Results 81 to 90 of about 18,690 (210)

Refractive-index and density matching in concentrated particle suspensions: a review [PDF]

open access: yes, 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  

Untethered Magnetic Microswimmers for Targeted Particle Transport and Flow Manipulation

open access: yesAdvanced Materials Technologies, Volume 11, Issue 6, 18 March 2026.
This work introduces magnetically actuated microswimmers to dynamically reconfigure fluid flow within a single microfluidic device. Multiple homogeneous microswimmers are independently controlled by an external magnetic field to perform translational and rotational motions, thereby inducing real‐time flow manipulation.
Dineshkumar Loganathan   +3 more
wiley   +1 more source

Versatile and Highly Efficient MRI Simulation of Arbitrary Motion in KomaMRI

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 3, Page 1791-1803, March 2026.
ABSTRACT Purpose To extend the KomaMRI simulator with motion capabilities that enable the simulation of both simple, parametrizable motion patterns and arbitrarily complex spin trajectories. Additionally, we introduce a novel file format for storing and sharing dynamic digital phantoms.
Pablo Villacorta‐Aylagas   +7 more
wiley   +1 more source

Dataset of turbulent flow over interacting barchan dunes

open access: yesData in Brief
Barchans are dunes commonly found in dune fields on Earth, Mars and other celestial bodies, where they can interact with each other. This article concerns experimental data for the flow over subaqueous barchans that are either isolated or interacting ...
Jimmy G. Alvarez   +2 more
doaj   +1 more source

Particle Data Management Software for 3DParticle Tracking Velocimetry and Related Applications – The Flowtracks Package

open access: yesJournal of Open Research Software, 2016
The Particle Tracking Velocimetry (PTV) community employs several formats of particle information such as position and velocity as function of time, i.e. trajectory data, as a result of diverging needs unmet by existing formats, and a number of different,
Yosef Meller, Alex Liberzon
doaj   +1 more source

Fuzzy logic particle tracking velocimetry [PDF]

open access: yes
Fuzzy logic has proven to be a simple and robust method for process control. Instead of requiring a complex model of the system, a user defined rule base is used to control the process.
Wernet, Mark P.
core   +1 more source

Tomographic X-ray particle tracking velocimetry

open access: yes, 2022
Abstract: We investigate the feasibility of in-laboratory tomographic X-ray particle tracking velocimetry (TXPTV) and consider creeping flows with nearly density matched flow tracers. Specifically, in these proof-of-concept experiments we examined a Poiseuille flow, flow through porous media and a multiphase flow with a Taylor bubble.
Mäkiharju, Simo A   +4 more
openaire   +2 more sources

Control Effectiveness of Vortex Generators in High‐Speed Flows in Off‐Design Conditions

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.
ABSTRACT In aerospace transportation and propulsion systems, shock‐induced flow separation has strong detrimental effects on the aerodynamic behavior and performance. To alleviate these effects, separation control is necessary. A commonly pursued approach uses vortex generators (VG) of different design to increase the momentum transfer within the ...
Anne‐Marie Schreyer
wiley   +1 more source

A New Particle Extraction Algorithm for Particle Tracking Velocimetry.

open access: yesJournal of the Visualization Society of Japan, 2000
A new method of particle image detection has been implemented and tested for the use in the particle tracking velocimetry. The method benefits from a new algorithm of extracting individual particle images from a massive concentration of particles recorded in the PIV recordings.
Kazuo OHMI, Hang-Yu LI, Hai Lam Dao
openaire   +2 more sources

Multi‐State Rheology in Dense Particle‐Liquid Channel Flows Over Bumpy Bed and Its Constitutive Modeling

open access: yesWater Resources Research, Volume 62, Issue 3, March 2026.
Abstract Dense particle‐liquid flows are common in natural flows processes. A primary challenge lies in the effective modeling of the granular stress, which is intrinsically related to the flowing state of the granular material. By developing non‐invasive experimental technique and measurement methods for internal observations based on the refractive ...
Yunhui Sun   +5 more
wiley   +1 more source

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