To start here’s a link to my project: https://www.simscale.com/projects/premalp/flow_around_sphere_higher_flow_rate_pt_2/
Hi all! I am very new to SimScale (and CFD in general) and am trying to create a simple setup of water flowing past a sphere. When I run this simulation, I find that the drag coefficient does not match up with what is expected (I have tried flow rates that correspond to Re values ranging from 0.1 to 100000). Right now, I am using Re = 100, and I have tried making some modifications to the mesh but those changes have not changed the results. Does anyone have suggestions for things I should try modifying to get the correct drag coefficient?
For reference, with the current input flow rate, the expected drag coefficient is 0.993, but the simulation converges at about 1.10.
If anyone is curious, here is my source for expected drag coefficient : https://www.sciencedirect.com/science/article/abs/pii/S0032591007006225
Any help would be greatly appreciated! Thank you!