Three synchronized pulsed Doppler wind lidars were deployed from May 2016 to June 2016 on the shores of a wide Norwegian fjord called Bjørnafjord to study the wind characteristics at the proposed location of a planned bridge. The purpose was to investigate the potential of using lidars to gather information on turbulence characteristics in the middle of a wide fjord. The study includes the anal...

Abstract This study investigates the flow resistance and velocity distribution in a smooth triangular channel under varying slope conditions laboratory environment. For this purpose, two cross-sectional shaped channels with 30° 45° sidewall slopes were made. In various hydraulic conditions, bed carried out at different discharges channels. The results have been used to test stage-discharge curv...

Surface texturing is used to increase hydrodynamic pressure and reduce friction and wear between parallel sliding surfaces in a variety of applications. The shape, geometry, and density of the patterned microtexture features play a key role in the tribological performance of such textured slider bearings. Lubrication models are used to predict the load-carrying capacity, friction coefficient, a...

The article presents the results of improving numerical method developed in [1-3] for calculating roughness coefficient riverbed (RCOTR) to increase stability and using it study dependence RCOTR Instruch River on dimensionless complexes different seasons.

The role of the Manning roughness coefficient in modifying a tsunami time series flow depth inundation was studied Iquique, Chile, using single synthetic earthquake scenario. A high-resolution digital surface model used as reference configuration, and several bare land models constant were tested with different grid resolutions. As previously reported, increasing n value beyond standard values ...

Freshwater scarcity has driven the integration of technological advancements and automation systems in agriculture order to attempt improve water-use efficiency. For irrigation canals, efficiency is, great measure, limited by performance management responsible for controlling flow delivering water farmers. Recent studies show a significant sensitivity results obtained from canal control algorit...

The influence of surface roughness magnitude and direction on dry static friction coefficient between two similar steel samples has been studied through an experiment. A testing apparatus has been designed and fabricated to measure the friction coefficient for a few forms of surface asperity. According to the results of the experiments, dry friction coefficient is affected by both magnitude and...