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Old 01-26-2015, 06:44 PM   #11 (permalink)
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video series

Welcome!
All smiles here!
The idea and the work is great.These images speak volumes.I can't think of a better way to share.
If I could get it into public school curriculum I would.Consumers would have a very concrete conception of what was happening around their vehicle as they drove.The higher Reynolds number stuff really tells the tale.(tail?)
Can't thank you enough,and look forward to future releases.

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Old 01-26-2015, 08:15 PM   #12 (permalink)
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HAHAHAHAHA me and my girl have a at home movie night where we both take turns picking a movie to watch for a "free" at home date night she is going to get a shock from this!!
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Old 01-26-2015, 09:46 PM   #13 (permalink)
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Quote:
Originally Posted by dirtydave View Post
HAHAHAHAHA me and my girl have a at home movie night where we both take turns picking a movie to watch for a "free" at home date night she is going to get a shock from this!!
She must really love you, man.
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Old 01-26-2015, 10:07 PM   #14 (permalink)
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This is why we take turns! lol
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Old 01-27-2015, 10:46 AM   #15 (permalink)
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I found this 1/10 scale Civic hatchback.
1/10 scale is too large to fit in the tunnel, correct ?
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Old 02-02-2015, 02:39 PM   #16 (permalink)
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Here's another one he did with the solar car in a wind tunnel.




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Old 02-02-2015, 03:59 PM   #17 (permalink)
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I would definitely love to see how some of the more popular cars that are generally used for hyper milling stack up aerodynamically in wind tunnel testing. Very awesome videos!
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Old 02-07-2015, 07:18 AM   #18 (permalink)
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Thank you,

For all those of us without aerospace degrees and without access to wind tunnels and water channels this gives us the chance to vicariously be there and learn from your experience. Thank you greatly.

Subscribed so as to get any future updates,

benphyr.

p.s. I am down the road in Hamilton. Are you interested in visitors to your "shows" or testing or garage from ecomodders in the neighbourhood?
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Old 02-07-2015, 07:15 PM   #19 (permalink)
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I enjoyed watching and suggest the following:

1. Reduce the length of each video by 25%. Spend less time on the intro and the exit from each idea, and instead just present the idea. In the first video, too much time was spent revisiting which cars are being tested, and which books were used to gleam the info. That sort of material can be added in the notes to the video instead of occupying the valuable meat of the info.

2. Develop an elementary intro to aerodynamics that discusses things like why attached flow is desirable, and how various high and low pressures develop and what those forces do to the vehicle.

3. Break the ideas up into smaller segments. This will help to reduce the intro video length. An independent video can explain how hydrogen bubbles are produced for those that are curious, but hydrogen bubbles don't have anything directly to do with aerodynamics.

I think the mistake most (uniformed) people make when conceptualizing aerodynamic shape is that they think in terms of cutting through the air. People already know through experience that a sharp blade cuts through objects better than a blunt object, and so their focus is drawn to separating the air at the front of an object while neglecting the other aspect of bringing the fluid back together again. This focused attention at the leading edge is likely why roof racks appear to the public to be designed with aerodynamics in mind, while the trailing transition is neglected.

I'm curious if very small aerodynamic changes can be observed and/or measured at small scale using your equipment. On Ecomodder, people add moon discs or wheel spats, and it would be neat to visualize the change that makes, or have data to quantify the drag reduction (or even increase).
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Old 02-07-2015, 07:45 PM   #20 (permalink)
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I'm also interested in a segment that covers belly pans. It's kind of cool being able to see the slowed down flow of bubbles underneath the car when you show the pulses of bubbles.

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