[HTML][HTML] A review on turbulent flow over rough surfaces: Fundamentals and theories
Surface roughness can significantly influence the fluid dynamics and heat transfer in
convective flows by inducing perturbations in the velocity profile which affect surface drag …
convective flows by inducing perturbations in the velocity profile which affect surface drag …
[HTML][HTML] Direct numerical simulation of turbulent flow over a rough surface based on a surface scan
A Busse, M Lützner, ND Sandham - Computers & Fluids, 2015 - Elsevier
Typical engineering rough surfaces show only limited resemblance to the artificially
constructed rough surfaces that have been the basis of most previous fundamental research …
constructed rough surfaces that have been the basis of most previous fundamental research …
Reynolds-number dependence of the near-wall flow over irregular rough surfaces
A Busse, M Thakkar, ND Sandham - Journal of Fluid Mechanics, 2017 - cambridge.org
The Reynolds-number dependence of turbulent channel flow over two irregular rough
surfaces, based on scans of a graphite and a grit-blasted surface, is studied by direct …
surfaces, based on scans of a graphite and a grit-blasted surface, is studied by direct …
The instantaneous structure of secondary flows in turbulent boundary layers
Secondary flows can develop in turbulent boundary layers that grow over surfaces with
spanwise inhomogeneities. In this article, we demonstrate the formation of secondary flows …
spanwise inhomogeneities. In this article, we demonstrate the formation of secondary flows …
[HTML][HTML] A comparison of RANS Models used for CFD prediction of turbulent flow and heat transfer in rough and smooth channels
CFD of convective heat transfer remains a challenge, especially in channels with irregular
rough walls due to the complex fluid dynamics over and between these roughness …
rough walls due to the complex fluid dynamics over and between these roughness …
Reynolds and dispersive shear stress contributions above highly skewed roughness
The roughness functions induced by irregular peak-and/or pit-dominated surfaces in a fully
developed turbulent channel flow are studied by direct numerical simulation. A surface …
developed turbulent channel flow are studied by direct numerical simulation. A surface …
[HTML][HTML] Reynolds number dependence of Reynolds and dispersive stresses in turbulent channel flow past irregular near-Gaussian roughness
Direct numerical simulations of fully-developed turbulent channel flow with irregular rough
walls have been performed at four friction Reynolds numbers, namely, 180, 240, 360 and …
walls have been performed at four friction Reynolds numbers, namely, 180, 240, 360 and …
Direct numerical simulation of turbulent heat transfer on the Reynolds analogy over irregular rough surfaces
Y Kuwata - International Journal of Heat and Fluid Flow, 2021 - Elsevier
The effect of rough surface topography on heat and momentum transfer is studied by direct
numerical simulations of turbulent heat transfer over uniformly heated three-dimensional …
numerical simulations of turbulent heat transfer over uniformly heated three-dimensional …
Direct numerical simulation of turbulence over systematically varied irregular rough surfaces
Y Kuwata, Y Kawaguchi - Journal of Fluid Mechanics, 2019 - cambridge.org
Lattice Boltzmann direct numerical simulation of turbulent open-channel flows over
randomly distributed hemispheres at is carried out to reveal the influence of roughness …
randomly distributed hemispheres at is carried out to reveal the influence of roughness …
Influence of surface anisotropy on turbulent flow over irregular roughness
The influence of surface anisotropy upon the near-wall region of a rough-wall turbulent
channel flow is investigated using direct numerical simulation (DNS). A set of nine irregular …
channel flow is investigated using direct numerical simulation (DNS). A set of nine irregular …