Turbulent Drag Reduction by Uniform Blowing Over a Two-dimensional Roughness
Sign Up to like & getrecommendations! Published in 2017 at "Flow, Turbulence and Combustion"
DOI: 10.1007/s10494-017-9858-2
Abstract: Direct numerical simulation (DNS) of turbulent channel flow over a two-dimensional irregular rough wall with uniform blowing (UB) was performed. The main objective is to investigate the drag reduction effectiveness of UB on a rough-wall… read more here.
Keywords: rough wall; two dimensional; wall; drag ... See more keywords
Turbulence investigation in the roughness sub-layer of a near wall flow
Sign Up to like & getrecommendations! Published in 2018 at "Environmental Fluid Mechanics"
DOI: 10.1007/s10652-018-9600-1
Abstract: The turbulence behaviour along a wall roughened by pyramidal elements was analysed in the region extending from the apex of the roughness elements up to the external limit of the roughness sub-layer. The data used… read more here.
Keywords: rough wall; layer; wall; roughness sub ... See more keywords
A direct comparison of pulsatile and non-pulsatile rough-wall turbulent pipe flow
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.337
Abstract: Pulsatile rough-wall turbulent pipe flow is compared against its non-pulsatile counterpart using data obtained from direct numerical simulation. Results are presented at a mean friction Reynolds number of 540 for a set of three geometrically… read more here.
Keywords: pulsatile rough; non pulsatile; rough wall; flow ... See more keywords
Application of the Universal Velocity Profile to rough-wall pipe flow
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Fluids"
DOI: 10.1063/5.0149482
Abstract: The universal velocity profile (UVP), defined initially for a smooth pipe, is extended to pipe flow with a rough wall. Data from pipe experiments of fixed roughness fraction and varying Reynolds number are used to… read more here.
Keywords: pipe flow; velocity; pipe; rough wall ... See more keywords
An Underactuated Adaptive Microspines Gripper for Rough Wall
Sign Up to like & getrecommendations! Published in 2023 at "Biomimetics"
DOI: 10.3390/biomimetics8010039
Abstract: Wall attachment has great potential in a broad range of applications such as robotic grasping, transfer printing, and asteroid sampling. Herein, a new type of underactuated bionic microspines gripper is proposed to attach to an… read more here.
Keywords: rough wall; wall; flexible structure; microspines gripper ... See more keywords