Are there public resources on the aerodynamics of ring shaped objects similar to the NOTES? Closest thing I could find was frisbees but I’m unsure whether the difference in shapes makes the maths different.
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I’m no physicist, my father @GeeTwo is though, but from playing with the note from the kit yesterday, at least when throwing them like a flying disc (Frisbee) or flying ring (Aerobie) they behaved fairly similarly apart from requiring more force and being less accurate, likely due to increased drag from the large horizontal cross-section. I was able to use most of the same techniques I’d learned previously in Ultimate (and from the 2013 Ultimate Ascent FRC game) to get approximately the same result, including increasing the angle of the note when throwing to better target a post (ie the mic).
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Same. They seem to have a bit of a range limit; the best way to toss them for range is like a frisbee, and other tossing methods are wobbly to say the least.
They are more dense and heavy than a frisbee, they also don’t create much lift because of the lack of an air pocket and it being so thick.
The other downside of more force is you need to apply the force in a smooth way (Dont snap your wrist) or the note will bend or deform at the contact point. A frisbee more or less keeps it shape through the wheel compression or when you snap to release it. This thing bends much more. The 2013 frisbees didn’t give much.
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To clarify: I’m looking for the equations for the forces acting on the game piece to calculate trajectories in advance.
I’m not an expert and haven’t used CFD software like this before. However their goal is to be able to test various models for stuff like turbulence
I wouldn’t know enough to know how to set it up right, but AirShaper was going to be at least 50 GBP to run one simulation.
If you’re looking to use aerodynamics or whatever to program your bot to always hit the speaker, I would reccomend away from that. Fluids simulations might be useful for estimating what ranges you can hit the target from for strategy and what power/spin your shooter will need, but that’s probably about the limit of it.
If you’re looking to tune your shooter to hit a target, you’d be better off running several experiments on that shooter, adjusting angle and flywheel speed, and then interpolating to get an emperical model you can invert to get your targeting system.
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While I appreciate the fair warning, this isn’t my first rodeo. If I won’t be able to get a good theoretical model, then fine. But ideally I’d want to be able to do things that would be possible only with one.
I think you’d have to build the theoretical model. The likelihood of finding a pre-existing Gopher 14 inch outside diameter Foam Rainbow Ring Aerodynamics study seems like a stretch. Why would someone have done an analysis like that of this object before this moment?
Im also curious what you think you need the model for that will make much a real world practical difference. There’s a lot of random chaos no model can accurately handle. Is the ceiling AC on, is it warm or cold, is your velocity out of the shooter a constant, is the shape of the Note a constant (hahahahaha no). There’s many variables that are specific to this that CFD softwares arent built to capture.
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Heh. I’ve mentioned before on this forum about an incident at one of the regionals where someone turned some number of Big A__ Fans to full power without warning. Cubes moved themselves. Notes? Well, they might have some issues…
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Notes flew quite true in Cranberry Alarm’s RI3D demo video from today.
Watching a second time, they appear to fly straight, but if you watch closely they don’t hit the back wall in a consistent spot. So close/medium range seems likely to be doable, but longer range will require more testing to evaluate viability.
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