The AOX package adds the most downforce
Of the six configurations, the AOX package gives the largest downforce increase in LES too.
Case study · Flow visualisation
SEEING THE FLOW PORSCHE 992 GT3 IN LES
The car from our track study, run again in AOX LES to show how the air moves around it.
- Front share of downforce with the AOX package in LES — the track study reports about 41%
- 41.2%
- Downforce from setting the ADRO wing from 0° to +10°, same setup
- +82%
- Configurations run with identical settings
- 6
- Simulated road speed
- 120 km/h
LES absolute values are still being certified. Every comparison here is between configurations run with the same grid and settings.
01 / WHY LES
One picks the shape. The other shows the flow.
The AOX optimisation solver is built for speed. It compares shape candidates quickly and picks the one that works best.
LES, large-eddy simulation, answers a different question. It follows the air as it changes over time, so you can see the smoke, the streamlines and the wake behind the car.
Here we take the Porsche 992 GT3 from our track study and run it again in AOX LES.
02 / THE AOX PACKAGE IN MOTION
Air around the front splitter
Smoke rendered from the LES time-averaged field and turbulence statistics. A visualisation, not the instantaneous flow itself.
03 / STOCK AND ADRO WING
Stock wing, ADRO wing
Centre-plane streamlines and 3D smoke, seen from the side.
04 / SAME DIRECTION AS THE TRACK
Same direction as the track
Six configurations. One grid. One set of settings.
We ran six configurations: no rear wing, the stock wing, the ADRO wing at −5°, 0° and +10°, and the AOX package. The downforce results point the same way as the track study.
41.2% at the front
The front share of downforce with the AOX package is 41.2% in LES. The track study reports about 41%.
+82% from wing angle
Setting the ADRO wing from 0° to +10° raises downforce by 82%, with everything else unchanged.
For rear wings, the change in downforce from AOX LES agrees well with the wind tunnel. See the DrivAer hp-F rear wing study.
05 / REFERENCES
Notes and references
Simulation setup
- AOX LES, standard grade
- Road speed 120 km/h, rotating wheels
- Same grid and settings for all six configurations; comparisons cover downforce and its front share
Related case studies
- AOX-driven performance: Porsche 992 GT3 — the optimisation and track study at YeongAm International Circuit
- LES against the wind tunnel: DrivAer hp-F rear wing — rear wing downforce from AOX LES compared with Cranfield wind tunnel data