Hi guys, I had some problems with the Simulation of homework 2. Following error accured: The job execution was aborted, possibly due to a numerical instability. Review the log to identify reasons: unphysically large field values, extremely small time step size, etc. Modifying numerical settings an…

Hi @shivansh0 , You have an extra mesh refinement that might be messing with the mesh creating a ton o illegal cells. Remove the extra refinement, generate the mesh again and run the case. [image] [image]

@dwagner , Just took a quick look - it seems you have assigned extra boundary conditions [image] Regarding what you need to submit: you have to only perform the simulation shown in this homework post. i.e. with all rotaing BC, porous media and MRF zones. One mesh one simulation, please ignore co…

Thx for your reply! In the step by step tutorial (page 1) are the last 2 steps for rotating wheels. link here: [image] Step-by-Step Tutorial: Homework of Session 2 Fluid Flow / CFD Recording [Formula Student / Formula SAE Workshop: Complete Car Aerody…

Hi @dwagner . You are correct in fact in the set up -I did not read deeply enough into the tutorial. My colleague Ali has written an update that might be relevant to your case: [image] Step-by-Step Tutorial: Homework of Session 2 Fluid Flow / CFD Hello Every…

Hi, I am facing the same issue as above “The job execution was aborted, possibly due to a numerical instability. Review the log to identify reasons: unphysically large field values, extremely small time step size, etc. Modifying numerical settings and time step size could resolve the issue.” tried …

FSAE - CFD Webinar - homework 2

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dwagner December 12, 2016, 1:35pm 3

Thx for your reply!

In the step by step tutorial (page 1) are the last 2 steps for rotating wheels.
link here:

When I dont need these boundary conditions, I can simply delete them …

Greetings
David