Salah Ammar
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Flow Vis Guidebook
- Introduction to the Guidebook
- Overview 1: Phenomena. Why Does It Look Like That?
- Overview 2: Visualization Techniques
- Overview 3: Lighting
- Overview 4 - Photography A: Composition and Studio Workflow
- Overview 4 - Photography B: Cameras
- Overview 4 - Photography C: Lenses - Focal Length
- Overview 4 - Photography C: Lenses - Aperture and DOF
- Overview 4: Photography D: Exposure
- Overview 4 - Photography E - Resolution
- Overview 5 - Post-Processing
- Clouds 1: Names
- Clouds 2: Why Are There Clouds? Lift Mechanism 1: Instability
- Clouds 3: Skew - T and Instability
- Clouds 4: Clouds in Unstable Atmosphere
- Clouds 5: Lift Mechanism 2 - Orographics
- Clouds 6: Lift Mechanism 3 - Weather Systems
- Boundary Techniques - Introduction
- Dye Techniques 1 - Do Not Disturb
- Dye Techniques 2 - High Visibility
- Dye Techniques 3 - Light Emitting Fluids
- Refractive Index Techniques 1: Liquid Surfaces
- Refractive Index Techniques 2: Shadowgraphy and Schlieren
- Particle Physics: Flow and Light
- Dilute Particle Techniques - Under Construction
- Particles 2: Aerosols
- Particles 3: In Water - Under Construction
- Art and Science
- TOC and Zotpress test
- Photons, Wavelength and Color
26 Comments. Leave new
Interesting experiment, although when I read the description originally I thought “throwing an egg” meant you threw a whole, unbroken egg into the mixture. The layers were clear and the color of the egg made it so the audience could clearly see the three liquids interacting together.
I think the colors you used were great for seeing all of the different fluids. The reverse was an interesting touch.
This was a very enjoyable video. I like the crispness of the fluid layers.
I quite enjoyed this overall, though I wish the audio didn’t cut abruptly at the end. Since you already played it back in slow-mo after the video reverses, perhaps just stretch it out slightly longer?
Nice video! Maybe try using a tripod next time to increase stability.
The reversing was a good touch. Could observe the flow characteristics in greater detail that way.
I like the reverse in the video, but I would like more of the egg to be in focus than the front face of the glass.
I like how the denser liquid was clear so that the yellow looks like it is floating.
I really liked the video going in reverse halfway through the video. I think it gave the audience a chance to focus on the details of the flow seeing it a second time.
i liked the music and the experiment shows how boundary layers work which you did a great job demonstrating for us
I think the substance that was dropped could have been a different color because it was hard to understand what was being dropped.
How did you end up picking an egg to drop into the 2 different fluids instead of something else?
It is entertaining to be able to visualize the different densities of the three fluids. I enjoy the reversing of the video as well as the music choice. Why did you choose an egg?
Good experiment and demonstration of boundary layers. I think there were moments that were going to be really cool as still pictures zoomed in and from different angles.
Great job, I like your choice to play the video in reverse it gives a nice balance to the video as a whole. The lighting works well to illuminate the whole glass.
It was super great o see it in reverse. It’s interesting to see the egg fall in. I didn’t know it was heavier. The lighting is cool.
I really like the angle that you took this video. I also like how you reversed the video halfway through.
Its really interesting the mass that accumulates at the bottom of the container. The contrast in the colors makes it look good.
Good video but maybe try find an audio that is more suitable
The effects you used, slow motion and rewind, added a different technique which we havent seen yet and it also lets you see how the density of the two fluids react to one another in a different way.
This phenomenon reminds me of a toy I used to play with when I was little- sort of lavalamp-y. I think it would’ve been cool to show the reaction between the two liquids in slow motion instead of backward.
These are some cool phenomena you captured, I really like the Rayleigh-Taylor instability that can be observed.
I really enjoyed how you included the forward and reverse capture of the video. It really enhanced the visualization of the phenomena.
I like how at some point there were two peaks due to the water pushing on the oil.
I would recommend slowing down the video so we can see more movement in detail. But the use of reversing the video was very creative.
Well done experiment, really shows how boundary layers work well. Also, you did a good job of getting the actual fluid in focus throughout the entire video.