As I told you, I would give you the feedback of this simulation as soon as I finished some tasks I needed to do.
Just to introduce something amazing: this simulation was part of the RS Racing Formula SAE team, from Federal University of Rio Grande do Sul, Brazil, which reached the 2nd place in the National Formula SAE competition and conquered a vacancy in the International Formula SAE competition that will happen in June, 2016, at Lincoln, USA!!
Well, the simulation was quite simple in technical terms, and the objective was basically to predict the drag and down-force coefficients of the car. Here is some images of the presentation we did there:
1. Geometry was made in a CAD software
2. Some simplifications were made to reduce issues in mesh generation, like rounding motor,battery and cylinder surfaces.
3. Imported geometry into SimScale platform.
After having some issues which are related to this thread “CAD issues for CFD analysis”, everything was properly supported by SimScale team and the geometry was read fine.
4. Mesh generation
The Cd obtained for 20m/s was 0.52, and car had lift instead of downforce of 0.16. That shown us the car need some improvement in its aerodynamics, since in Formula SAE competition having downforce is much more important than having a small drag value, once there is not too many straight sections and the velocity is not that high.
Below you can find some pictures (obs: I struggled to plot streamlines in ParaView, later if someone can give me some hints, I accept! :D)
For the scope of the team, that was a good simulation, since the values of coefficients we wanted to predict were not going to be use for nothing, only to know the aerodynamic behaviour of the car. The careen was already design and manufactured when the simulation was done. For the international competition we are planning to construct a whole new car. Therefore, much more care with mesh generation will need to be taken (I did not do any mesh independence study in this case). We are going to include a diffuser in the car as well changing the whole shape of it in order to reduce some recirculation we noticed with this simulations (close to the pilot).
So, giving you guys a feedback, I really liked to use the platform. I do not anything to complain, because when I did (creating this thread) I was perfectly assisted. I plan to keep using SimScale tools for the next Formula SAE simulations including FEM analysis (I only need to work around the core hours). If I do so, I will keep posting here feedbacks and doubts!
Thank you all that helped me! And feel free to like our Formula SAE facebook page: https://www.facebook.com/RSRacingTeam?pnref=story