Results 121 to 130 of about 252,611 (302)
Particle Image Velocimetry in practice
, 2009 Experimental fluid mechanics has for a long time been used to visualize flow phenomenon. An early pioneer was Ludwig Prandtl who used aluminum particles in water flumes to describe the flow in a qualitative manner. In line with the rapid development of Computational Fluid Dynamics, CFD, the need for new validation tools has increased.
openaire +2 more sources
Refractive-index and density matching in concentrated particle suspensions: a review [PDF]
, 2018 Optical measurement techniques such as particle image velocimetry (PIV) and laser Doppler velocimetry (LDV) are now routinely used in experimental fluid mechanics to investigate pure fluids or dilute suspensions.
Ancey, Christophe +3 more
core
Global Hydroclimatic Controls on Multithread River Dynamics
AGU Advances, Volume 7, Issue 2, April 2026.Abstract Most large rivers in densely populated areas split flow into multiple channels, forming interconnected pathways called threads. Multithread rivers are sensitive to hydroclimatic changes, yet understanding their dynamics is challenging due to the lack of robust metrics to characterize their evolution.
Feifei Zhao +7 more
wiley +1 more source
Entropy, 2009 An experimental design is presented for an optical method of measuring spatial variations of flow irreversibilities in laminar viscous fluid motion. Pulsed laser measurements of fluid velocity with PIV (Particle Image Velocimetry) are post-processed to ...
Greg F. Naterer, Olusola B. Adeyinka
doaj +1 more source
Water Resources Research, Volume 62, Issue 4, April 2026.Abstract Understanding large wood (LW) dynamics on floodplains is important for closing wood budgets and predicting hazards associated with LW. We conducted 38 experiments in a fixed‐bed flume to examine how forest stand density (FSD), wood transport regime, and overbank flood magnitude affect floodplain LW retention.
J. T. Welsh +4 more
wiley +1 more source
Rotor-Obstacle Aerodynamic Interaction in Hovering Flight: An Experimental Survey [PDF]
, 2016 Despite the presence of a fair number of numerical and experimental works on the rotor-obstacle interaction, a systematic study of the aerodynamic phenomena involved is lacking.
Giuni, Michea +2 more
core
Peak-locking reduction for particle image velocimetry
, 2016 A parametric study of the factors contributing to peak-locking, a known bias error source in particle image velocimetry (PIV), is conducted using synthetic data that are processed with a state-of-the-art PIV algorithm. The investigated parameters include:
D. Michaelis, D. Neal, B. Wieneke
semanticscholar +1 more source
A Mechanism of Polymer Induced Drag Reduction in Turbulent Pipe [PDF]
, 2014 Polymer induced drag reduction in turbulent pipe flow was investigated using a non-intrusive laser based diagnostic technique, namely Particle Image Velocimetry (PIV).
Markides, CN, Zadrazil, I
core +1 more source
Applied Sciences, 2018 Optical flow analysis methods such as particle image velocimetry can only be performed in fluid systems or components with optical access. Many fluidic components, such as metallic tubes, do not typically feature optical accessibility.
Mark Schult +2 more
doaj +1 more source
An Optical Flow Algorithm with Automatic Parameter Adjustment for Fluid Velocimetry
Journal of Open Research SoftwareParticle image velocimetry is a standard non-intrusive experimental fluid mechanics technique that is used for determining fluid flow velocities quantitatively.
Gauresh Raj Jassal +2 more
doaj +1 more source