Results 181 to 190 of about 591 (207)

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Journal of Visualized Experiments, 2019
An experimental method is presented in this paper to facilitate visualization of the detailed flow fields and determination of the near-boundary shear and normal stresses within an equilibrium scour hole induced by a vibrating pipeline. This method involves the implementation of a pipeline vibration system in a straight flume, a time-resolved particle ...
Dawei, Guan, Yee-Meng, Chiew, Maoxing, Wei, Shih-Chun, Hsieh   +3 more
openaire   +2 more sources

Equilibrium scour depth at offshore monopile foundation in combined waves and current

Science China Technological Sciences, 2014
Unlike the pier scour in bridge waterways, the local scour at offshore monopile foundations should take into account the effect of wave-current combination. Under the condition of wave-current coexistence, the water-soil interfacial scouring is usually coupled with the pore-pressure dynamics inside of the seabed.
WenGang Qi, FuPing Gao
openaire   +1 more source

Fuzzy Logic Model for Equilibrium Scour Downstream of a Dam's Vertical Gate

Journal of Hydraulic Engineering, 2006
Scour at a downstream vertical gate of a dam is investigated using a fuzzy logic inference system. The application is presented for experimental data sets. A comparison is made between a regression formulation (RM) and a fuzzy logic approach. Some restrictive assumptions for RM are discussed. Here the Takagi–Sugeno (TS) approach is used with a constant
Ali Uyumaz, Abdüsselam Altunkaynak, Mehmet Özger   +2 more
openaire   +1 more source

Equilibrium clear-water scour around an abutment

1998
JOURNAL OF HYDRAULIC ...
ARMENIO, VINCENZO, CARONI, ELPIDIO, FIOROTTO, Virgilio   +2 more
openaire   +1 more source

Large Eddy Simulations of a rotating propeller in an equilibrium scour hole

Propeller-induced scour hole is one of the most fascinating present-day topics. First laboratory tests back years ago were in still water (SW) simulating harbour conditions, whereas less attention was paid to the influence of a flow impacting the propeller, which is a typical condition in navigable channels.
Lauria A., Ferraro D., Servidio S., Gaudio R.   +3 more
openaire   +2 more sources

Equilibrium Time of Scour Near Water Engineering Structures on River Floodplains

2018
The differential equation of the bed sediment movement in clear-water scour conditions was used and a new method for equilibrium time of scour calculation at water engineering structures with flow separation at the structure in clear-water scour conditions was elaborated.
Oskars Lauva, Boriss Gjunsburgs
openaire   +1 more source

Equilibrium depth and time scale of local scour around a forced vibrating pipeline

Coastal Engineering, 2023
Yee Meng Chiew, Chunning Ji
exaly  

Discussion of “Equilibrium Depth of Scour in Long Constrictions”

Journal of the Hydraulics Division, 1967
David I. H. Barr, John G. Herbertson
openaire   +1 more source

A Calculation Model of the Equilibrium Scour Depth for Monopile Foundations Under Waves and Currents

Arabian Journal for Science and Engineering, 2021
Guoliang Dai, Gao Luchao, Zhihui Wan
exaly  

Equilibrium Depth of Scour in Long Constrictions

Journal of the Hydraulics Division, 1966
openaire   +1 more source