Home › Cell Biology › Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films
Cell Biology JoVE (Open Access) Citable · DOI

Film Control to Study Contributions of Waves to Droplet Impact Dynamics on Thin Flowing Liquid Films

DOI: 10.3791/57865-v
What you'll learn
  • ✓ Set up experimental rig to control flowing liquid films
  • ✓ Calibrate spatial resolution and record high-speed video data
  • ✓ Analyze wave contributions to droplet impact dynamics
  • ✓ Interpret effects of film control on impact behavior
Protocol

A protocol to study the contributions of waves to droplet impact dynamics on flowing liquid films is presented.

Difficulty
advanced
Total time
~4–6 hours per experimental run (setup, calibration, recording, analysis)

Steps

1
Assemble experimental rig and flow system

Construct the droplet impact apparatus including the flowing liquid film substrate, droplet generation mechanism, and control systems. Verify all connections and fluid pathways are secure before operation.

▶ 00:32
2
Calibrate spatial resolution and configure video acquisition

Perform spatial resolution calibration using reference markers, set camera parameters for high-speed recording, and configure data acquisition software to synchronize imaging with flow control.

▶ 03:49
3
Record droplet impact data under controlled film conditions

Execute experimental runs with varying film control parameters, capturing high-speed video of droplet impacts on the flowing liquid film surface. Collect multiple replicates across condition sets.

▶ 05:23
4
Analyze wave effects on impact dynamics

Process recorded video to quantify wave amplitudes, droplet spreading, rebound behavior, and mass transfer as functions of film control settings. Compare results across experimental conditions to determine wave contributions.

▶ 06:41
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