Grade auf einer komplett themenfremden Seite gelesen und irgendwie doch für dieses Thema passend befunden:
http://www.speedhunters.com/20…t-view-into-aerodynamics/
Da oft von Speedkite-Einsteigern und Neuentwicklern immer die gleichen Fragen an "erfahrenere" Kitebauer gestellt werden, diese eigentlich nie zufriedenstellend für die Einstieger beantwortet werden können und dadurch für diese der Eindruck entstehen mag, das die Erfahreneren Ihr Know Hof nicht teilen möchten. Da kommen dann Fragen wie, wenn ich das so und so mache, klappt das dann, oder muss ich das eher so machen, usw usw... Die Standard-Antwort darauf ist wohl fast immer: Musst du ausprobieren, nur Versuch macht kluch"
Dieses im Hinterkopf einfach mal den folgenden, wenn auch englischsprachigen Textauszug lesen, dabei das Wort "Car" mit Kite gleichsetzen, und die Parallelen ziehen:
"I would say the most misunderstood thing about aero for the general public is that people think there is one perfect shape and we [aerodynamicists] know what it is, so they are always asking you to tell them. The truth is, there is no good solution that isn’t a custom one and even defining what is better is circumstantial. We call the details of the car the packaging and packaging is the name of our game. Arranging things to make the aero work and making the aero work with the way things are arranged. Bigger is not always better and testing is king. I think that the real questions to ask are: why did this work, why didn’t this work like I expected and what is the next thing to try?
Let me explain about that a bit more. Initially aerodynamics seems so intuitive. If you put a flat plate inclined to the wind it makes downforce. So all you need to know is what angle makes the most downforce, the least drag or whatever. So in that sense a diffuser is intuitive. But it gets complicated when you have a suspension part protruding into the air stream, a dirty rolling tire wake, air coming from whatever of a million things in the front of the car or the car in front of you, hot air off the exhaust and a five mph cross wind at two degrees of yaw or half a degree pitch under braking. All this stuff interacts. It’s about how all the parts work together as a system so unless you understand all the parts you can get it all wrong.
The same design will not work on another car and that constantly surprises you. Everything in front has a huge effect on the rear and vice versa. What it boils down to is that aero is simple until you get to the interactions, then it’s far too complex for a human brain to work out. That is why people spend tens of millions on supercomputers and wind tunnels. Your tools are everything; you need repeatable and accurate test methods. Your processes are critical because the tools are worthless if you are not religious about how you use them. After that you need to apply what you have learned to guide testing. That’s the core of what we do really; there are infinite shapes to test, but you need to get the right one, or at least get it more right before the other teams. It boils down to experience, discipline and your gut."
