Can any one help me how to write differential equation in comsol?

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Johannnes S Roth

Is this what you're after?

http://www.comsol.com/blogs/equation-based-modeling-in-comsol-4/

Oualid Imene

Hello Mr Banik,

If this tutorial could help you,

You can implement any kind of differential equation and set up the boundaries of your model by using PDE's interface,

You could read either this post

https://www.comsol.com/blogs/3-examples-of-equation-based-modeling-in-comsol-multiphysics/

or visualize this video for further explaination

https://www.comsol.com/video/equation-based-modeling-custom-simulations-comsol-multiphysics