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implementation of Complex conjugate in PDE

Posted 21 mars 2011, 01:57 UTC−4 1 Reply

Jaeun Yoo
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Hello, I am trying to solve the time dependent Ginzburg-Landau equation, which incorporates the complex number and complex conjugate function. I have no idea how to handle the complex things in PDE. Please help me how to do that.

1 Reply Last Post 21 mars 2011, 04:15 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 21 mars 2011, 04:15 UTC−4
Hi

by default COMSOL works in real mode, but is able to switch to complex mode, sometimes by itself (when programmed to detect it), or by user settings. Then you need to enter and read out the values, ie. Bode plots must be programmed manually as "abs(varable)" and "atan2(imag(variable),real(varable)*180/pi"

check also the realdot() operator, and the phasor notation of COMSL

--
Good luck
Ivar
Hi by default COMSOL works in real mode, but is able to switch to complex mode, sometimes by itself (when programmed to detect it), or by user settings. Then you need to enter and read out the values, ie. Bode plots must be programmed manually as "abs(varable)" and "atan2(imag(variable),real(varable)*180/pi" check also the realdot() operator, and the phasor notation of COMSL -- Good luck Ivar

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