Results 11 to 20 of about 153,851 (265)

Surface velocity distribution and rheological proprties estimation of debris flows [PDF]

open access: yesItalian Journal of Engineering Geology and Environment, 2017
Debris flows are among the most dangerous natural hazards in mountainous areas. In European Alps, they are associated to summer heavy rainfalls and can be extremely destructive. Nevertheless, their rheology, at field scale, is still not well known. These mixtures of debris, water and air behave as non- Newtonian fluids, with a plastic yield strength, a
Tecca, PR, Genevois R, Deganutti AM
openaire   +1 more source

Measuring Surface Velocity of Water Flow by Dense Optical Flow Method [PDF]

open access: yesWater, 2019
Recent advances in video processing technology have provided a new approach to measuring the surface velocity of water flow (SVWF). However, most of the previous researches using video processing technology depended on tracers for target tracing, requiring spraying tracers in the measurement process.
Wu, Zhao, Gan, Ma
openaire   +1 more source

Thermal and Flow Analysis of Fully Developed Electroosmotic Flow in Parallel-Plate Micro- and Nanochannels with Surface Charge-Dependent Slip

open access: yesMicromachines, 2022
This study analytically investigates the coupled effects of surface charge and boundary slip on the fully developed electroosmotic flow and thermal transfer in parallel plate micro and nanochannels under the high zeta potential.
Long Chang   +3 more
doaj   +1 more source

Flow measurement around the edges and curved outer surface of a rotating disk

open access: yesJournal of Fluid Science and Technology, 2021
An experimental study is performed to investigate the flow structures near the edges of rotating disks with different edge shapes. By changing the rotational speed, the Reynolds number is changed from 277 to 356.
Yu NISHIO   +3 more
doaj   +1 more source

The Impact of Surface Discontinuities on MEMS Thermal Wind Sensor Accuracy

open access: yesSensors, 2023
A 2D calorimetric flow transducer is used to study distortions of the flow velocity field induced by small surface discontinuities around the chip. The transducer is incorporated into a matching recess of a PCB enabling wire-bonded interconnections to ...
Almir Talic   +5 more
doaj   +1 more source

River Surface Velocimetry Based on Virtual River Dataset and Modulated-RAFT

open access: yesIEEE Access, 2023
In recent years, there has been a surge of interest in image-based velocimetry methods for river surface velocity (RSV) estimation due to their efficiency and accuracy, including large-scale particle image velocimetry (LSPIV), space-time image ...
Yixin Wu   +5 more
doaj   +1 more source

Surface velocity model of the flow caused by a DBD plasma actuator

open access: yesNihon Kikai Gakkai ronbunshu, 2018
The surface velocity model is proposed for modelling the flow caused by a DBD plasma actuator. While numerical model presented up to now for the DBD plasma actuator, i.e.
Keunseob LEE   +2 more
doaj   +1 more source

Mountain Glacier Flow Velocity Retrieval from Ascending and Descending Sentinel-1 Data Using the Offset Tracking and MSBAS Technique: A Case Study of the Siachen Glacier in Karakoram from 2017 to 2021

open access: yesRemote Sensing, 2023
Synthetic Aperture Radar images have recently been utilized in glacier surface flow velocity research due to their continuously improving imaging technology, which increases the resolution and scope of research.
Qian Liang, Ninglian Wang
doaj   +1 more source

Handbook for Surface Flow Velocity Measurement

open access: yes, 2019
Acquisition of real-time hydraulic data is an essential component for flood forecasting. However, we frequently face difficulties in obtaining discharge data using classical contact methods during high magnitude floods and for systems experiencing rapid hydro-geomorphological adjustment.
Hortobagyi, Borbala   +3 more
openaire   +2 more sources

Flow and Turbulence driven Water Surface Roughness and Gas Exchange Velocity in Streams

open access: yesE3S Web of Conferences, 2018
Gas exchange velocity in streams and rivers controls fluxes of atmospheric gases across the air-water interface and is commonly related to the turbulence at the water side. Similarly, river flow hydraulics influences the water surface roughness, which is
Noss Christian   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy