Results 41 to 50 of about 53,828 (183)

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

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

Microscopic Investigation of Vortex Breakdown in a Dividing T-Junction Flow [PDF]

, 2018
3D-printed microfluidic devices offer new ways to study fluid dynamics. We present the first clear visualization of vortex breakdown in a dividing T-junction flow. By individual control of the inflow and two outflows, we decouple the effects of swirl and
Chan, San To, Haward, Simon J., Shen, Amy Q.   +2 more
core   +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

Near-wall nanovelocimetry based on Total Internal Reflection Fluorescence with continuous tracking

, 2014
The goal of this work is to make progress in the domain of near-wall velocimetry. The technique we use is based on the tracking of nanoparticles in an evanescent field, close to a wall, a technique called TIRF (Total Internal Reflection Fluorescence ...
Bresson, Bruno, Chollet, Benjamin, D'eramo, Loïc, Lee, Choongyeop, Li, Zhenzhen, Monti, Fabrice, Tabeling, Patrick, Tran, Yvette, Yonger, Marc   +8 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

Some comments on particle image displacement velocimetry [PDF]

Laser speckle velocimetry (LSV) or particle image displacement velocimetry, is introduced. This technique provides the simultaneous visualization of the two-dimensional streamline pattern in unsteady flows as well as the quantification of the velocity ...
Lourenco, L. M.
core   +1 more source

Validation of the granular temperature prediction of the kinetic theory of granular flow by particle image velocimetry and discrete particle model [PDF]

, 2004
In order to give a detailed description of the hydrodynamics in large industrial scale fluidized beds, continuum models are required. Continuum models often use the kinetic theory of granular flow (KTGF) to provide closure equations for the internal ...
Bokkers, G.A., Deen, N.G., Dijkhuizen, W., Kuipers, J.A.M., Sint Annaland, M. van   +4 more
core   +1 more source

System Design Considerations for Magneto‐Electrocatalysis of the Oxygen Evolution Reaction

Small, EarlyView.
Electrocatalytic water‐splitting can be controlled using a magnetic field. The commercial prospects are exciting, but the progress is stuck in the fundamental stage of research. Progress is stagnated by publications with conflicting results, incomplete analysis, and inconsistent experimental setups.
Dorottya Szalay, Amy Radford, Yiyang Li, Shik Chi Edman Tsang   +3 more
wiley   +1 more source

Two‐Photon Microbubble Printing: Asymmetric Assembly for Continuous Laser Writing

Small, EarlyView.
Two‐photon microbubble printing is reported that combines nonlinear photochemistry with thermally driven fluid dynamics. At the laser focus, a distorted vapor bubble induce a strong rear‐to‐front convective flow. By enabling asymmetric assembly, this method allows the continuous formation of nanoparticle aggregates from a wide variety of materials ...
Masaharu Aoyama, Shogo Nara, Hiroshi Numata, Kaito Kimura, Sawa Suzuki, Hiroaki Nishiyama   +5 more
wiley   +1 more source