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Old Dec 23, 2010, 11:06 PM
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Victoria, BC, Canada
Joined Apr 2001
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Quote:
Originally Posted by springer View Post
GYI, Here's the site where the algorithyms are that are used in the sim program: http://www.mh-aerotools.de/airfoils/javafoil.htm Hepperle does show some validation with real wind tunnel data on an existing airfoil and Xfoil. interesting stuff. Still don't know how to read a polar, but I'm looking.....
Martin identifies the key limitation:
Quote:
LimitationsAs said above, JavaFoil is a relatively simple program, with some limitations. As with all engineering computer codes, it is up to the user to judge and to decide how far he wants to trust a program. Because JavaFoil does not model laminar separation bubbles and flow separation, the results will be incorrect if either of these occur.
The whole point of the step is to cause the flow to separate so the results of the simulation are not reliable.

Rick.
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