Replication Data for: Simultaneous free-surface profilometry and subsurface velocimetry with fringe projection and PIV

Version 1.1
Semati, Ali; Shankaran, Adharsh; Smeltzer, Benjamin; Æsøy, Eirik; Hearst, R. Jason; Ellingsen, Simen Ådnøy, 2026, "Replication Data for: Simultaneous free-surface profilometry and subsurface velocimetry with fringe projection and PIV", https://doi.org/10.18710/MWEHEM, DataverseNO, V1
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Description
This dataset contains images and results from experiments on the simultaneous measurement of water surface topography and subsurface flow fields. Surface elevation was captured using fringe projection profilometry (FPP), and the velocity field was measured using particle image velocimetry (PIV). Fluorescein disodium salt was added to the water to enhance the contrast of the projected fringe pattern. To validate the surface measurements, simultaneous FPP and point laser-induced fluorescence (LIF) measurements of surface elevation were conducted, and the corresponding results from both techniques are included in the dataset. In addition, the dataset contains raw profilometry images from three wave-generation experiments conducted at fluorescein concentrations of 4, 12, and 25 mg/L, as well as images of vortex-wave interactions downstream of a cylinder. Processed surface elevation and velocity field data from vortex shedding-wave interaction experiments in the cylinder wake are also provided. The raw FPP images, acquired at varying fluorescein concentrations, together with the point-LIF validation data, provide a benchmark for evaluating FPP processing code and investigating the effect of surface opacity on reconstruction accuracy. (2026-06-03)
Subject Engineering; Physics
Keyword fringe projection profilometry, free surface, particle image velocimetry, PIV, fluorescein, surface topography, wave measurement
Related Publication Is Supplement To: Semati, A., Shankaran, A., Smeltzer, B.K. et al. Simultaneous free-surface profilometry and subsurface velocimetry with fringe projection and PIV. Exp Fluids 67, 120 (2026).doi: 10.1007/s00348-026-04242-x
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0_README.txt
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AttenuationLength.nc
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FPP_validation.nc
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imageSet_C04_Run1.nc
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imageSet_C10_vortexWaves.nc
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ProfilometryCalibration.zip
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vortexShedding_noWaves.nc
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vortexShedding_withWaves.nc
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