Results 91 to 100 of about 12,590,314 (158)

Comparative analysis of counter-current and co-current downer reactors using particle image velocimetry and computational particle-fluid dynamics

open access: yesChemical Engineering Journal Advances
We investigated the hydrodynamics in co- and counter-current downer operations using particle image velocimetry (PIV) and computational particle fluid dynamics simulations (CPFD).
Talal A. Aldugman   +9 more
doaj   +1 more source

Comparison of Simple and Conditional Averaging Methodology Based on Results of the HART II Wind Tunnel Test [PDF]

open access: yes, 2007
Based on test results of the Higher Harmonic Control Aeroacoustic Rotor Test (HART II), performed in the German/Dutch wind tunnel (DNW) in 2001 the conditional averaging methodology is shown to be mandatory to proper average essentially periodic data ...
van der Wall, Berend G.   +1 more
core  

Measuring River Surface Velocity Using UAS‐Borne Doppler Radar

open access: yesWater Resources Research
Using Unoccupied Aerial Systems (UAS) equipped with optical RGB cameras and Doppler radar, surface velocity can be efficiently measured at high spatial resolution.
Zhen Zhou   +19 more
doaj   +1 more source

Numerical Simulation Study on the Feasibility of Cyclone PIV Tracer Particle Seeder in Microgravity

open access: yesEnergies
The Particle Image Velocimetry (PIV) Unit in the Combustion Science Experimental System (CSES) aboard the China Space Station (CSS) is designed for flow field measurements in microgravity combustion experiments.
Xianzhang Peng   +5 more
doaj   +1 more source

An experimental investigation of wind turbine wakes using Particle Image Velocimetry [PDF]

open access: yes, 1993
Determination of the aerodynamic performance of horizontal-axis wind turbines (HAWT) is complicated by problems such as wake deformation effects and free stream turbulence.
Anderson, C.G., Whale, J.
core  

4th International symposium on particle image velocimetry CD-ROM proceedings

open access: yes, 2001
This CD ROM contains more than 180 papers presented at the 4th International Symposium on Particle Image Velocimetry (PIV'01), held in Goettingen, Germany, September 17 to 19, 2001. The PIV'01 Symposium has been organized by the Institute of Aerodynamics
DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Goettingen (Germany). Inst. fuer Aerodynamik und Stroemungstechnik   +1 more
core  

Distribution of Particle Image Velocimetry (PIV) Errors in a Planar Jet

open access: yes, 2018
Particle Image Velocimetry (PIV) is an optical fluid measurement technique used to obtain velocity measurements. Two PIV systems were used to capture data simultaneously and measurement error for the MS PIV system is calculated. An investigation of error distribution is performed to determine when uncertainty estimations fail for the CS PIV-UQ method ...
openaire   +2 more sources

Optical instrumentation for fluid flow in gas turbines [PDF]

open access: yes
Both a novel shearing interferometer and the first demonstration of particle image velocimetry (PIV) to the stator-rotor gap of a spinning turbine cascade are presented.
Burnett, Mark
core  

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