Would you bike a full CF saddle with dimpled surface?
10-02-07, 10:50 AM
#51
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Hell i would test it out for a while just to see how nice it might be. It's not totally fugly, close though, a few tweaks could make it look pretty slick.
10-02-07, 10:55 AM
#52
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next project is a full CF RD...maybe lighter than the lightweight RD....but we'll see. It takes forever for computerized work and calculation.
Last edited by brad06ag; 10-02-07 at 11:05 AM.
10-02-07, 11:21 AM
#53
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Everytime someone says dimples are useless in one particular application, some enlightened idiot brings up the golf ball argument. Saddles and golfballs are completely different in terms of aerodynamics. Golf balls have dimples to trip the laminar flow turbulent, this keeps the boundary layer attached longer, thus reducing pressure drag due to a reduced wake.
A seat, however, doesn't really see laminar flow, and on the top-side, dimples won't make one iota of difference as most of the time, you're sitting on the saddle thus negating any negligible effect they make have in the first place.
A seat, however, doesn't really see laminar flow, and on the top-side, dimples won't make one iota of difference as most of the time, you're sitting on the saddle thus negating any negligible effect they make have in the first place.
the original golfball dimples were straight lines made by the club face. Dimples do not make the ball fly farther, they make it more controlable
10-02-07, 11:35 AM
#54
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Dimples on a golf ball help you shape your shot, just like the stitching on a baseball effects the break of a pitch.
the original golfball dimples were straight lines made by the club face. Dimples do not make the ball fly farther, they make it more controlable
the original golfball dimples were straight lines made by the club face. Dimples do not make the ball fly farther, they make it more controlable
Here is a simple picture showing the moving back of the laminar to turbulent flow region
The airflow around a smooth ball breaks at the top and bottom, slowing down the ball. On a dimpled ball, it breaks farther back, producing less drag. The dimples also provide spin that shifts the backdraft down, creating negative pressure above the ball and generating lift.
The same affect does allow for some measure of control, but that is far from the primary purpose. Golf ball designers are now having to reverse design balls for the PGA that don't travel as far due to the dimples.
Last edited by brad06ag; 10-02-07 at 11:46 AM.
10-02-07, 11:51 AM
#56
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If you worry about the fluid dynamics of a golfball, you need a lot more practice.
Fluid: A state of matter, such as liquid or gas, in which the component particles (generally molecules) can move past one another. Fluids flow easily and conform to the shape of their containers.'
So yeah, I know what I'm talking about here.
10-02-07, 11:56 AM
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moving on. Sam, start cranking out those saddles!
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10-02-07, 12:37 PM
#58
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A dimpleess golf ball would be easier to control, but wouldn't fly as far.
Hence the Caeser Golf ball about to be marketed. No dimples, no hook, no slice, (but less distance).
https://golf.about.com/od/equipmentre...uip032807a.htm
10-02-07, 12:42 PM
#59
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I would buy a carbon toupe.... 
10-02-07, 02:19 PM
#61
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You obviously do not understand fluid dynamics.
Of course, neither do I. But I know if they get that thing down to 50g that is pretty damn sweet. As for aesthetics, I'll put on a heavy good looking seat when I'm not on the bike. (I actually think it looks pretty cool)
Last edited by Sesh; 10-02-07 at 02:25 PM.
10-02-07, 03:43 PM
#63
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Stanford huh? I can't wait to get back to your area around Xmas to get some riding in. I miss the eucalyptus and redwoods!
To answer your question, I probably would not buy one. I am curious about how they ride. Are they comfy for long rides? Do you feel "slippy" on them? I'd love to hear about your feedback...
To answer your question, I probably would not buy one. I am curious about how they ride. Are they comfy for long rides? Do you feel "slippy" on them? I'd love to hear about your feedback...
10-02-07, 05:11 PM
#64
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Next time, please don't take things so personal. This is merely a discussion, not a personal argument about who's dad could beat up who's dad (my dad would obviously win, he's 6'7", 265 and runs a 4.3 40!
)! I just don't want to be the guy that says, "No, that would never work!" without actually trying it. No one ever did anything great that way.
10-02-07, 05:26 PM
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what other parts are you planning on making?
10-02-07, 08:34 PM
#68
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Hmmm, I've been thinking of doing the same thing, except mine will purposely be an ass-hatchet, I just want a super-narrow seat like the Kashimax Gold, except cooler looking.
What methods did you use to make the seat?
What methods did you use to make the seat?
10-02-07, 10:41 PM
#70
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Wow, I never said this was about you being wrong. I wasn't being a smart ass either. I honestly want to see proof that this wouldn't work. If we completely discount the idea that this is possible, or any idea is possible, where would we be? Remember, I said it would be a minute difference, if at all. Of course the top of the seat would not matter, but the bottom of the seat does see a marketable amount of airflow so the POSSIBILITY is there.
Next time, please don't take things so personal. This is merely a discussion, not a personal argument about who's dad could beat up who's dad (my dad would obviously win, he's 6'7", 265 and runs a 4.3 40!)! I just don't want to be the guy that says, "No, that would never work!" without actually trying it. No one ever did anything great that way.
Next time, please don't take things so personal. This is merely a discussion, not a personal argument about who's dad could beat up who's dad (my dad would obviously win, he's 6'7", 265 and runs a 4.3 40!
)! I just don't want to be the guy that says, "No, that would never work!" without actually trying it. No one ever did anything great that way.
