cfd-online.com/Forums/ope...oundaries.html

[Z.Q. Niu]

what means of offser (0 0 0)?

[hfs]

I think it means that your inlet velocities will be mapped to your inlet patch not on the coordinates listed in "points" file, rather on those coordinate + an offset.

I am not sure .. this is only my guess!

note: this offset is not required on OpenFOAM 2.1 and earlier versions..