Results 81 to 90 of about 145,008 (321)

Study of the time-dependent clear water scour around circular bridge piers

, 2017
The local scour around bridge piers influences their stabilities and plays a key role in the bridge failures. The estimation of the maximum possible scour depth around bridge piers is an important step in the design of the bridge pier foundations.
A. Aksoy, G. Bombar, Tanıl Arkis, M. S. Guney   +3 more
semanticscholar   +1 more source

Experimental Study on Clear Water Scour around Bridge Piers

, 2011
This study analyzed the characteristics of bridge scoured by clear water according to 14 groups of laboratory experiments. The formulation of critical velocity based on historical equations of clear water scour was concluded for the test circumstances in
Hsueh Chun Lin, Yao Ming Hong, Chi Chang Lin, Min Li Chang, Yao Chiang Kan   +4 more
core   +1 more source

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou   +4 more
wiley   +1 more source

Using the movability number to model local clear-water scour in rivers

, 2007
Includes bibliographical references.Local scour is associated with a considerable number of bridge failures worldwide. It occurs at bridge piers and abutments as a result of interactions between complex flow features and the channel bed.
Abban, Benjamin
core  

Iceberg Scour and Shell Damage in the Antarctic Bivalve Laternula elliptica [PDF]

, 2012
We document differences in shell damage and shell thickness in a bivalve mollusc (Laternula elliptica) from seven sites around Antarctica with differing exposures to ice movement. These range from 60% of the sea bed impacted by ice per year (Hangar Cove,
Peck, Lloyd S., Lloyd S Peck, Simon A Morley, Hoffman, Joseph ; https://orcid.org/, Hoffman, Joseph I., Melody S Clark, Clark, Melody S., Harper Elizabeth M., Peck, L, Harper, L, Hoffman Joseph I., Harper, Elizabeth M., Elizabeth M Harper, Clark Melody S., Peck Lloyd S., Philipp, Eva E. R., Morley, Simon A., Eva E R Philipp, Morley Simon A., Clark, M S, Joseph I Hoffman, Philipp Eva E. R., Morley, S   +22 more
core   +1 more source

Acoustic‐driven surface cleaning with millimeter‐sized bubbles at translational resonance

Droplet, EarlyView.
Time‐lapse visualization comparing bubble trajectories. The top panel (0 Hz) shows a bubble's linear path under no acoustic forcing, while the bottom panel (50 Hz) demonstrates the oscillatory motion induced by acoustic waves at a resonance mode. This mechanism holds promising potential for applications such as surface cleaning.
Yan Jun Lin, Zhengyang Liu, Sunghwan Jung   +2 more
wiley   +1 more source

Local Scour at Single Column Arrangement of Bridge Piles Group

علوم آب و خاک, 2021
In regard to wide piers, the pile group rather than single pile is used frequently to bear the loading of the structure in a particular arrangement; piles group composed of only one column of piles in the flow direction has a great effect on supporting ...
S. Okhravi, S. Gohari
doaj  

Optimizing and Evaluation of Scour Depth Prediction Techniques for Columns as a Component of Complex Bridge Piers [PDF]

Advances in Civil Engineering and Environmental Science
This study investigates the scour depths at isolated columns, integral components of complex piers, through a series of experiments conducted in a 46 m rectangular flume designed for clear-water scour testing.
Ata Amini, Thamer Mahmmod, Abdul Ghazali
doaj   +1 more source

Modelling local scour around bridge piers using TELEMAC

, 2005
Scour at bridge crossings is a major cause of bridge failure. There are several different types of scour such as general scour, constriction scour and local scour.
Kabir, Alamgir
core  

Clear-water scour at single piers and pile groups [PDF]

, 2013
The major damage to bridges at river crossings occurs during floods. Damage is caused for various reasons, one of the main reasons being the riverbed scour at bridge foundations.
Lança, Rui Miguel Madeira
core