![Verus Engineering FRS/BRZ Splitter Endplates Verus Engineering FRS/BRZ Splitter Endplates](/web/image/7621/brz%20end%20plates2.jpg?access_token=dbdfa006-b56d-4030-b310-7a9641e77e85)
Purpose:
This document contains diagrams, information, and notes regarding the CFD analysis of the front splitter endplates for the FR-S and BRZ.
Design:
The front splitter endplates were designed to increase front-end downforce of the vehicle for improved performance at high rates of speed. By creating a high-pressure pocket of air above the splitter and in front of the front wheels, we are able to increase front-end downforce. By reducing the airflow that hits the wheel head-on, we also reduce the airflow into the wheel well and thus lift generated in the wheel well.
Like all of our analysis before, each analysis was done using a half-car analysis since no yaw testing was completed. This is done using symmetry down the centerline of the car. Significantly less computational processing power is necessary when using a half-car model and was the reason behind this analysis approach. The meshing of the car is done using first a surface mesh and then volume mesh. To find a suitable mesh size for the analysis, a grid convergence study was done. A volume mesh count of 10 million cells was considered within the room for accuracy using mesh sensitivity analysis.
![Verus Engineering FRS/BRZ Splitter Endplates CFD Vehicle Model Verus Engineering FRS/BRZ Splitter Endplates CFD Vehicle Model](/web/image/7622/geometry_01.png?access_token=52b7e5d9-b0ee-45f1-9dd3-17c5cd571bd4)
The Vehicle with Components in CFD Software
![Verus Engineering FRS/BRZ Splitter Endplates Verus Engineering FRS/BRZ Splitter Endplates CFD Vector Plot](/web/image/7623/vector_01.png?access_token=78f7377b-f605-455c-a33b-5a8e77a8d5c9)
Vector Plot of Front Splitter Winglet
![Verus Engineering FRS/BRZ Splitter Endplates CFD Streamline Plot Verus Engineering FRS/BRZ Splitter Endplates CFD Streamline Plot](/web/image/7624/streamline_01.png?access_token=59b10abd-3af5-4655-87d5-7bed4bff8e30)
Streamline Plot of Front Splitter Winglet Test
![Verus Engineering FRS/BRZ Splitter Endplates CFD Scalar Plot Verus Engineering FRS/BRZ Splitter Endplates CFD Scalar Plot](/web/image/7625/scalar_01.png?access_token=b6f25003-9b4e-4e5f-af6e-9e9ae8b1abf3)
Scalar Plot of Front Splitter Endplate CFD Analysis
Numerical Data:
The front splitter endplates increase downforce and drag according to our CFD analysis. The additional front downforce comes with a penalty of increased drag, however, the l/d (lift over drag ratio) for this component is favorable. To put in another way, the amount of downforce this part produces is significant compared to the amount of drag increase.
![Verus Engineering FRS/BRZ Splitter Endplates CFD Data Verus Engineering FRS/BRZ Splitter Endplates CFD Data](/web/image/7626/Velox_FRS_BRZ_CFD_Front_Endplate_Data.png?access_token=d655383d-08a9-4d32-ab66-b865a5081061)
Conclusion:
At a mere 100 MPH, these two pieces add an expected 40 lbs of downforce to the car. These can be used to help balance out a rear wing or allow the end-user to run a bit more wing angle for faster times.
As we have said before, real-world benefits may differ as this is computational analysis. Something as simple as ride height or wheel choice can vary results, as well as various other aspects. Real-world results could be better or worse than what is shown above. Keep in mind we did NOT vary any of these aspects and kept it a very simple A to B comparison with the results outlined above.
Very few companies perform CFD or wind tunnel analysis on any of their aerodynamic pieces. As a consumer, you can rest assured that you are receiving a quality component with engineering analysis and theory backed components that perform as well as they look.
Front Splitter Endplate CFD Analysis