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Experiments in Fluids

, 58:16 | Cite as

Three-dimensional microscopic light field particle image velocimetry

  • Tadd T. Truscott
  • Jesse Belden
  • Rui Ni
  • Jonathon Pendlebury
  • Bryce McEwen
Research Article

Abstract

A microscopic particle image velocimetry (\(\mu \text {PIV}\)) technique is developed based on light field microscopy and is applied to flow through a microchannel containing a backward-facing step. The only hardware difference from a conventional \(\mu\)PIV setup is the placement of a microlens array at the intermediate image plane of the microscope. The method combines this optical hardware alteration with post-capture computation to enable 3D reconstruction of particle fields. From these particle fields, we measure three-component velocity fields, but find that accurate velocity measurements are limited to the two in-plane components at discrete depths through the volume (i.e., 2C-3D). Results are compared with a computational fluid dynamics simulation.

Keywords

Particle Image Velocimetry Point Spread Function Light Field Particle Tracking Velocimetry Microlens Array 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This material is based upon work supported by the National Science Foundation under Grant No. 1126862. JB gratefully acknowledges funding from the Office of Naval Research under task number N0001413WX20545 monitored by program officer Dr. Ronald Joslin (ONR Code 333).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Tadd T. Truscott
    • 1
  • Jesse Belden
    • 2
  • Rui Ni
    • 3
  • Jonathon Pendlebury
    • 4
  • Bryce McEwen
    • 4
  1. 1.Utah State UniversityLoganUSA
  2. 2.Naval Undersea Warfare CenterNewportUSA
  3. 3.Pennsylvania State UniversityState CollegeUSA
  4. 4.Brigham Young UniversityProvoUSA

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