02-06-2011, 08:24 AM
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#171 (permalink)
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The Following 3 Users Say Thank You to NeilBlanchard For This Useful Post:
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02-06-2011, 09:14 AM
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#172 (permalink)
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Batman Junior
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That's cool, Neil.  |
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02-08-2011, 03:32 PM
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#173 (permalink)
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Master EcoModder
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02-08-2011, 06:03 PM
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#174 (permalink)
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jaw is on ground!
Neil,I'm dumbstruck!
What your doing would allow a complete 3-D analysis for anyone interested in mimic'ing the Dolphin.Or any like analyzed vehicle.Truly amazing tool!
You really begin to get a first-order-reality handle on AUTOCAD/CAM potential.
WowWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW!  |
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The Following User Says Thank You to aerohead For This Useful Post:
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02-08-2011, 07:30 PM
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#175 (permalink)
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EV OR DIESEL
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I think this also means that I will be able to print them on a reprap or the larger version I am working on now. For use in scale Physical testing.
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02-09-2011, 10:45 AM
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#176 (permalink)
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Quote:
Originally Posted by dremd
I think this also means that I will be able to print them on a reprap or the larger version I am working on now. For use in scale Physical testing.
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I would love to build a wind tunnel for scale model testing. I've read that the smaller the model the higher the wind speed must be (for comparable Re) which doesn't compute on some level... |
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02-09-2011, 11:17 AM
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#177 (permalink)
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Master EcoModder
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Possible CFD with SketchUp models!
My son tells me that there is a pre-alpha version of a CFD program related to a Half Life 2 plugin, called Garry's Mod is being developed. The key thing that makes this very interesting, is that it will be able to convert SketchUp models and run them in a 3D wind tunnel!
I'm hoping to hear more about the development of this program, and maybe ask to be a beta tester! If anybody else has heard about this, or knows more about it -- I'm all ears!
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02-09-2011, 11:56 AM
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#178 (permalink)
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EcoModding Apprentice
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Re Comuting
Quote:
Originally Posted by KamperBob
I would love to build a wind tunnel for scale model testing. I've read that the smaller the model the higher the wind speed must be (for comparable Re) which doesn't compute on some level...
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Re is length times speed, so the calculation is pretty simple to compensate for reduced size. Since the model does not have as much time to mess with the air, it has to try harder. |
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02-09-2011, 12:29 PM
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#179 (permalink)
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Recreation Engineer
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Quote:
Originally Posted by Bicycle Bob
Re is length times speed, so the calculation is pretty simple to compensate for reduced size. Since the model does not have as much time to mess with the air, it has to try harder.
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Thanks, Bob. When Orville and Wilbur developed the aerodynamics of flight they used winglets an order of magnitude smaller. Did their wind tunnel generate an order of magnitude more speed to compensate, or was Re matching not necessary between scale models and real world?
Last edited by KamperBob; 02-09-2011 at 12:31 PM..
Reason: typo
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02-09-2011, 02:54 PM
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#180 (permalink)
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EcoModding Apprentice
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The Wright Bros' experiments were more accurate than those of previous experimenters, but still quite approximate. That is one reason that the rounded leading edge came a bit later.
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