Timeline for Any research on Veritasium's hydrodynamic levitation?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Dec 17, 2017 at 8:37 | comment | added | VL Srinivas | Hey, I found some literature regarding this. They call it 'Fluid Juggling'. It was presented at 66th Annual Meeting of the Fluid Dynamics Division of the American Physical Society. here are the links, arxiv.org/abs/1310.2925 youtube.com/watch?v=p9_aUQDGDbU researchgate.net/publication/257592629_Fluid_juggling | |
| Nov 27, 2017 at 13:43 | comment | added | VL Srinivas | I tried searching for some but couldn't find any. If you come across any of that kind, kindly post it in the comments. | |
| Nov 27, 2017 at 13:33 | comment | added | Mauricio | Yeah, the problem is that it gets too descriptive and from principles you cannot get very predictive. Do you know any papers with similar experiments? | |
| Nov 27, 2017 at 13:30 | comment | added | VL Srinivas | Magnus force is a phenomenon and Bernoulli's principle is merely a scheme to calculate the total amount of pressure; it is just a way to get the approximate amount of pressure, velocity trade-offs. Moreover, Bernoulli's theorem is only valid for incompressible, inviscid and irrorational flows across a streamline. In this case, the entire lateral force to keep it in contact with the liquid jet is provided by the liquid rotated across the ball as a result of Magnus effect. Forget about the air, think about a rotating ball or cylinder in a fluid, it experiences Magnus force. | |
| Nov 26, 2017 at 11:43 | comment | added | Mauricio | Magnus force doesn't seem right. Do yo know an example of Magnus force between two fluids? My problem with Magnus effect is that the ball is at rest with respect to air. | |
| Nov 25, 2017 at 6:47 | comment | added | VL Srinivas | Well, in a boundary layer, due to no-slip condition, fluid adheres to the wall. and viscosity between the layers of fluid tend to slow down the further layers nearby due to viscous shearing thus a boundary layer forms. Here, by friction, I mean the no-slip condition at the surface. | |
| Nov 24, 2017 at 12:20 | review | Late answers | |||
| Nov 24, 2017 at 12:38 | |||||
| Nov 24, 2017 at 12:05 | review | First posts | |||
| Nov 24, 2017 at 12:56 | |||||
| Nov 24, 2017 at 12:04 | history | answered | VL Srinivas | CC BY-SA 3.0 |