TY - JOUR
T1 - Three-dimensional microscopic light field particle image velocimetry
AU - Truscott, Tadd T.
AU - Belden, Jesse
AU - Ni, Rui
AU - Pendlebury, Jonathon
AU - McEwen, Bryce
N1 - Funding Information:
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).
Publisher Copyright:
© 2017, Springer-Verlag Berlin Heidelberg.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - A microscopic particle image velocimetry (μPIV) 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 μPIV 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.
AB - A microscopic particle image velocimetry (μPIV) 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 μPIV 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.
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U2 - 10.1007/s00348-016-2297-3
DO - 10.1007/s00348-016-2297-3
M3 - Article
AN - SCOPUS:85012142797
SN - 0723-4864
VL - 58
JO - Experiments in Fluids
JF - Experiments in Fluids
IS - 3
M1 - 16
ER -