Search found 17 matches
- Thu Jan 24, 2019 10:51 pm
- Forum: phase-field model
- Topic: general Phase field equation for multi-obstacle potential
- Replies: 4
- Views: 9178
Re: general Phase field equation for multi-obstacle potential
Hi Janin; Thanks for the explanation. I am writing the code from scratch for different phase-field models for grain growth and texture predictions. For my Ph.D. project, we are thinking to scale up our simulation domains (around a million grains). I asked you before about feasibility of doing these ...
- Mon Jan 21, 2019 7:59 pm
- Forum: phase-field model
- Topic: general Phase field equation for multi-obstacle potential
- Replies: 4
- Views: 9178
Re: general Phase field equation for multi-obstacle potential
Hi Janin; Thanks for your explanation. I have three more questions regarding these equations. 1) In these relationships, Is M_{\alpha \beta }^{\phi } the physical interface mobility? Is it equal to the user's input or it is modified in this relationship? 2) What does \nu mean in term of physical int...
- Mon Jan 21, 2019 3:19 am
- Forum: phase-field model
- Topic: general Phase field equation for multi-obstacle potential
- Replies: 4
- Views: 9178
general Phase field equation for multi-obstacle potential
Hi there; If I want to use the multi-phase-field model with the multi-obstacle potential option, what will be the final form of phase evolution? Is it the eq. 25 in the following paper? "Multiphase-Field approach for multicomponent alloys with extrapolation scheme for numerical application" in Phys....
- Tue May 15, 2018 7:54 pm
- Forum: phase-field model
- Topic: FD correction
- Replies: 3
- Views: 7123
Re: FD correction
Hi Deepu, Thanks for the reply. Yes, I have already studied these papers. I think the first paper is the general guideline of how you have got the phase field equation and also extrapolation scheme to use external thermodynamical databases. However, I couldn't find anything regarding FD-correction (...
- Tue May 15, 2018 3:08 am
- Forum: phase-field model
- Topic: FD correction
- Replies: 3
- Views: 7123
FD correction
Hi there;
I was wondering how do you extend your FD-correction formulism to multicomponent systems with non-conserved phase parameter? Any paper that I can refer to?
Thanks,
Ali
I was wondering how do you extend your FD-correction formulism to multicomponent systems with non-conserved phase parameter? Any paper that I can refer to?
Thanks,
Ali
- Tue May 01, 2018 12:36 am
- Forum: recrystallisation/grain growth
- Topic: interface mobility and energy
- Replies: 1
- Views: 5334
interface mobility and energy
Hi there, I am doing simulation on anisotropic grain growth where I use misorientation to describe interface mobility and surface energy. For now it is 2D and everything is fine. I want to go toward the 3D simulations but I just want to estimate the amount of physical memory that I need for the 3D s...
- Thu Dec 14, 2017 1:13 am
- Forum: phase-field model
- Topic: finite difference formulas
- Replies: 9
- Views: 10017
Re: finite difference formulas
Dear Bernd;
I forgot to ask you a question in the previous reply. For now, I choose fixed time increment for the simulations. Is it modified based on your multi-level criterion during the course of grain growth simulation?
Thanks,
Ali
I forgot to ask you a question in the previous reply. For now, I choose fixed time increment for the simulations. Is it modified based on your multi-level criterion during the course of grain growth simulation?
Thanks,
Ali
- Thu Dec 14, 2017 12:06 am
- Forum: phase-field model
- Topic: finite difference formulas
- Replies: 9
- Views: 10017
Re: finite difference formulas
Dear Bernd; Thanks for your kind reply. Just to verify my understanding, MICRESS solves phase field equation grain by grain and it doesn't solve phase field equation on whole domain. Right? Another question, To solve phase field equation using finite difference when you want to calculate the spatial...
- Fri Dec 08, 2017 10:15 pm
- Forum: phase-field model
- Topic: finite difference formulas
- Replies: 9
- Views: 10017
Re: finite difference formulas
Dear Bernd, Thanks for the comprehensive explanation. Actually, I need to do anisotropic grain growth and I really do not need to couple TQ or any diffusion with my calculation for now. However, I need fine grid size on a large domain as I have many grains with relatively small size in the microstru...
- Thu Dec 07, 2017 7:25 pm
- Forum: phase-field model
- Topic: finite difference formulas
- Replies: 9
- Views: 10017
Re: finite difference formulas
Hi Bernd, Thanks for your quick reply. Does it mean that if I want to do a simulation on a bigger domain or if I want to decrease the grid size to very small sizes, then I will have severe stability condition? Is there any implicit version of MICRESS? Because I think it will be more computationally ...