Results 101 to 110 of about 34,049 (217)

Information Entropy Analysis of a PIV Image Based on Wavelet Decomposition and Reconstruction

Entropy
In particle image velocimetry (PIV) experiments, background noise inevitably exists in the particle images when a particle image is being captured or transmitted, which blurs the particle image, reduces the information entropy of the image, and finally ...
Zhiwu Ke, Wei Zheng, Xiaoyu Wang, Mei Lin   +3 more
doaj   +1 more source

Volumetric Calibration Refinement using masked back projection and image correlation superposition [PDF]

, 2018
This paper deals with a new, reconstruction based, approach of refining a volumetric calibration. The technique is based on a 2D cross-correlation between particle images on the sensor plane with a planar back projection from a tomographic reconstruction
Bruecker, C., Hess, D., Watz, B.
core  

Velocity measurement during evaporation of seeded, sessile drops on heated surfaces [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009), Christy, JRE, Romain, B, Sefiane, K   +3 more
core  

Applying colour-coded particle image velocimetry to the wake of a delta wing across a wide range of angles of attack

Journal of Fluid Science and Technology
The forces acting on a delta wing are predominantly influenced by local flow structures, specifically leading-edge vortices (LEVs). This study applies colour-coded particle image velocimetry (PIV) to quantify wake dynamics and lift generation for a delta
Shūji ŌTOMO, Kokoro OCHI, Hyun-Jin PARK, Yuji TASAKA, Yuichi MURAI   +4 more
doaj   +1 more source

Monocular 3D Micro-PIV System Using Computational Imaging

IEEE Photonics Journal
A three-dimensional (3D) particle image velocimetry (PIV) system typically consists of multiple cameras. However, micro-PIV systems for measuring microscale velocity fields lack sufficient space to accommodate them. In this work we propose an alternative
Taiyuange Lou, Chengxiang Guo, Tong Yang, Lei Yang, Hongbo Xie   +4 more
doaj   +1 more source

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

Chemical 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, Mengmeng Cui, Abdulrahman Alzailaie, Abdullah Alhareth, Kenneth Langley, Lujain Alfilfil, Khalid Almajnouni, Jorge Gascon, Sigurdur Thoroddsen, Pedro Castaño   +9 more
doaj   +1 more source

Measuring River Surface Velocity Using UAS‐Borne Doppler Radar

Water 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, Laura Riis‐Klinkvort, Emilie Ahrnkiel Jørgensen, Christine Lindenhoff, Monica Coppo Frías, Alexander Rietz Vesterhauge, Daniel Haugård Olesen, Makar Lavish, Alexey Dobrovolskiy, Alexey Kadek, Niksa Orlic, Tomislav Grubesa, Luka Drmić, Henrik Grosen, Sune Nielsen, Daniel Wennerberg, Viktor Fagerström, Jenny Axén, David Gustafsson, Peter Bauer‐Gottwein   +19 more
doaj   +1 more source

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

Energies
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, Huilong Zheng, Yu Fang, Xiaoyang Lan, Xiaofang Yang, Xiaowu Zhang   +5 more
doaj   +1 more source

Finding the location of the instantaneous center of rotation using a particle image velocimetry algorithm [PDF]

, 2017
Claessens, Tom
core   +2 more sources

Setup of Particle Image Velocimetry (PIV) in Hypersonic Flows

, 2008
moazzam458@gmail.com ...
openaire   +1 more source