It is harder and it takes longer to provide support without full details.To speed up the process and quickly solve your issues this is a reminder to post as much information as you possibly can: This is a F1 CFD for me and my classmates’ school project.I just want to have a basic aerodynamic info of this model So what’s happening is that my friend adjust the rear wing angle and when I use the same setting to generate mesh,this happen:a hole in the floor https://www.simscale.com/projects/kenpu2008/f1_test_2_-_copy_1971822093 It’s run 5