[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 …
Impact of spanwise effective slope upon rough-wall turbulent channel flow
Whereas streamwise effective slope (surfaces in this study can lead to diminished levels of
outer-layer similarity in both mean flow and turbulence statistics, which is attributed to …
outer-layer similarity in both mean flow and turbulence statistics, which is attributed to …
Effect of high skewness and kurtosis on turbulent channel flow over irregular rough walls
The skewness of the roughness height distribution is one of the key topographical
parameters that govern roughness effects on wall-bounded turbulence. In this paper …
parameters that govern roughness effects on wall-bounded turbulence. In this paper …
[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 …
[HTML][HTML] Turbulent Heat Transfer over roughness: a comprehensive review of theories and turbulent flow structure
Turbulent heat transfer over rough surfaces is crucial in natural and industrial processes, yet
it has received less attention than that of momentum transfer. Recently, research in this field …
it has received less attention than that of momentum transfer. Recently, research in this field …
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-based characterization of pseudo-random roughness in minimal channels
Direct numerical simulations (DNS) are used to systematically investigate the applicability of
the minimal-channel approach (Chung et al., J. Fluid Mech., vol. 773, 2015, pp. 418–431) for …
the minimal-channel approach (Chung et al., J. Fluid Mech., vol. 773, 2015, pp. 418–431) for …
A practical empirical formula for the calculation of ship added friction-resistance due to (bio) fouling
An accurate prediction of the ship added friction-resistance due to (bio) fouling is important
in the maritime sector in view of environmental sustainability. For industrial needs, the …
in the maritime sector in view of environmental sustainability. For industrial needs, the …
Investigation of rough-wall turbulence over barnacle roughness with increasing solidity using direct numerical simulations
S Sarakinos, A Busse - Physical Review Fluids, 2022 - APS
Barnacle-type roughness can be considered as a hybrid form of roughness that combines
some of the topographical features of traditional regular rough surfaces composed of …
some of the topographical features of traditional regular rough surfaces composed of …
High-fidelity computational study of roughness effects on high pressure turbine performance and heat transfer
While blade surface roughness arising from in-service wear and/or the manufacturing
process greatly affects aero-thermal performance, the detailed underlying physical …
process greatly affects aero-thermal performance, the detailed underlying physical …