The team races the No.
NASCAR's 12222 Cup cars are the most badass-looking cars in series history
Stock car racing is an exciting field, inspiring many especially with the fraternity of mechanical engineers and racers taking part in competitions around the globe. In modern racing, many advanced technologies are available, and it is therefore imperative to be up-to-date to keep a competitive edge. In race car dynamics, even a small design change can shave off seconds that matter in a race. With the new aerodynamic package released by NASCAR for next year, more design changes than ever will be needed for racers to compete and comply with racing regulations. Germain Racing is using the SimScale cloud-based simulation platform to optimize their car design and reduce drag for higher speed.
This is done by computing and observing the airflow as it moves. SimScale can also provide the drag of each car design or of individual components, which helps designers track their progress with every design improvement.
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Airflow and pressure distribution around the car determined with SimScale are used to compare designs both qualitatively and quantitatively. SimScale is very quick and easy to use. Onshape allows us to make surface changes very quickly, and import our native CAD files directly to SimScale.
The model was created in the cloud using Onshape , directly supported from the SimScale interface. A highly optimized mesh was generated to capture the turbulent airflow around the vehicle. The final mesh had around 28 million cells.
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It was possible to perform multiple simulation runs in parallel, with different incident angles to mimic the car driving around a curve. Hence, the same vehicle speed was defined in multiple directions, which is typical for analysing race car dynamics. This means that within a single working day, multiple results can be analyzed and design decisions can be made.
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It was noticed that small vortices were formed in different local regions around the vehicle with different designs. As any race car fan knows, not all vehicles are equipped with the cameras; they typically go in the cars of the most popular drivers, those the broadcasters want to see or that the fans are clamoring for. How does the image get from the car to your living room? As noted, in the past, the signals from the in-car cameras were projected to a hovering helicopter, but that has been replaced with a more cost efficient method.
Using Onshape and SimScale
Universe Optics designs and manufactures optical lenses for industrial, medical, high tech and electronic applications. Standard and custom hi-res lens assemblies.
Cars scream around the track at speeds approaching mph, yet a mile NASCAR race can be decided by a few tenths of a second. A crucial part of their technology arsenal is Geomagic Design X.
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BMI co-founder, Michael Henderson, provides the expertise behind their aerodynamic advantage. For Henderson, who is also involved in the development of a supersonic business jet, there is little difference between aircraft and racecars in terms of aerodynamics.
While racecars are far from supersonic, Henderson believes that aerodynamic excellence will break a few barriers. It helps us to visualize the changes that will translate to more speed. Other teams rely on wind tunnels, but the results are inaccurate. The laser scanner produces point clouds that define the entire car, including the undercarriage, and the software from 3D Systems processes the point clouds to produce surface data that fuels the CFD programs.
According to Anastos, AVR looks for minor adjustments, some almost undetectable, that yield an increase in available horsepower. On the same track, a 0.
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