Heat transfer and friction factor correlations development for solar air heater duct artificially roughened with ‘S’ shape ribs
Sign Up to like & getrecommendations! Published in 2017 at "Experimental Thermal and Fluid Science"
DOI: 10.1016/j.expthermflusci.2016.11.012
Abstract: Abstract This paper presents the experimental investigation for heat transfer and friction factor for an artificially roughened solar air heater duct having an aspect ratio of 12. Arc shape wire ribs arranged in ‘S’ shape… read more here.
Keywords: friction factor; roughness; relative roughness; duct ... See more keywords
A parametric analysis of rectangular rib roughened triangular duct solar air heater using computational fluid dynamics
Sign Up to like & getrecommendations! Published in 2017 at "Solar Energy"
DOI: 10.1016/j.solener.2017.08.071
Abstract: Abstract Solar air heater (SAH) absorbs thermal radiations from Sun and utilizes it to heat air. The thermal performance of SAH can be improved by using ribs on the absorber plate. In this paper, rectangular… read more here.
Keywords: fluid; relative roughness; air; rib ... See more keywords
Experiments on liquid droplet impingement erosion on a rough surface
Sign Up to like & getrecommendations! Published in 2018 at "Wear"
DOI: 10.1016/j.wear.2017.12.003
Abstract: Abstract Liquid droplet impingement (LDI) erosion on a rough surface was studied experimentally in the initial stage of erosion using spray-jet impingement on various levels of sandpaper roughness and single groove roughness. The experimental results… read more here.
Keywords: droplet; relative roughness; erosion; groove ... See more keywords
Roughness of a subglacial conduit under Hansbreen, Svalbard
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Glaciology"
DOI: 10.1017/jog.2016.134
Abstract: ABSTRACT Hydraulic roughness exerts an important but poorly understood control on water pressure in subglacial conduits. Where relative roughness values are 5%. Here we report the first quantitative assessment of roughness heights and hydraulic diameters… read more here.
Keywords: relative roughness; subglacial conduit; conduit; roughness heights ... See more keywords
Hydrodynamic instability of free river bars
Sign Up to like & getrecommendations! Published in 2021 at "Physics of Fluids"
DOI: 10.1063/5.0045530
Abstract: In this paper, we explore the hydrodynamic instability of free river bars driven by a weakly varying turbulent flow in a straight alluvial channel with erodible bed and non-erodible banks. We employ linear stability analysis… read more here.
Keywords: river bars; relative roughness; number; shields number ... See more keywords
Effects of Relative Roughness and Particle Size on the Interface Behavior of Concrete Suction Caisson Foundation for Offshore Wind Turbines
Sign Up to like & getrecommendations! Published in 2020 at "Energies"
DOI: 10.3390/en13225866
Abstract: The interface behavior between a caisson and the surrounding soil plays an important role in the installation of suction caissons as foundations for offshore wind turbines. A series of shear tests were carried out using… read more here.
Keywords: particle size; sand; relative roughness; test ... See more keywords