problems with dimensionedScalar

DLC · December 4, 2009, 14:00

Hi Foamers....

I'm quite new to openFoam, and I'm having few basic problems while programming..
I'm working on interDyMFoam, OF1.5-dev and i'm doing a few changes in the mesh motion.

now I am trying to integrate the equations of motion of a floating body. Therfore need to multiply she body velocity by the deltaT (mesh_.time().deltaT, i suppose) of the PISO loop...

The problem is that mesh_.time().deltaT is a dimensionedScalar, body velocity is a scalar (double I think) and I must assign this product to a scalar (double). Obviously it's giving me ERROR.

How can I do it?

I really need some help....

thanks a lot!

Davide

l_r_mcglashan · December 5, 2009, 04:58

mesh_.time().deltaT().value() will give you the scalar value of time without the dimensions.

DLC · December 6, 2009, 12:14

Thanks a lot!...
seems to work now!
thanks again!

Davide

December 4, 2009, 14:00	problems with dimensionedScalar	#1
DLC Member Davide Lupo Conti Join Date: Nov 2009 Posts: 34 Rep Power: 17	Hi Foamers.... I'm quite new to openFoam, and I'm having few basic problems while programming.. I'm working on interDyMFoam, OF1.5-dev and i'm doing a few changes in the mesh motion. now I am trying to integrate the equations of motion of a floating body. Therfore need to multiply she body velocity by the deltaT (mesh_.time().deltaT, i suppose) of the PISO loop... The problem is that mesh_.time().deltaT is a dimensionedScalar, body velocity is a scalar (double I think) and I must assign this product to a scalar (double). Obviously it's giving me ERROR. How can I do it? I really need some help.... thanks a lot! Davide

December 5, 2009, 04:58		#2
l_r_mcglashan Senior Member Laurence R. McGlashan Join Date: Mar 2009 Posts: 370 Rep Power: 23	mesh_.time().deltaT().value() will give you the scalar value of time without the dimensions. __________________ Laurence R. McGlashan :: Website

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December 6, 2009, 12:14		#3
DLC Member Davide Lupo Conti Join Date: Nov 2009 Posts: 34 Rep Power: 17	Thanks a lot!... seems to work now! thanks again! Davide