Results 51 to 60 of about 22,970 (166)

Experimental study on non-uniform sediment motion characteristics

open access: yesShui kexue jinzhan, 2016
The sand in a natural riverbed is usually non-uniform and is considered as the basis for simulating and forecasting the evolution of the natural riverbed, to accurately understand the movement of non-uniform sediment particles.
XU Linjuan, CAO Wenhong, LIU Chunjing
doaj   +1 more source

Measurements of Mass Transport Over a Rough Bed

open access: yesCoastal Engineering 1984, 1984
Measurements have been made with a laser doppler anemometer of the time-mean velocity of the fluid close to the bed in a wave flume. Both a rough bed, consisting of gravel of median diameter 11 mm, and a smooth bed were investigated. With the rough bed the time-mean velocity at a given height was found to be strongly dependent on position relative to ...
openaire   +2 more sources

Effect of aspect ratio on higher order moments of velocity fluctuations in hydraulically rough open channel flow

open access: yesE3S Web of Conferences, 2018
The effect of aspect ratio on the higher order statistics of velocity fluctuations in a hydraulically rough turbulent open channel flow is investigated.
Mahananda Minakshee   +1 more
doaj   +1 more source

Experimental and Theoretical Investigation of Moisture Dynamics in Intermittent Drying of Rough Rice

open access: yesJournal of Chemical and Petroleum Engineering, 2012
Intermittent drying is a satisfactory technique for drying of heat sensitive grains especially rough rice. This method consists of two separate stages applied intermittently: drying and tempering.
Morteza Golmohammadi   +2 more
doaj   +1 more source

Manual polishing of 3D printed metals produced by laser powder bed fusion reduces biofilm formation.

open access: yesPLoS ONE, 2019
Certain 3D printed metals and surface finishes may be better suited for canine patient specific orthopedic implants on the basis of minimizing potential bacterial biofilm growth.
Marissa McGaffey   +5 more
doaj   +1 more source

Effect of roughness on sequent depth in hydraulic jumps over rough bed

open access: yesGrađevinar, 2019
Hydraulic jump is an important phenomenon in open channel flows such as rivers and spillways. Hydraulic jump is mainly used for kinetic energy dissipation at the downstream side of a spillway with the assist of baffle blocks.
Arpan Arunrao Deshmukh   +3 more
doaj   +1 more source

Velocity profile of turbulent open-channel flows over rough and permeable beds

open access: yesShui kexue jinzhan, 2013
The time-mean velocity profile of turbulent open-channel flows over rough and permeable beds is analyzed both experimentally and theoretically in this study.
CHEN Xingwei   +3 more
doaj   +1 more source

Evaluating the Hydraulic Performance of USBR II Stilling Basin with Rough Bed

open access: yesTikrit Journal of Engineering Sciences
Stilling basins are built in conjunction with dams, weirs, and gates to dissipate the high kinetic energy of incoming flow and prevent severe scouring of the downstream riverbed.
Layla A. M. Saleh, Saleh I. Khassaf
doaj   +1 more source

Quantification of bed-load transport over dunes

open access: yesE3S Web of Conferences, 2018
There is disagreement in the literature as to whether a shear stress-based approach can be used to accurately predict sediment transport over dunes. This study aims to address this disagreement.
Lockwood Kenneth   +2 more
doaj   +1 more source

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