TY - JOUR
T1 - Second order and transverse flow visualization through three-dimensional particle image velocimetry in millimetric ducts
AU - Harte, N. C.
AU - Obrist, D.
AU - Versluis, M.
AU - Jebbink, E. Groot
AU - Caversaccio, M.
AU - Wimmer, W.
AU - Lajoinie, G.
N1 - Publisher Copyright:
© 2024 The Author(s)
PY - 2024/8/20
Y1 - 2024/8/20
N2 - Despite recent advances in 3D particle image velocimetry (PIV), challenges remain in measuring small-scale 3D flows, in particular flows with large dynamic range. This study presents a scanning 3D-PIV system tailored for oscillatory flows, capable of resolving transverse flows less than a percent of the axial flow amplitude. The system was applied to visualize transverse flows in millimetric straight, toroidal, and twisted ducts. Two PIV analysis techniques, stroboscopic and semi-Lagrangian PIV, enable the quantification of net motion as well as time-resolved axial and transverse velocities. The experimental results closely align with computational fluid dynamics (CFD) simulations performed in a digitized representation of the experimental model. The proposed method allows the examination of periodic flows in systems down to microscopic scale and is particularly well-suited for applications that cannot be scaled up due to their complex, multi-physics nature.
AB - Despite recent advances in 3D particle image velocimetry (PIV), challenges remain in measuring small-scale 3D flows, in particular flows with large dynamic range. This study presents a scanning 3D-PIV system tailored for oscillatory flows, capable of resolving transverse flows less than a percent of the axial flow amplitude. The system was applied to visualize transverse flows in millimetric straight, toroidal, and twisted ducts. Two PIV analysis techniques, stroboscopic and semi-Lagrangian PIV, enable the quantification of net motion as well as time-resolved axial and transverse velocities. The experimental results closely align with computational fluid dynamics (CFD) simulations performed in a digitized representation of the experimental model. The proposed method allows the examination of periodic flows in systems down to microscopic scale and is particularly well-suited for applications that cannot be scaled up due to their complex, multi-physics nature.
KW - UT-Hybrid-D
KW - Computational fluid dynamics (CFD)
KW - Dean vortices
KW - Low Reynolds number
KW - Microfluidics
KW - Scanning particle image velocimetry (PIV)
KW - Secondary flow
KW - Three-dimensional three-component (3D3C)
UR - http://www.scopus.com/inward/record.url?scp=85201633256&partnerID=8YFLogxK
U2 - 10.1016/j.expthermflusci.2024.111296
DO - 10.1016/j.expthermflusci.2024.111296
M3 - Article
AN - SCOPUS:85201633256
SN - 0894-1777
VL - 159
JO - Experimental thermal and fluid science
JF - Experimental thermal and fluid science
M1 - 111296
ER -