Mobile Particle

[mnabilbhuiyan]

Hello MOOSE users,
Accept my warm greetings. I am trying to simulate grain coarsening with mobile particles. I am following this slide. I badly need some guidance how to make these particles mobile. We want to see during coarsening if these particles change their positions how the micro structure will be changed.
.
my kernel as following:
[Kernels]
# Kernel block, where the kernels defining the residual equations are set up.
[./PolycrystalKernel]
c = c
# Custom action creating all necessary kernels for grain growth. All input parameters are up in GlobalParams
[../]
[]
[AuxVariables]
[./c]
[./InitialCondition]
type = MultiSmoothCircleIC
variable = c
invalue = 1.0
outvalue = 0.0001
bubspac = 30.0 # This spacing is from bubble center to bubble center
numbub = 25
radius = 20.0
int_width = 1.0
radius_variation = 0.2
radius_variation_type = uniform
[../]
[../]

Best Regards,
Nabil

[SudiptaBiswas]

First, you might consider using PolycrystalVoronoiVoidIC to set up the initial conditions. Next, you need to include the Cahn-Hilliard equation in the system to capture the evolution of the particles/bubbles. The mobility corresponding to the CH equations would dictate the movement of these particles.

[mnabilbhuiyan]

Thank you

[KamalnathOSU]

Dear Nabeel ( @mnabilbhuiyan ) ,

I am also interested in studying grain growth phenomena. Is the slide which you shared, open for public ? If so, can you share the link for the slides ?

.Regards,
Kamal