Search found 5 matches

by Yongliang Ou
Thu Apr 15, 2021 10:08 am
Forum: solidification
Topic: Dendritic growth not observed
Replies: 1
Views: 169

Dendritic growth not observed

Dear Bernd, Recently I try to simulate one solidification process with which the dendritic growth is expected. However, results show planar growth. I tried to modify the following parameters: Smaller grid spacing: 0.01 μm Different kinetic coefficients: 0.1, 1, 5, 10 Smaller interval for updating di...
by Yongliang Ou
Thu Jan 28, 2021 4:57 pm
Forum: solidification
Topic: GES file error
Replies: 1
Views: 321

GES file error

Hi, I want to simulate the solidification process of Al with two solid phases. I prepared the GES file from thermal-cal that contains LIQUID, FCC L12, DIAMOND_A4 and MG2SI_C1 phases. It runs without error when I specify the solid phases as FCC L12 and MG2SI_C1, but I got errors when I try to change ...
by Yongliang Ou
Mon Dec 21, 2020 1:54 pm
Forum: solidification
Topic: High cooling rate and high resolution simulations
Replies: 3
Views: 652

Re: High cooling rate and high resolution simulations

Dear Bernd, Thank you so much for the suggestion! We increased the spacing to be 0.07 \mu m and the interface energy to be 1.62E-5 J/cm 2 , as shown below. # Phase interaction data # ====================== # # Data for phase interaction 0 / 1: # --------------------------------- # Simulation of inte...
by Yongliang Ou
Sat Dec 12, 2020 3:14 pm
Forum: solidification
Topic: High cooling rate and high resolution simulations
Replies: 3
Views: 652

High cooling rate and high resolution simulations

Dear all, Hi! Recently I try to simulate the dendrite formation process with high cooling rates (10 6 K/s) and high temperature gradients (10 5 K/cm). In the beginning, I used grid spacing 0.07 \text{\mu m} and found the driving force of the dendrite tip fluctuates a lot during the continuous dendri...
by Yongliang Ou
Fri Dec 11, 2020 1:41 pm
Forum: solidification
Topic: Exactly same results from separate calculations
Replies: 1
Views: 372

Exactly same results from separate calculations

Dear all, In order to collect data statistically, I set the following parameters in the driving file under the tag "Phase interaction data". # 'DeltaG' options: default # avg ...[] max ...[J/cm^3] smooth ...[Deg] noise ...[J/cm^3] offset ...[J/cm^3] avg 0.90 max 200.00 noise 1.00 Then I keep all par...