Red Bull preparing its model for wind-tunnel testing скачать в хорошем качестве

Red Bull preparing its model for wind-tunnel testing

Red Bull preparing its older model for wind-tunnel testing. "Team is now using 60% models, for accurate results, the frontal area of the model should be no more than 5% of the cross-sectional area of the tunnel's working section, and ideally slightly less (frontal area of F1 car is around 1.5 m2, so a 60% model would have just over 0.5m2 implying that the tunnel area needs to be around 10 m2). Most of the bodywork is made by rapid prototyping techniques, particularly stereolitography. Secret of good wind-tunnel model is to get as close to a replica of the real ting as is physically possible. This goes as far as blowing air through the exhaust pipes to give the same momentum flux ratio as with the real car. It is easy to imagine that the technology of wind-tunnel testing is now relatively mature and unchanging, but nothing could be further from the truth. Techniques are constantly evolving and perhaps nowhere more so than in the modelling of the wheels and tyres. Forces are measured by a balance which is today electronic and is normally mounted in the model's spine. The balance measures all six components of forces and moments. Each set of model's bodywork and suspension cost £160,000. 1% improvement in downforce obtained at normal efficiency will boost lap times by 0.1s. Teams probably achieve around 1% a month, nearly £1milliion per tenth of a second." Pat Symonds, F1 Racing More info: F1news.cz