Hi everyone! It seems like the group has been a bit quiet lately so I thought I’d spark some discussion with a question about my simulation project. I’m currently working on a reactor simulation using Ansys Fluent with the Discrete Phase Model (DPM) enabled. The simulations are steady-state and I monitor the residuals and balance equations to determine if my solution has converged. I’ve set the residuals to (10^{-6}) for energy and (10^{-5}) for the other variables. However my solution consistently fails to converge. Has anyone encountered a similar issue or have any suggestions on how to achieve convergence? Any tips or advice would be greatly appreciated! Looking forward to your insights! 😊

Hi everyone, I was lately hooked on some new meshing strategies to include in SplashFOAM, and I was curious to know what your preferred meshing tools/methods are. Feel free to write your experience with meshing in the comments below. This feedback will help me a lot. Cheers! [N.B.: I may consider generating some meshing templates for canonical flows at some point, so stay tuned ;)]

Hello everyone, I am currently facing an issue in Ansys Fluent while working on a reactor simulation. After running my simulation, I encountered the following messages in my residual transcript: DPM Iteration .... temperature limited to 1.000000e+00 in 8 cells on zone 10 in domain 1 number tracked = 40, escaped = 17, trapped = 23 turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 457 cells 20 6.2527e+01 2.7448e-03 2.9115e-03 3.7521e-03 5.6725e-03 3.2007e-02 1.4097e-01 4.4115e-04 0.0000e+00 0.0000e+00 9.1858e-04 9.1858e-04 3:13:26 9990 reversed flow in 14 faces on outflow 14. temperature limited to 1.000000e+00 in 18 cells on zone 10 in domain 1 I initially performed a simulation with a gas velocity of 6 m/s, and the results were fine. However, after changing the velocity to 1 m/s, I encountered the above issues. Does anyone know how to address these problems? You can find the transcript attached to this query

Hi CFD Dose Communuity, I am working on heterogebous combustion of char particles in Ansys Fluent. As I have to write the UDF code for this problem but I am completely new to this. Is there any platform where I can learn how to write the code or I can get previous similar code to alter it for my specific problem? Thanks.