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aerodynamics of gliding
On Sat, 21 Mar 2009 16:01:33 -0700, The Real Doctor wrote:
On 21 Mar, 20:18, Martin Gregorie wrote: On Sat, 21 Mar 2009 20:01:23 +0000, Martin Gregorie wrote: On Sat, 21 Mar 2009 12:28:59 -0700, The Real Doctor wrote: Incidentally, if you don't have a copy of "An Album of Fluid Motion" by Milton Van Dyke, get it. You'll love it. Every gliding club should have one. Here's a link to animated visualizations of the flow past a wing:http://www.av8n.com/irro/- click the flag of your favored language to see the visualizations. I've never really liked that Joukowski transform stuff. The arbitrary definition of circulation worries me, and anyway no real wing behaves anything like that. It's a fair way of visualising the flow, roughly, but I prefer to jump straight into circulation theory and model my wings as vortices. You're way beyond me there. I can choose suitable, matched wing and tail sections for competition free flight models, which requires some understanding of Rn effects and the usual section performance diagrams and data. I also know a little about the use of turbulators and tip shapes. As I've ended up with decently performing and stable, flyable models I must be doing something right. However, thats as far as I go. -- martin@ | Martin Gregorie gregorie. | Essex, UK org | |
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