Blue food dye on the surface of whole milk to help visualize the flow patterns on the surface because of the change in surface tension when a drop of soap is added.
Khalil Sidani – Get Wet 2026
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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
- Particles 1- Physics: Flow and Light
- Particles 2: Aerosols
- Particles 3: In Water
- Particles 4 -Dilute Particle Techniques
- Art and Science
- TOC and Zotpress test
- Photons, Wavelength and Color
3 Comments. Leave new
I really like the pattern the dye created. It is very interesting how most of the dye is towards the top of the photo. It is also really cool how there are some sort of filaments in the dye which makes it seem like it is going in a certain direction.
I am fascinated by the some of the food dye being in focus, and other parts not being as much in focus. It draws the attention into the center of the image from the viewer’s perspective – well done!
The blue diffusing into those thin streaks really shows the motion well!