The Aston Martin team made significant updates to their car, the AMR23, for the Montreal Grand Prix. One of the key changes was the sidepod arrangement, which featured a unique “waterslide” channel on the upper surface. The new bodywork retained the same design but included improvements to the undercut at the front lower edges of the sidepods, as well as a narrower and deeper waterslide feature.
The purpose of these updates was to optimize airflow to the rear of the car. The undercut and waterslide work in unison to speed up the airflow, creating a more powerful airstream directed between the rear wheels. This airflow then flows over and around the diffuser walls, enhancing underfloor performance.
The sidepods play a crucial role in this process. Their flow-adjusting features condition the airflow, helping the floor work effectively. By increasing the pressure difference with the rear of the car, the sidepods contribute to improved performance. Narrowing and deepening the waterslide on the upper surface of the pontoon further energizes the flow.
According to Aston Martin Technical Director, Dan Fallows, these sidepod alterations were a significant physical update. However, he emphasized that there were less visible yet equally significant changes made to the car in the past. The philosophy behind these updates is to constantly develop the car instead of waiting for major updates after a few races.
The Aston Martin team aims to improve the car’s operating window, making it manageable and usable on various tracks. They have identified strengths and weaknesses on different circuits and want to enhance the car’s performance across the board.
As Aston Martin continues to compete in the upcoming races, such as Austria’s Red Bull Ring, Britain’s Silverstone, and Hungary’s Hungaroring, it will be interesting to see if they can close the gap on Red Bull, who has won all eight races so far this year.
In conclusion, the updates made by Aston Martin to their AMR23 car for the Montreal Grand Prix focused on enhancing the sidepod arrangement. The changes aimed to optimize airflow to the rear of the car and improve underfloor performance. While the sidepod alterations were visually significant, there were also less visible yet important updates made to the car. Aston Martin is working on constantly developing the car to improve its operating window and performance on various tracks.
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The Aston Martin that Fernando Alonso drove to second in Montreal, just nine seconds behind Max Verstappen’s Red Bull winner, featured a much-updated sidepod arrangement.
The arrangement of the AMR23’s sidepods, with their deep “waterslide” channel in their upper surface, was already highly distinctive. The new bodywork retains the same basic design but with improved undercut at the front lower edges of the sidepods, while the “waterslide” feature has been narrowed and deepened.
The undercut and waterslide work in unison to speed up the airflow to the rear of the car. The two airflows merge to create a more powerful airstream directed between the rear wheels, where it flows over and around the diffuser walls, increasing underfloor performance.
As the airflow from the scour gets there, it goes through the various cutouts along the edges of the floor, setting off vortices, helping to seal the floor.
Scour creates lower air pressure behind which oncoming air rushes to fill. Anything that increases that pressure difference, such as exaggerating the undercut, will be considered desirable. Similarly, narrowing and deepening the waterslide on the upper surface of the pontoon will energize that flow.
Aston Martin Technical Director fallows give He accepted that the sidepod alterations were a big visual change, but was downplaying their importance. “Physically, it’s a very big update,” he said, “but there are less visible things that we’ve done to the car before that are also quite significant.
“We are trying to put constant development on the car instead of waiting for a few races and then having a big update. This isn’t necessarily the biggest update we’ve put on the car in terms of performance.
“The sidepods are flow adjusting features, conditioning the airflow to the rear of the car, but also helping the floor work well. The philosophy that we’ve adopted, that we’re seeing being adopted throughout the network, is something that helps make this concept of flooring work as well. In and of itself, maybe the actual performance boost to the bodywork alone isn’t much, but it helps make everything else work.
“We tried to improve the operating window of the car. We can see that there are some tracks where we are weaker or stronger and we want to try to make it manageable and usable on as many tracks as we can.”
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with a variety of differently configured circuits on the horizon: Austria’s Red Bull Ring, Britain’s Silverstone and Hungary’s Hungaroring are next – it will be fascinating to see if Aston Martin can continue to whittle away the lead that has seen Red Bull win all eight races so far this year .
https://www.formula1.com/en/latest/article.tech-tuesday-has-aston-martins-canadian-gp-upgrade-made-them-a-genuine.5vCgydlJ7oIdIsb8WsOEds.html
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