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Fundamentals of digital particle image velocimetry
The measurement principle of digital particle image velocimetry (PIV) is described in terms of linear system theory. The conditions for PIV correlation analysis as a valid interrogation method areExpand
Universal outlier detection for PIV data
An adaptation of the original median test for the detection of spurious PIV data is proposed that normalizes the median residual with respect to a robust estimate of the local variation of theExpand
Fully developed turbulent pipe flow: a comparison between direct numerical simulation and experiment
Direct numerical simulations (DNS) and experiments are carried out to study fully developed turbulent pipe flow at Reynolds number Re c ≈ 7000 based on centreline velocity and pipe diameter. TheExpand
Efficient detection of spurious vectors in particle image velocimetry data
TLDR
A statistical model is introduced that describes the occurence of spurious vectors in PIV data. Expand
Momentum and scalar transport at the turbulent/non-turbulent interface of a jet
Conditionally sampled measurements with particle image velocimetry (PIV) of a turbulent round submerged liquid jet in a laboratory have been taken at Re = 2 × 103 between 60 and 100 nozzle diametersExpand
Theoretical analysis of the measurement precision in particle image velocimetry
Abstract An analytical expression for the error in the sub-pixel displacement is derived. The expression relates the error to the second- and fourth-order moments of the intensity probability densityExpand
The effect of a discrete window offset on the accuracy of cross-correlation analysis of digital PIV recordings
Abstract This paper describes how the accuracy for estimating the location of the displacement-correlation peak in (digital) particle image velocimetry (PIV) can be optimized by the use of a windowExpand
Turbulence transition in pipe flow
Pipe flow is a prominent example among the shear flows that undergo transition to turbulence without mediation by a linear instability of the laminar profile. Experiments on pipe flow, as well asExpand
Interfacial Layers Between Regions of Different Turbulence Intensity
Recent developments in the physics and modeling of interfacial layers between regions with different turbulent intensities are reviewed. The flow dynamics across these layers governs exchanges ofExpand
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