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How can I define an arbitrary function as an initial condition?

Posted 2017年12月26日 GMT-5 05:47 Parameters, Variables, & Functions 1 Reply

hyeonwoo park
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Hi!

I am new to COMSOL, and I am trying to solve the diffusion equation by PDE interface module.

For the initial condition of the diffusion,

I want to define square concentration of amplitude 1 which ranges from x=44 to 84 within total range (0 128)

How can I define this function and use it as the initial condition?

Thank you for your attention!

1 Reply Last Post 2018年1月3日 GMT-5 02:11
Lasse Murtomäki
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Posted: 7 years ago 2018年1月3日 GMT-5 02:11

This problem has been discussed in this forum quite frequently. Type, e.g. "pulse train" in the search field.

BR Lasse

This problem has been discussed in this forum quite frequently. Type, e.g. "pulse train" in the search field. BR Lasse

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