Aerodynamics & Aeroacoustics

Hey everyone!

I’ve started working on the aero kit for the 991.2 GT3 RS, focusing specifically on managing the underbody airflow with some custom strikes. To ensure the fitment and functionality, I used a scan of the 991.2 GT3 RS as a base to model and 3D print some test pieces. These pieces will help us test the fitment before moving forward with more advanced design refinements.

Next step is to perform CFD (Computational Fluid Dynamics) analysis to further fine-tune the design and make sure we’re getting optimal performance. I’m excited to see how this project progresses and will be sharing updates as I go.

Anyone here worked on similar aero mods? Would love to hear your thoughts or experiences!

Exciting analysis coming soon! I’ll be diving into a CFD simulation of the Porsche 991.2 GT3 with the windows down to explore buffeting effects. The analysis will be conducted using OpenFOAM, with an unsteady LES approach—unless my computer struggles! Stay tuned for insights and results.

Conclusions will be presented first to accommodate readers with limited time. For those interested in a deeper dive, the following sections provide background on aeroacoustics and a detailed explanation of the data collection process.

Conclusions

On-road testing effectively identified trends among the evaluated anti-buffeting devices, demonstrating that a commercially available solution, as shown above, successfully reduces interior cabin buffeting in a 2019 Porsche GT3 RS.

To achieve more controlled and precise evaluations, future testing should incorporate wind tunnel experiments and/or computational fluid dynamics (CFD). These methods offer a stable environment and can provide deeper insights into the flow physics affecting the dBA results.

Investigation Overview

Focus:

• Exploring ground vehicle aeroacoustics with an emphasis on buffeting mitigation

Motivation:

• Assess aeroacoustic...