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Piecewise funtion to determine voltage pulse

Posted Nov 14, 2018, 12:16 p.m. EST 1 Reply

Sami Hawasli
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Hello all,

I have a simple thermoelectric simulation I want to run. I want to create a voltage pulse across a coil and calculate the coil temp over time. I cannot define my piecewise voltage function correctly in the definitions. I keep getting an undefined variable error when I try and run the simulation

Thanks in advance Sami

1 Reply Last Post Nov 14, 2018, 1:29 p.m. EST
Jeff Hiller COMSOL Employee

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Posted: 6 years ago Nov 14, 2018, 1:29 p.m. EST

Hello Sami,

In the Electric Potential 1 node, you are trying to pass to the function called Volt the argument "sec", but "sec" is not defined. If your intention was to pass time in seconds, as I suspect, then the notation is simply "t", as in Volt(t).

Best,

Jeff

-------------------
Jeff Hiller
Hello Sami, In the Electric Potential 1 node, you are trying to pass to the function called Volt the argument "sec", but "sec" is not defined. If your intention was to pass time in seconds, as I suspect, then the notation is simply "t", as in Volt(t). Best, Jeff

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