Shape oscillation of a levitated drop in an acoustic field

Abstract: "A 'star drop' refers to the patterns created when a drop, flattened by some force, is excited into shape mode oscillations. These patterns are perhaps best understood as the two dimensional analog to the more common three dimensional shape mode oscillations. In this fluid dynamics video an ultrasonic standing wave was used to levitate a liquid drop. The drop was then flattened into a disk by increasing the field strength. This flattened drop was then excited to create star drop patterns by exciting the drop at its resonance frequency. Different oscillatory modes were induced by y varying the drop radius, fluid properties, and frequency at which the field strength was modulated."

[distribuidoradecontenido]

Lo más genial es que tu compartes el paper original con su url, abstract y todo
Gracias !!!

[ronron]

how about floating liquid parifin with heat lamps then instant cool with nitrogen to get three d models for study and jewelry casting?

[Mr.Not_Sure]

I was observing the same effect in kitchen, except water drop was levitating by Leidenfrost effect. What was needed:
1. An electric stove,
2. Concave surface of the stove, so the drop is located in center,
3. Just after turning off, the stove is still hot but slowly cooling,
4. Water drop about 3-4 mm in diameter.
I could observe 6th maybe 7th harmonic.
No ultrasound field, no modulation. Only steam and hot surface.

[OmoiSenpai]

That water droplet created the big dipper star conselation at the lower left side at the end

[excel]

This is what it looked like when Naruto was training with a water balloon for the Rasengan.

[JEAthePrince]

This is what stars look like through telescopes

[zain]

This reminds me of the water experiment and the ride experiment, as well as the age old Hawaiian ho’oponopono prayer. They all deal with the effects of sound and frequencies on matter.

[benjimac]

Now what if we amplify this on a larger scale and somehow enclose the sound and a vessel inside the water, also finding the correct frequency to tune the water to your will. I honestly think this is what some of the UAP’s are🤷🏾‍♂️

[hotsauceislethal]

So is this how UFOs are able to levitate?

[logiclock]

what is the frequency of the fundamental?

[gyrod]

2:40 was that droplet throwing planets or comets? Is that how we got the asteroid belt? When Saturn and the Sun had their ultrasonic battle.

[alanroberts]

Please do a video of different non-Newtonian and ferrofluids

[williamlewis]

... vibrating the drop at various sustained frequencies and carefully chosen amplitudes ?

[xstl]

what are the specific frequencies? sound would help, even if translated into an audible range

[DemelzaKooij]

Can you add the sounds that shape the drop please?

[lalanirhythmchanter]

Ok so resonant frequency per drop, then 2nd 3rd harmonic etc, so every drop will have its own harmonics tone/frequency ?

[miceskin]

What about 6 reflectors and transducers at orthogonal angles to each other?

[babyfacek]

When you change the field strength does the ultrasonic remain a wave/ripple or does it start to spin? Is the ultrasonic you’re using producing low and high ripples?

[luis.vuitton]

If this was a drop of water & vibration makes it float, I wonder since Humans being made up of 70% water could we reach a level of vibration that we could levitate?

[EmilDragonul]

You have this video with the real sound on IT?