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Time based loading

Posted Aug 18, 2011, 12:27 p.m. EDT Modeling Tools & Definitions, Parameters, Variables, & Functions Version 3.5a, Version 4.0, Version 4.1, Version 4.2 0 Replies

Rakesh Dhote
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Hello everyone,

I have one question regarding a Comsol loading implementation.

I would like to implement the first space derivative based loading in the whole domain as

ux(at next time step t ) = ux [at previous time step (t - [Delta t])] + constant * [Delta t]

where u is the dependent variable, ux is the first derivative in space direction x, t is the current time step, [Delta t] is the time increment.
Is it possible to implement such loading based on the results of previous time step? If so, please share the procedure/function to implement this.

Thanks in advance.

Rakesh
0 Replies Last Post Aug 18, 2011, 12:27 p.m. EDT
COMSOL Moderator

Hello Rakesh Dhote

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