清空筛选条件
清空筛选条件

Discontinuous Galerkin Method 2D

10 次查看（过去 30 天）
Bilal ALAUDDIN
Bilal ALAUDDIN 2017-12-1
回答： Mukul Rao 2017-12-5
Hello everyone,
I try to find a discontinuous galerkin method solver of the simple equation :
- div(p(nabla(u))= f on omega u=g on the boundary
Where omega is a square [-1 1]*[-1 1] here with triangular meshes!
Thank you for your help! :)
  2 个评论
Mukul Rao
Mukul Rao 2017-12-4
Hello, can you share why you need the discontinuous Galerkin method for this problem? What kind of discontinuity are you planning to model?
Bilal ALAUDDIN
Bilal ALAUDDIN 2017-12-5
编辑：Bilal ALAUDDIN 2017-12-5
Hello, thank you for your answer,
I forgot to give some extra indications : p=1 if y>=0 ans p=100 if y<0. Also, f= exp(x)-5*exp(x+2y)
I'm planning to model the IP model
Thank you for your help! :)

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Mukul Rao
Mukul Rao 2017-12-5
Hi Bilal, you could model your domain as two rectangles sharing a common face at y = 0. You can then use the specifyCoefficients function to set different values of parameter "c" ( which corresponds to "p" in your equation), by face value.
See the specify coefficients by sub-domain documentation page for examples.

类别

在 Help Center 和 File Exchange 中查找有关 Ordinary Differential Equations 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by