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defining the dual phase lag (DPL) Bio-heat equation in cofficient form of PDE mode(especially for Ivar)

Posted 29 mars 2011, 01:33 UTC−4 Heat Transfer & Phase Change 2 Replies

Nilamani Sahoo
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Hi
I have attached my DPL bioheat equation. I want to define this equation in coeffficient form of comsol 3.5. Can you suggest me how to dfine it in comsol (espacially the non-linear heat flux gradient term in right hand side of the DPL equation attached here).

Please help me with your comments.
thanks

Attachments:

2 Replies Last Post 30 mars 2011, 02:39 UTC−4
Francesco Vergottini
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Posted: 1 decade ago 29 mars 2011, 17:49 UTC−4
Hi,
what are the boundary conditions for your problem?
Moreover, I think that the General form PDE should be better for non linear partial differential equations
Hi, what are the boundary conditions for your problem? Moreover, I think that the General form PDE should be better for non linear partial differential equations
Nilamani Sahoo
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Posted: 1 decade ago 30 mars 2011, 02:39 UTC−4
Hi Francesco

I have taken the two boundary condition conditions(Neumann and Dirichlet). The problem is how to define the extra gradient flux term in the general PDE equation.Please look at the attached fife.There is an temperature gradient term multiplied by thermal conductivity and relaxation time in DPL Bioheat equation I have defined as diff(del^2(T),t). Is it correct?

Thanks and Regards
Hi Francesco I have taken the two boundary condition conditions(Neumann and Dirichlet). The problem is how to define the extra gradient flux term in the general PDE equation.Please look at the attached fife.There is an temperature gradient term multiplied by thermal conductivity and relaxation time in DPL Bioheat equation I have defined as diff(del^2(T),t). Is it correct? Thanks and Regards

Attachments:

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