Re: [deal.II] Solving nonlinear heat equation with radiation

Sylvain, I have not tried to follow your equations in detail, but let me point out how this is generally done. The "right" approach is to start with the PDE, then to use a time discretization *of the PDE* that leads to a linear occurrence of T^{n+1} on the left hand side (possibly multiplied

Re: [deal.II] Structure damage analysis due to shock wave

On 6/28/21 6:41 AM, Hyung Seok Kang wrote: I am now investigating that deallii can simulate a solid structure damage when a pressure wave, owing to a hydrogen explosion, collides with the structure. I would like to analyze a FSI analysis using OpenFOAM, preCICE, and dealii. Colud you please

Re: [deal.II] Re: std::set> : missing operator(s)

On 6/27/21 8:43 AM, Simon Wiesheier wrote: Just for a better understanding, the following approach from your linked website did not work: std::set< Point, decltype(_points) > vertices(_points); If `comp_points` is a template, then you need to say _points Best W. --

[deal.II] step-17: MPI parallelisation doesn't run (macOS Catalina)

Hi Jean-Paul, I didn't mean to send you a private message, thanks for posting me message back here ! Your explanation makes perfectly sense to me. Thanks again for the support, Bob Il giorno lunedì 28 giugno 2021 alle 21:52:26 UTC+2 Jean-Paul Pelteret ha scritto: > Hi Bob, > > I’ve copied

Re: [deal.II] Make test fail after installation

Wow that was a quick response. Thanks for your help Matthias. Well as I mentioned I am new to deal.ii and am at the discovering stage. But I risk to get back to you in the future for this error message. Thanks again On Monday, June 28, 2021 at 10:21:17 PM UTC+2 Matthias Maier wrote: > Hi, > >

Re: [deal.II] Make test fail after installation

Hi, It looks like your deal.II installation picked up a gmsh binary and configured deal.II with support for gmsh. This is done by calling the binary and if it is not compiled/installed with the correct set of features the test might fail. If you don't plan to use the gmsh interface in deal.II

[deal.II] Make test fail after installation

Hello there, I am new to deal.ii and I am currently at installation stage. To install the code I followed mostly the tutorial given here and I also had a look at this page . There are slight

Re: Messaggio privato su: [deal.II] step-17: MPI parallelisation doesn't run (macOS Catalina)

Hi Bob, I’ve copied your message to me back onto the mailing list. Yes, as you observed you need to use the terminal that opens when you run the deal.II application. I’m glad that you figured this out. When you run the app, it sets up the local environment (for that specific terminal instance)

[deal.II] On the discretization of the time harmonic Maxwell equation

This is not a dealii question per se but again, if it's someone who can answer this question it's going to be someone from here. The literature mostly refers to two approaches todiscretizing the time harmonic Maxwell equation. The first one is through the use of edge curl conforming Nedelec

[deal.II] Re: Solving nonlinear heat equation with radiation

It seems my image of the 2D version did not get through. It was something like (matrix * vector = vector): | T_{n}_10 | |T_{n+1}_1| = |T_{n}_1 * T_{n+1}_1| | 0 T_{n}_2 | |T_{n+1}_2||T_{n}_2 * T_{n+1}_2 | I hope it goes through nicely... -- The

[deal.II] Solving nonlinear heat equation with radiation

Dear all, *Some background :* I have been working for some time now on a project which is to solve the *radiative transfer equation* using the discrete ordinate method coupled with the *nonlinear heat equation* which include radiative terms. I am following this approach here

[deal.II] Structure damage analysis due to shock wave

Dear All, I am Hyung Seok Kang of Korea Atomic Energy Research Institute in South Korea. I am now investigating that deallii can simulate a solid structure damage when a pressure wave, owing to a hydrogen explosion, collides with the structure. I would like to analyze a FSI analysis using

Re: [deal.II] Re: Subdivided cylinder and boundary ids

Hi Bruno, Sure, I can try making a PR this week. Best, Alex On Sunday, June 27, 2021 at 9:36:50 p.m. UTC+2 blais...@gmail.com wrote: > I most likely copied this mistake from the regular Cylinder and did not > think of it when I coded the subdivided cylinder. > Alex, if you feel comfortable,

Re: [deal.II] Questions on Step-18

My view here is that the problem is quasi-static and hence time serves to order events. Hence a displacement increment can be viewed as equivalent to the velocity. For example, let’s fix the number of time-steps to 10. If the total time is 1s or 10s we should get the same results (assuming