To create this image, I added drops of dyed saltwater to tank of deionized water. The drops of saltwater slid down an acrylic ramp and mixed with the deionized water, forming swirled patterns of yellow dye. Multiple fluid mechanic concepts play a role in this image – surface tension, density gradients, and gravity to name a few.
Density and Mixing – Luke Freyhof
Categories
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
5 Comments. Leave new
I like the framing of this shot. The sharp angles of the acrylic and the squares in the background are a cool contrast to the soft plumes and turbulence under the surface
The gold tones in the saltwater are aesthetically pleasing, I wonder if the refraction/reflection from this color may be causing the mismatch in focus above and below the water line.
I really like the effect of the Schlieren, and I like that you were able to capture that and include it in you photo. I feel like if you change the lighting in post somehow, or upped the contrast, the effect might be more visible.
This is a really visually appealing image. Did you consider or try using any other dye colors before settling on the yellow?
I think it is really cool you were able to capture Shlieren. I am curious what main forces are at play when the salt water sticks to the acrylic.