Problems with dimension
Hello,
hopefully I´ve got an easy question for you I just want to calculate a absolut value of a gradient of a volScalarField (for example epsilon of the kepsilonturbulence model) Could somebody help me with the name of the function? Thanks a lot 
Code:
mag(fvc::grad(epsilon)) 
Thanks :)
but now I get an error because of the dimensions. (> FOAM FATAL ERROR: LHS and RHS of  have different dimensions dimensions : [0 1 0 0 0 0 0]  [0 0 0 0 0 0 0] ) I want to calculate ( mag(fvc::grad(alpha1_))  1 ) / ( mag(fvc::grad(alpha1_))  1.1 ) alpha1_ is the phase volume fraction of the VOFmodel Has somebody an idea how I can do it? I thought that this term has no dimension: (metre  1) / (metre 1 ) = 1 thanks again 
its some how obvious :P, grad means in simple word d/dx , when you gradient a dimless value! it gets a dimension 1 for meter ;) so you can not add it with a constant number :) unless you use its value with value() function or give you constant a dimension ;)

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