|November 8, 2013, 06:27||
mass transport having different diffusity in each direction
Join Date: Jan 2013
Posts: 24Rep Power: 5
I am making my own solver related to mass transport in turbulent flow.
first, i made the solver of mass transport having same diffusity of concentration in each direction like:
+ fvm::div(phi, C)
- fvm::laplacian(turbulence->nut() / 0.5, C)
the code above is added pimple solver to calculate concentration C.
this solver is for river flow and turbulent diffusity of mass is
nut() / 0.5
it is eddy-viscosity over Prandtl number(in this case, Prandtl number is 0.5)
that is, mass spread out having same diffusion coefficient in x,y,z
but now, i want to consider different coefficient in each direction like attached equation.
different coefficient is definded D1, D2, D3 as scalar.
D1, D2, D3 is calculated by some equations.
if scalar value D1, D2, D3 can be located in vector matrix after D1,D2,D3 is calculated, i think it is easy to programming as i want.
Dt=(D1, D2, D3)
+ fvm::div(phi, C)
- Dt&fvm::laplacian( C)
actually i dont know openfoam programming exactly.
I am just beginer for programming.
so i'm not sure whether - Dt&fvm::laplacian(C) is right expression in openfoam language or not
plz help me.
the point is make vector using scalar which is calculated
|February 10, 2014, 10:01||
Join Date: Sep 2010
Posts: 354Rep Power: 10
If you haven't solved your problem meanwhile: Here is the documentation of the OpenFOAM operators:
|February 21, 2014, 16:45||
Join Date: Mar 2011
Posts: 1Rep Power: 0
Did you ever figure this out? What is the syntax to access the components of the vector Dt in fvScalarMatrix?
Last edited by jdmac6; February 25, 2014 at 11:59.
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