Flux in Axisymmetric

[ark]

Hi,

Trying to learn axisymmetric case. The problem is steady state heat flux in 1 m * 0.036 m (x-dimension * y-dimension) plate . Heat flow is perpendicular to x axe. The mesh coordinates starts from 0,0 to the given dimensions. In the Cartesian coordinates the flux should be 16.69 W (from analitic calculations) and I have got it by boundary sum option of Elmer. Then, I have just changed Coordinate system from Cartesian to Axi Symmetric. I have got 8.34 W, but the area is 3.14 m2, so shouldn't the result be 3.14 * 16.69 ?

Regards, ark.

[raback]

Yes, multiply by 2PI. The weak form of the PDE does not include the factor. -Peter