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Forum: OpenFOAM Programming & Development

March 3, 2011, 07:47

Replies: 6

how to extract vector from tensor ?

Views: 2,718

Posted By Cyp

Thank you for your answer.. in fact, it not...

Thank you for your answer..

in fact, it not really worked since when you write :

D1= tensor(1,0,0,0,0,0,0,0,0)*U1x.component(vector::X);
D1= tensor(0,0,0,1,0,0,0,0,0)*U1x.component(vector::Y);...

Forum: OpenFOAM Programming & Development

March 3, 2011, 05:25

Replies: 6

how to extract vector from tensor ?

Views: 2,718

Posted By Cyp

Hi Steven! Actually, this the piece of code ...

Hi Steven!

Actually, this the piece of code

fvVectorMatrix U1xEqn
(
fvm::ddt(U1x)
- fvm::laplacian(nu, U1x)
+ unitE*alpha*vector(1,0,0)

Forum: OpenFOAM Programming & Development

March 2, 2011, 17:03

Replies: 6

how to extract vector from tensor ?

Views: 2,718

Posted By Cyp

Hi Steve! Thank you for your answer. I had a...

Hi Steve!

Thank you for your answer. I had a look at your code.

I tried this snippet :

D1.component(tensor::XX) = U1x.component(vector::X);
D1.component(tensor::YX) =...

Forum: OpenFOAM Programming & Development

March 2, 2011, 13:01

Replies: 6

how to extract vector from tensor ?

Views: 2,718

Posted By Cyp

how to extract vector from tensor ?

Hi!

I would like to extract a vector from a tensor. I know one can recover a scalar from a tensor using T.xx() ; T.xy() ...

Do you know what can I do to recover the first column of my tensor ?...

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