On Mon, Jan 30, 2012 at 10:59 AM, Bao Kai <[email protected]> wrote: > Hi, John, > > Thank you for your helpful response. > > Since the lid driven cavity problem is actually a steady problem, it > seems that always the steady result will be obtained after the > non-linear iteration, which also means we get the final result in the > first time step. Is it right?
Not in general, no. The lid driven cavity has a steady state solution (for some Re) but we solve it in ex13 using a transient algorithm and time derivative terms are present in the PDE. The parameters (delta_t and Re) used in ex13 cause it to converge to steady state quite quickly, but certainly not in 1 timestep. -- John ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
