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The specifics of flow-vis aero paint, F1 Teams using its to evaluate airflow

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0c1680cc-7903-434d-b280-46d6738b885d_800McLaren ran “Flow-Viz” paint for first time on their car in testing in 2010, other than in truth; many teams have been using this solution in private of their wind tunnels test to show surface aerodynamic flows, following many teams publically use flow-vis aero paint in 2011 pre-season test at Jerez.

The motorsport pundit/commentator GARY ANDERSON explains to Autosport, some of the specifics of aero paint: “Flo-vis is used by all the teams to try to understand the airflow on the surface of the body of an F1 car.

“The problem is that it can also lead you astray. It is made up from a liquid mixed with luminous particles. This is painted onto the surface and when the car leaves the pits this will be washed across the bodywork b by the airflow. The liquid will then dry off and leave flow lines. He said during the third day of Bahrain testing.

“The problem is that if you have an airflow separation problem at high-speed you will never find it as the liquid dries before it can be influenced by the high speed flow.

“Another trick is to fit up a simple windscreen washer system with very small tubes (1mm diameter) finishing on the surface of the body.

“Then when you get to the higher speed section just switch on the pump. The fluid will wash onto the surface and you will get the results at high speed only.”

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