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Updated: Mar 18, 2026

Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence

Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence

Published on: June 24, 2016

Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence.

Brendan C Cole¹, Guy G Marcus¹, Shima Parsa¹

¹Department of Physics, Wesleyan University.

Journal of Visualized Experiments : Jove

|July 13, 2016

Summary

Researchers developed methods to track anisotropic particle motion in turbulent flows using 3D-printed shapes. This study measured particle trajectories and rotation rates in a low-Reynolds number flow, advancing fluid dynamics research.

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Last Updated: Mar 18, 2026

Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence

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Published on: June 24, 2016

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

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Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Published on: February 27, 2016

Area of Science:

Fluid Dynamics
Particle Image Velocimetry
Turbulence Research

Background:

Understanding the motion of anisotropic particles in turbulent flows is crucial for various scientific and engineering applications.
Previous studies often simplified particle shapes or flow conditions, limiting applicability to complex real-world scenarios.

Purpose of the Study:

To present novel experimental methods for measuring the rotational and translational motion of anisotropic particles in turbulent fluid flows.
To fabricate and characterize various anisotropic particle shapes using 3D printing technology for detailed motion analysis.

Main Methods:

Fabrication of anisotropic particles (crosses, jacks, triads, tetrads) using 3D printing and fluorescent dyeing.
Time-resolved 3D trajectory measurements of particle position and orientation using four synchronized cameras.
Analysis of particle motion in a turbulent flow generated by oscillating grids (Reynolds number Rλ = 91).

Main Results:

Successful production of approximately 10,000 fluorescently dyed anisotropic particles.
Acquisition of time-resolved data on particle orientation and solid-body rotation rates.
Demonstration that particles approximate ellipsoidal tracers in this low-Reynolds number flow regime.

Conclusions:

The developed experimental methods enable precise measurement of anisotropic particle dynamics in turbulent flows.
The study provides valuable data on particle trajectories and rotation rates, contributing to the understanding of particle-laden turbulence.