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How can i introduce variables in priffix and suffixes in comsol ?

Posted 2011年11月11日 GMT-5 11:10 Version 4.2 3 Replies

Krishnachaitanya S
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Hi,
Can any one suggest me how to indicate variable with preffixes and suffixes in comsol 4.2. If it is possible please tell me how :)...

Regards,
Krishna Chaitanya S.
3 Replies Last Post 2011年11月12日 GMT-5 05:55
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2011年11月12日 GMT-5 04:11
Hi

I'm not aware of a list, many are presented in the latest doc version, I usually search in the "Equation view" for the main physics nodes.

basically the physics identifier come first, separaed by a variable name preceded by a "." i.e solid physics density "solid.rho"

If you have several models its mod1.solid.rho and mod2.solid.rho to distinguish them, but if you are working under mod1 in a multiple model name the default attached to "local mod1." variables

--
Good luck
Ivar
Hi I'm not aware of a list, many are presented in the latest doc version, I usually search in the "Equation view" for the main physics nodes. basically the physics identifier come first, separaed by a variable name preceded by a "." i.e solid physics density "solid.rho" If you have several models its mod1.solid.rho and mod2.solid.rho to distinguish them, but if you are working under mod1 in a multiple model name the default attached to "local mod1." variables -- Good luck Ivar
Krishnachaitanya S
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Posted: 1 decade ago 2011年11月12日 GMT-5 04:38
Hi Ivar,
The suffix and preffixes i talked about are different to that u have mentioned ...

For an example i have different youngs modulus for a same material at different phases(Martensite and Austenite). If i have to indicate it with variable name Ea and Em (suffix or preffix as a/m) can it be indicated?

Krishna Chaitanya S.
Hi Ivar, The suffix and preffixes i talked about are different to that u have mentioned ... For an example i have different youngs modulus for a same material at different phases(Martensite and Austenite). If i have to indicate it with variable name Ea and Em (suffix or preffix as a/m) can it be indicated? Krishna Chaitanya S.
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 2011年11月12日 GMT-5 05:55
Hi

I believe that is depending on your model, you might define two materials data and then define the final "user defined Young modulus" by a combination of your two values (eiher based on rations fields delta(x,y,z) or by some other means.

I believe it would be tricky to try to change all COMSOL internals equations using E (Young modulus references) to your two values.

How do you want to deal with a material with ea and em, you must have a way to tell what is the resulting from a combination of these two E's, or ? have I mssed something

--
Good luck
Ivar
Hi I believe that is depending on your model, you might define two materials data and then define the final "user defined Young modulus" by a combination of your two values (eiher based on rations fields delta(x,y,z) or by some other means. I believe it would be tricky to try to change all COMSOL internals equations using E (Young modulus references) to your two values. How do you want to deal with a material with ea and em, you must have a way to tell what is the resulting from a combination of these two E's, or ? have I mssed something -- Good luck Ivar

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