Hello to all I am a beginner in freefem . I am working in 3D. I would like to understand how to build and make a mesh of a cube or a right block. I have taken the code cube.idp but I did not understand much. especially the idea of each line. I would like to have your help. I would be happy if …

I would also like to know how to generate a file containing E(t) and t in order to plot E(t) with the new Freefem ++4.12

I currently use freefem++3.6 and with it I can generate a .txt file that I run with the gnuplot software. And there I see that the curve drawn decreases exponentially.

Yes, well, in my point of view. My theory said that Energy decreases exponentially.

Please How can i define the maximum absolute error (linifinality) for vector functions?

You really need to look through more examples probably. I’m just curious if my solving code was right. Most of the other stuff will make sense on a little reflection. Vectors can be tricky if the components have different weights or units. I guess just taking the max magnitude of the difference …

Good evening Professor. Good evening to all I did the same thing for this equation system. Here the solution is a vector function. Here is the .edp file I hope for your corrections and comments. Thanks in advance. \begin{equation} \left{ \begin{array}{lll} \frac{1}{\mu_1} ~rot~ rot ~\mathb…

I will try to look at this tomorrow but Iwas curious if this started out as soemthing like rot(rot(E)) - E*conj(E) j omega J ; with J being a sheet current on the bottom surface? Is there a factor of i floating around and is E divergence free? Not sure if there are any materials properties th…

it is an evolution of the magnetic field I took just the static case

As written it looks like zero is a good result which is what happens if you increase your grid density - I used nx=ny=nz=10. Were you trying to get some other answer? Is the surface value fixed or something?

mesh of a right paving stone and a cube

General Discussion

aweni (romziath) May 16, 2023, 2:03pm 58

Good evening professor
good evening to all
Please, I would like someone to send me a code example of a 3D elasticity evolution problem.

Thank you in advance.

3dexample.edp (6.45 KB)

Topic		Replies	Views
Transient problems in elasticity General Discussion	6	1022	July 8, 2021
3d elasticity problem General Discussion	1	216	June 12, 2024
Oldroyd-B model freefem++ code bugs and issues: Assertion fail General Discussion	7	171	February 28, 2025
Request help with a 3D model General Discussion	4	134	June 24, 2025
Implicit integration for elastodynamics using Newton's method General Discussion	2	581	August 27, 2023

mesh of a right paving stone and a cube

Related topics