incompatible dimensions for operation
 

Dear foamers

I have wrote solver for a coupled system which is working fine for the cavity case but when I run this solver for a different 3D domain then i get this error which is quite strange for me.
Can somebody help?

--> FOAM FATAL ERROR:
incompatible dimensions for operation
[Un[0 1 -2 0 0 0 0] ] + [Un[0 2 -3 0 0 0 0] ]

From function checkMethod(const fvMatrix<Type>&, const fvMatrix<Type>&)
in file /home/nshakir/OpenFOAM/OpenFOAM-2.2.2/src/finiteVolume/lnInclude/fvMatrix.C at line 1314.

For some reason you try to add two values with different units and openFoam complains about that. Units are shown in the way [kg m s K kgmol A d], so you try to add "m/s^2" and "m^2/s^3".

Edit: You say your code worked in a different case. Then, it is most likely that one of your input / boundary condition files (k, nu, ...) has the wrong dimension at the top of the file!

Dear Philipp

The solver is running for cavity case and taking the same case but with different 3D domain and only one different condition that is on boundary (rotatingWallVelocity) I get this error. So the only reason for this error can be this condition but I don't know how to sort it out.

Regards
Noman

Dear Philipp

Sorry, it was my bad, I found the error in transportProperties, dimensions of a parameter were wrong. Problem solved now.
Thanks for pointing.

Regards
Noman