I am getting the following err
I am getting the following error.
 > FOAM FATAL ERROR : incompatible dimensions for operation [U[0 1 1 0 0 0 0] ]  [U[0 1 0 0 0 0 0] ] From function checkMethod(const fvMatrix<type>&, const fvMatrix<type>&) in file /home/faroque/OpenFOAM/OpenFOAM1.3/src/finiteVolume/lnInclude/fvMatrix.C at line 1024. FOAM aborting Foam::error::printStack(Foam:http://www.cfdonline.com/OpenFOAM_D...part/proud.gifstream&) Foam::error::abort() ./newApp [0x80525e5] ./newApp [0x8061e31] ./newApp [0x804f354] __libc_start_main __gxx_personality_v0 0Aborted  It seem to me problem in the dimension defition for my volScalarField variable. I defined variable dimension like follwoing: dimension [0 0 0 1 0 0 0] Could someone help me? 
Your error says the simulation
Your error says the simulation has failed in the momentum equation  one of the terms you've added has got wrong dimensions.
Hrv 
Thanks for the reply.
I have
Thanks for the reply.
I have set the equation in following way..  solve ( fvm::ddt(T) == fvm::laplacian(T) );  where T is a volScalarField. Did I make any mistake here?  Faroque 
Hi,
there should be a trans
Hi,
there should be a transportcoefficient for temperatur in this kind of equation?! sth like: a*ddt(T)=laplaceian(T),where a is sth like rho*c/lambda. otherwise your dimensions are K/s on the left side and K/m^2 on the right side. for the value of the transport coefficient you should look i a textbook to find something for your material... stephan 
hi,
if u want to use the e
hi,
if u want to use the equation like that the code should looke like: solve ( fvm::ddt(T)  fvm::laplacian( dimensionedScalar ( "scal", dimensionSet(0, 2, 1, 0, 0), 1), T) ); } Actually u just multiply with a scalar with unit value 1[m2/s] Adrian 
Isn't there a way to tell the
Isn't there a way to tell the solver that space and time variables used for the derivation are dimensionless ?

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