Lagrangian Particle Trajectories in Elastic Turbulence, 10 Million Traces

Eldad Afik's experimental database contains approximately 10 million 3D Lagrangian particle trajectories from passive tracers in elastic turbulence, generated in a curvilinear microfluidic channel. The dataset was created using a direct three-dimensional Lagrangian particle tracking technique and serves as a laboratory for non-linear and out-of-equilibrium classical physics. It was made available to serve as a reference for new theoretical, numerical, and experimental results.

Use Cases

• Studying pair dispersion in a chaotic flow based on the Lagrangian trajectories.
• Testing theoretical frameworks for elastic turbulence based on the 3D particle tracking data.
• Comparing numerical simulations of microfluidic flows with experimental results based on the provided trajectories.
• Investigating the breakdown of the smoothness assumption in elastic turbulence at small scales based on the dataset's findings.

Strengths

• Approximately 10 million particle trajectories provide a substantial experimental record.
• Data represents direct three-dimensional Lagrangian tracking, addressing a previous limitation to 2D measurements.
• Dataset is accompanied by a Jupyter notebook example for data access.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Eldad Afik

Collection Method

Experimental data collected via a direct three-dimensional Lagrangian particle tracking technique in a curvilinear microfluidic tube.