Results 91 to 100 of about 252,611 (302)

Turbulent snow transport and accumulation: New reduced‐order models and diagnostics

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Our new reduced‐order models of snow particle transport provide high‐fidelity calculations of snow accumulation in turbulent flows at significantly reduced computational costs. Additional accumulation diagnostics from the reduced‐order model predict complex patterns of particle concentration in turbulent boundary layers via coherent flow structures in ...
Nikolas O. Aksamit, Alex P. Encinas‐Bartos, Holt Hancock, Alexander Prokop   +3 more
wiley   +1 more source

Particle image velocimetry

, 1993
This document describes the development of a new flow visualization and measurement facility that incorporates a sheet of laser light and digital image enhancement and processing techniques. A simple bench test that was used to demonstrate the feasibility of such techniques is also described.
openaire   +3 more sources

Terrain Classification for Planetary Rovers Using Wireless In‐Wheel Sensor Modules and Machine Learning

Journal of Field Robotics, EarlyView.
ABSTRACT Safe and reliable mobility over different kinds of ground is important for planetary rovers on space missions. Since terrain changes might affect the mobility of the rover, energy consumption, and safety, detecting the type of ground in real‐time is vital.
Md Masrul Khan, Sultan Shaharea, Manseeb M. Mannaf, Shihab Ahemed, Fahim Islam Anik, Md Jarir Hossain, Helal An Nahiyan, Sourav Karmaker   +7 more
wiley   +1 more source

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

Magnetohydrodynamic velocity profile measurement for microelectromechanical systems micro-robot design

International Journal of Advanced Robotic Systems, 2019
The development of microelectromechanical systems based on magnetohydrodynamic for micro-robot applications requires precise control of the micro-flow behavior. The micro-flow channel design and its performance under the influence of the Lorentz force is
Wendy Flores-Fuentes, Mónica Valenzuela-Delgado, Danilo Cáceres-Hernández, Oleg Sergiyenko, Miguel E Bravo-Zanoguera, Julio C Rodríguez-Quiñonez, Daniel Hernández-Balbuena, Moisés Rivas-López   +7 more
doaj   +1 more source

Experimental study on solids circulation patterns and bubble behavior using particle imagevelocimetry combined with digital image analysis [PDF]

, 2008
The hydrodynamics, viz. the solids circulation patterns and\ud bubble behavior, of a freely bubbling gas-solid fluidized bed\ud has been investigated experimentally using Particle Image\ud Velocimetry (PIV) combined with Digital Image Analysis\ud (DIA ...
Kuipers, J.A.M., Laverman, J.A., Roghair, Ivo, Sint Annaland, M. van   +3 more
core   +1 more source

General Defocusing Particle Tracking: fundamentals and uncertainty assessment

, 2020
General Defocusing Particle Tracking (GDPT) is a single-camera, three-dimensional particle tracking method that determines the particle depth positions from the defocusing patterns of the corresponding particle images.
Barnkob, Rune, Rossi, Massimiliano
core   +1 more source

Probing turbulence intermittency via Auto-Regressive Moving-Average models [PDF]

, 2014
We suggest a new approach to probing intermittency corrections to the Kolmogorov law in turbulent flows based on the Auto-Regressive Moving-Average modeling of turbulent time series.
Daviaud, François, Dubrulle, Bérengère, Faranda, Davide, Maria, Flavio, Pons, Emanuele   +4 more
core   +3 more sources

Software to Support Remote Sensing of River Discharge Based on Critical Flow Theory

River Research and Applications, EarlyView.
ABSTRACT Water resource management requires accurate observations of streamflow but standard field methods for measuring river discharge (Q$$ Q $$) can be costly and hazardous for equipment and personnel. Remote sensing has become a viable alternative, but many image‐based techniques require field data for calibration, and depth and velocity can seldom
Carl J. Legleiter, Inhyeok Bae
wiley   +1 more source

Shear Band Characterization of Clayey Soils with Particle Image Velocimetry

Applied Sciences, 2020
Identifying the spatial distribution of deformation and shear band characteristics is important for accurately modeling soil behavior and ensuring the safety of nearby geotechnical structures.
Tae-Young Kwak, Ka-Hyun Park, Joonyoung Kim, Choong-Ki Chung, Sung-Ha Baek   +4 more
doaj   +1 more source