On Fri, 27 Jun 2008, Lorenzo Botti wrote: > I have a problem comparing pressure however, I get high errors (e+09) even if > the solutions are not so different. > I have an equation system with three systems, advection-diffusion, pressure > projection, pressure correction, a second order approximation for velocity > while a first for pressure. > Any idea?
The only idea off the top of my head: if you've got a pressure solution that's converging in L2 but discontinuous, trying to take an H1 norm of the differences between two solutions might give some huge numbers. But it might be a bug, too. Can you reduce the problem to something small enough (a few elements) to double-check manually? --- Roy ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
