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step function in 3.5

Posted 2011年4月5日 GMT-4 05:19 Parameters, Variables, & Functions, Studies & Solvers 2 Replies

Toru Okada
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Hello!
How can i give as a heat source a step input.
In particular, i want my heat source to go to zero after some time but i cannot find the step function.
thanks
2 Replies Last Post 2011年4月5日 GMT-4 06:53
Edgar Kaiser
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Posted: 1 decade ago 2011年4月5日 GMT-4 05:42
Hi,

you can use something like Q*(t<t0). Q is the heat source, t0 is the switch-off time. This is a sharp step. If you want to smooth the step, use the flsmhs function. It is in the documentation.

Cheers
Edgar
Hi, you can use something like Q*(t
Toru Okada
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Posted: 1 decade ago 2011年4月5日 GMT-4 06:53
thanks, i wanted the sharp one!
thanks, i wanted the sharp one!

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