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-   -   How can I get a cell's height? (https://www.cfd-online.com/Forums/openfoam-programming-development/126873-how-can-i-get-cells-height.html)

sharonyue November 27, 2013 20:09
How can I get a cell's height?
 
Hi guys,

mesh.C() returns a vector. But I want this vector's height, for example, mesh.C().z()???

Thanks very much.

lixx November 28, 2013 00:08
mesh.C() returns a vectorField. If you want to get a specific cell's z-component, you still have to get the index of that cell.

sharonyue November 28, 2013 01:44
Quote:
Originally Posted by lixx (Post 463835)
mesh.C() returns a vectorField. If you want to get a specific cell's z-component, you still have to get the index of that cell.
Hi,

But I get a volScalarFields by mech.C().component(2)? It compiles well...:confused:

Code:
volScalarField Gk
    (
        IOobject
        (
            "Gk",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::AUTO_WRITE
        ),
        GkReference + slot*mesh.C().component(2)//GkReference is volScalarField. slot is  dimensionedScalar
    );

akidess November 28, 2013 04:06
Quote:
Originally Posted by sharonyue (Post 463843)
But I get a volScalarFields by mech.C().component(2)?
What did you expect?

sharonyue November 30, 2013 20:28
Quote:
Originally Posted by akidess (Post 463865)
What did you expect?
Some others say I should use forAll:)

wyldckat November 30, 2013 21:25
Greetings to all!

This is what I usually do when I need to find a piece of code in OpenFOAM, more specifically for this kind:
Code:
cd $FOAM_UTILITIES
find . -name "*.[HC]" | xargs grep -sl "mesh.C()"
And the very first hit is shown here: https://github.com/OpenFOAM/OpenFOAM...ineSwirl.C#L56

Best regards,
Bruno


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