How do I re-write the Nernst-Planck equation in PDE Toolbox form?

12 次查看（过去 30 天）
Ollie Bardsley
Ollie Bardsley 2021-7-20
评论： Peifeng Su 2023-5-10
Hiya, really struggling with re-arranging the Nernst-Planck equation to specify coefficients:
In the form that PDE Toolbox requires:
I understand that:
m = 0
d = 1
f = 0
But besides that I have no idea how to specify co-efficients 'a' and 'c' to form this equation, due to the addition of the electric field component.
Any wisdom much appreciated!!

请先登录，再回答此问题。

回答（1 个）

Tanmay Das
Tanmay Das 2021-9-15
Hi,
You can use the following rule to solve the Nerst-Plank equation and reduce it to a form required by PDE toolbox.
Divergence rule
  1 个评论
Peifeng Su
Peifeng Su 2023-5-10
Hi, I also have the same question. Except in my ase, the electrical feild can be regarded as constant
Similarly, i don't understand how to consider the second term in the right side in that form. Can you please explain more about the product rule? Are there part of pdepd function?

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Electromagnetics 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by