Results 131 to 140 of about 22,970 (166)

On sea bed roughness variability

2003
Taormina ...
FARACI C, FOTI, Enrico, MALARKEY J, DAVIES A. G.   +3 more
openaire   +2 more sources

Forces On A Rough Bed In Oscillatory Flow

Journal of Hydraulic Research, 1976
Results are presented of numerical and analytical solutions for the drag and lift forces exerted in laminar flow on a two-dimensionally rough bed by wave action. As far as is known there are no other results, either experimental or theoretical, for the lift forces under these conditions and only two measurements, both at very high Reynolds numbers, of ...
openaire   +1 more source

Dependence of saltation parameters on bed roughness and bed porosity

2012
In numerical models of bed load transport a bed structure of channel could be described by two parameters, a size of bed particles and a standard deviation of normal distribution of bed particles in the vertical direction. The present paper deals with the effect of bed parameters on average length and height of one jump of saltating particle.
Kharlamova, I. (Irina), Vlasák, P. (Pavel)   +1 more
openaire   +1 more source

The influence of bed roughness on the dynamics of gravity currents,

2012
2012
Nogueira, H., Adduce, C., Alves, E., Franca, M.   +3 more
openaire   +3 more sources

DETERMINATION OF SAND ROUGHNESS FOR FIXED BEDS

Journal of Hydraulic Research, 1974
(1974). DETERMINATION OF SAND ROUGHNESS FOR FIXED BEDS. Journal of Hydraulic Research: Vol. 12, No. 2, pp. 193-203.
openaire   +1 more source

Roughness of stable, armored gravel beds

Water Resources Research, 1993
The grain roughness of stable armored beds that formed in a laboratory flume under a range of steady flow conditions on rounded, flat and angular gravel is analyzed. Gravel roughness geometry is determined from bed surface profiles and vertical photographs. These techniques have been employed in field situations.
openaire   +1 more source

Sediment transport in rough bed rivers

Sediment entrainment thresholds in rivers have been widely studied, informing the prediction of bedload transport rates that underpin morphodynamic modelling. However, quantification of sediment entrainment in complex channels with varying degrees of bedrock exposure and sediment cover remains limited. Here, physical modelling was conducted to simulate
Robert Houseago, Rebecca Hodge, Will Norris, Takuya Inoue   +3 more
openaire   +1 more source

Gene expression programming-based approach for predicting the roller length of a hydraulic jump on a rough bed

ISH Journal of Hydraulic Engineering, 2021
Hossein Bonakdari, Hamed Azimi, Isa Ebtehaj   +2 more
exaly  

Air–water flow properties in hydraulic jumps on rough pebbled bed

ISH Journal of Hydraulic Engineering, 2023
Farhad Bahmanpouri, Hubert Chanson, Carlo Gualtieri   +2 more
exaly  

Characteristics of Large-Scale Coherent Structures on Irregularly Arranged Rough-Bed Open-Channel Flows

Water (Switzerland), 2023
Peng Zhang
exaly