To answer 1. There should be new mandatory parts coming soon that addresses the wheels off the ground problem.k.ko100v wrote: ↑20 Mar 2025, 09:40After the first few runs there are two questions from my side:
1. Is there a way to lower the car to the ground?
The gap between the wheels and the reference plane is still present, which most likely has a significant impact on the results. I am currently using the R06 CAD parts set published by Andre at the beginning of the month.
2. Regarding cooling performance:
Since the wheels are off the ground, I focused on cooling. Initially, I obtained very poor results (0.7 m³/s for a single radiator). Even after significantly increasing the radiator size along with both the inlets and outlets, the improvement in airflow was minimal (0.7 → 0.9 m³/s).
Here is a visualization of the generated cooling stream:
https://imgur.com/pyK6ctv.jpg IN
https://imgur.com/73kkgTr.jpg OUT
Compared to older images I have seen, the airflow appears to have much higher density. The radiator has also been refined using MeshLab:
https://imgur.com/1c6S015.jpg
Do you think my setup might be incorrect, or is this behavior expected in this version of MFlow?
Thank you in advanced.
Regards,
Krasen
To answer 2. Welcome to mantium, where half the battle is cooling
I've held the view for a couple of years that the radiators themselves aren't porous enough, but I've come to accept that it's just part of the challenge. It will really depend on the bodywork behind the radiator and towards any cooling outlets, but I would say you have about expected results
In my experience the actual geometry of the duct is very important, potentially more so than the size of the hx or the openings. Look at the velocity slices and try to eliminate any separation. It also looks like your inlet has very little room to turn the flow into the radiator, your flow is coming in almost perpendicular to the hx face and then having to turn 90 degrees in a very small distance.
