MICRESS Forum

Hi Moritz, I thought about simulating a similar scenario for laser beam welding in a 2d heat conduction case. I have not come up with a working simulation yet. Maybe my humble considerations will help you. As far as I know the angle of the dendrite has two sources i) the orientation of the parent gr...

Hello all I run a directional solidification model with an initial grain at the bottom. I simulate one solid phase. Furthermore, I allow an additional nucleation from the liquid phase. For this I use the seed density model with 10 classes and give verbose output for nucleation. :arrow: Now I would l...

Yes, we also use python to calculate the fs-T curves. Thanks for your quick and helpful reply.

Hello, we calculated a liquid to solid phase transformation. A typical directional growth case. Now, we want to compare the scheil gulliver mass fraction of solid over temperature curves with the MICRESS simulation. For this, we export the phase output as a text file and use python to calculate the ...

Hallo Ralph, I used now the following command: # Overwrite files with the same name? # Options: overwrite write_protected append # [zipped|not_zipped|vtk] # [unix|windows|non_native] overwrite vtk ascii However, the simulation doesn't finish and I don't reach the final temperature at the bottom I ai...

Hi, I currently run a simulation with 200/1/ 16 000 cells (x/y/z) in order to calculate the directional solidification ranging from liquid to eutectic temperature. I want to know at which temperature cohesion between the solidifying dendrites occur and get an estimation for the fraction of solid as ...

Dear all: I want to ask two things in this post: 1 st theories to calculate the tip undercooling and 2 nd solutions to the theories to calculate the tip undercooling. 1) In order to calibrate the numerical parameter (kinetic coefficient), I need to approximate before the tip temperature (undercoolin...

Dear Bernd: thanks for you tip. I wanted to make sure, that I understood the pseudo binarization correctly. Let's assume that I have the alloy Al - 1.0 Si - 0.5 Mg with a distribution coefficient k_si = 0.11 and k_mg = 0.51. This will lead to a pseudo initial concentration of c_s^* = 1.0 + 0.5 = 1.5...

Hi all: I set up a simulation for AlMgSi alloy. I want to measure the PDAS for different solidification conditions. I started off with a smaller simulation domain (108x1x408) with a grid resolution of 0.07. I still think that the simulation is not valid yet regarding the numerical parameters. I stil...

Yes, using "front_temp" as function of time you easily can calculate the mean average front velocity (by taking the derivative and divided by the temperature gradient). In cases without moving_frame, it is equivalent to the total fraction of solid. Bernd Dear CharMIC and Bernd, I calculated the den...