Hello,
the velocity gradient tensor for a 2D-axisymmetric problem presents, for the phiphi component, the following expression
chns.graduDGphiphi = if(abs(r)<0.0010*h,d(u,r),u/r)
does anyone know the meaning? I can guess that is introduced to avoid spurious effects at the axisymmetric boundary but still it is not totally clear to me.
Best,
J
the velocity gradient tensor for a 2D-axisymmetric problem presents, for the phiphi component, the following expression
chns.graduDGphiphi = if(abs(r)<0.0010*h,d(u,r),u/r)
does anyone know the meaning? I can guess that is introduced to avoid spurious effects at the axisymmetric boundary but still it is not totally clear to me.
Best,
J