Re: [Libmesh-users] question about example transient_ex2.C

2019-03-05 Thread Povolotskyi, Mykhailo
12:38 PM To: Povolotskyi, Mykhailo<mailto:mpovo...@purdue.edu> Cc: libmesh-users<mailto:libmesh-users@lists.sourceforge.net> Subject: Re: [Libmesh-users] question about example transient_ex2.C On Mon, Mar 4, 2019 at 11:34 AM Michael Povolotskyi mailto:mpovo...@purdue.edu>> wrot

Re: [Libmesh-users] question about example transient_ex2.C

2019-03-04 Thread John Peterson
On Mon, Mar 4, 2019 at 11:34 AM Michael Povolotskyi wrote: > Thank you. > > Couple of more questions: > > 1. You have p and u variables in your equation. Is this a misprint? > Yes, sorry there is only one variable, p. 2. It seems there is also a force term. In the example you integrate it > over

Re: [Libmesh-users] question about example transient_ex2.C

2019-03-04 Thread Michael Povolotskyi
Thank you. Couple of more questions: 1. You have p and u variables in your equation. Is this a misprint? 2. It seems there is also a force term. In the example you integrate it over a surface. Can I have a volume force, to solve something like this: (1/c^2) d^2 p / dt^2 - Laplacian(p) + F =

Re: [Libmesh-users] question about example transient_ex2.C

2019-03-04 Thread John Peterson
On Mon, Mar 4, 2019 at 10:24 AM Michael Povolotskyi wrote: > Dear Libmesh developers, > > could you, please, tell which equation is solved in the example > transient_ex2.C? > Looks like some kind of second-order wave equation to me, (1/c^2) d^2 p / dt^2 - Laplacian(u) = 0 but you should double