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Modeling Microwave heating

Posted 30 lug 2010, 04:14 GMT-4 0 Replies

Huang Jonson
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Hello
I am trying to model Microwave heating-structure interaction and keep getting errors:

Failed to evaluate expression.
- Expression: conj(sign((mod1.mh.Pin/mod1.mh.pModeFlow 1)))
Failed to evaluate variable.
- Variable: mod1.mh.pModeFlow 1
- Defined as: mod1.mh.intport1(if((imag(mod1.mh.alphaport 1)==0),1,(((real(((mod1.mh.tE0modex 1*conj(mod1.mh.tH0modey 1))-(conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modey 1)))*mod1.mh.nz)+((real(((mod1.mh.tE0modey 1*conj(mod1.mh.tH0modez 1))-(mod1.mh.tE0modez 1*conj(mod1.mh.tH0modey 1))))*mod1.mh.nx)+(mod1.mh.ny*real(((conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modez 1)+(mod1.mh.tE0modex 1*(-conj(mod1.mh.tH0modez 1))))))))*0.5)))
Failed to evaluate expression.
- Expression: mod1.mh.intport1(if((imag(mod1.mh.alphaport 1)==0),1,(((real(((mod1.mh.tE0modex 1*conj(mod1.mh.tH0modey 1))-(conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modey 1)))*mod1.mh.nz)+((real(((mod1.mh.tE0modey 1*conj(mod1.mh.tH0modez 1))-(mod1.mh.tE0modez 1*conj(mod1.mh.tH0modey 1))))*mod1.mh.nx)+(mod1.mh.ny*real(((conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modez 1)+(mod1.mh.tE0modex 1*(-conj(mod1.mh.tH0modez 1))))))))*0.5)))
Failed to evaluate expression.
- Expression: if((imag(mod1.mh.alphaport 1)==0),1,(((real(((mod1.mh.tE0modex 1*conj(mod1.mh.tH0modey 1))-(conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modey 1)))*mod1.mh.nz)+((real(((mod1.mh.tE0modey 1*conj(mod1.mh.tH0modez 1))-(mod1.mh.tE0modez 1*conj(mod1.mh.tH0modey 1))))*mod1.mh.nx)+(mod1.mh.ny*real(((conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modez 1)+(mod1.mh.tE0modex 1*(-conj(mod1.mh.tH0modez 1))))))))*0.5))
Failed to evaluate expression.
- Expression: if((imag(mod1.mh.alphaport 1)==0),1,(((real(((mod1.mh.tE0modex 1*conj(mod1.mh.tH0modey 1))-(conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modey 1)))*mod1.mh.nz)+((real(((mod1.mh.tE0modey 1*conj(mod1.mh.tH0modez 1))-(mod1.mh.tE0modez 1*conj(mod1.mh.tH0modey 1))))*mod1.mh.nx)+(mod1.mh.ny*real(((conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modez 1)+(mod1.mh.tE0modex 1*(-conj(mod1.mh.tH0modez 1))))))))*0.5))
Failed to evaluate expression.
- Expression: if((imag(mod1.mh.alphaport 1)==0),1,(((real(((mod1.mh.tE0modex 1*conj(mod1.mh.tH0modey 1))-(conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modey 1)))*mod1.mh.nz)+((real(((mod1.mh.tE0modey 1*conj(mod1.mh.tH0modez 1))-(mod1.mh.tE0modez 1*conj(mod1.mh.tH0modey 1))))*mod1.mh.nx)+(mod1.mh.ny*real(((conj(mod1.mh.tH0modex 1)*mod1.mh.tE0modez 1)+(mod1.mh.tE0modex 1*(-conj(mod1.mh.tH0modez 1))))))))*0.5))
Failed to evaluate operator.
- Operator: if
- Geometry: 1
- Boundary: 1
Failed to evaluate expression.
- Expression: imag(mod1.mh.alphaport 1)
Failed to evaluate variable.
- Variable: mod1.mh.alphaport 1
- Defined as: sqrt((((pi*11.627906976744187)^2)+(-(mod1.mh.k^2))))
Attempt to evaluate real square root of negative number.
- Function: sqrt

Does anyone know what this means. I am new to comsol and this is definitely not an easy task for me.

Thank you
0 Replies Last Post 30 lug 2010, 04:14 GMT-4
COMSOL Moderator

Hello Huang Jonson

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