Ultimate Rayleigh-Bénard turbulence

D Lohse, O Shishkina - Reviews of modern physics, 2024 - APS
Thermally driven turbulent flows are omnipresent in nature and technology. A good
understanding of the physical principles governing such flows is key for numerous problems …

Hydrodynamic effects of biofouling-induced surface roughness–Review and research gaps for shallow water offshore wind energy structures

M Maduka, F Schoefs, K Thiagarajan, A Bates - Ocean Engineering, 2023 - Elsevier
Several studies have been performed in the last three decades to assess the impacts of
marine biofouling on offshore wind turbines (OWTs) substructures. Marine biofouling …

Highly efficient and durable solar thermal energy harvesting via scalable hierarchical coatings inspired by stony corals

JF Torres, K Tsuda, Y Murakami, Y Guo… - Energy & …, 2022 - pubs.rsc.org
Concentrating solar thermal (CST) is an efficient renewable energy technology with low-cost
thermal energy storage. CST relies on wide-spectrum solar thermal absorbers that must …

Impact of spanwise effective slope upon rough-wall turbulent channel flow

TO Jelly, A Ramani, B Nugroho, N Hutchins… - Journal of Fluid …, 2022 - cambridge.org
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 …

Reorganisation of turbulence by large and spanwise-varying riblets

S Endrikat, R Newton, D Modesti… - Journal of Fluid …, 2022 - cambridge.org
We study the flow above non-optimal riblets, specifically large drag-increasing and two-
scale trapezoidal riblets. In order to reach large Reynolds numbers and large scale …

Effect of high skewness and kurtosis on turbulent channel flow over irregular rough walls

A Busse, TO Jelly - Journal of Turbulence, 2023 - Taylor & Francis
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 …

[HTML][HTML] A comparison of RANS Models used for CFD prediction of turbulent flow and heat transfer in rough and smooth channels

M Kadivar, D Tormey, G McGranaghan - International Journal of …, 2023 - Elsevier
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 …

Direct numerical simulation of supersonic turbulent flows over rough surfaces

D Modesti, S Sathyanarayana, F Salvadore… - Journal of Fluid …, 2022 - cambridge.org
We perform direct numerical simulation of supersonic turbulent channel flow over cubical
roughness elements, spanning bulk Mach numbers, both in the transitional and fully rough …

Flow over closely packed cubical roughness

HHA Xu, SJ Altland, XIA Yang, RF Kunz - Journal of Fluid Mechanics, 2021 - cambridge.org
Cube arrays are one of the most extensively studied types of surface roughness, and there
has been much research on cubical roughness with low-to-moderate surface coverage …

Mesoscale structure of the atmospheric boundary layer across a natural roughness transition

J Cooke, D Jerolmack, GI Park - Proceedings of the …, 2024 - National Acad Sciences
The structure and intensity of turbulence in the atmospheric boundary layer (ABL) drive
fluxes of sediment, contaminants, heat, moisture, and CO 2 at the Earth's surface. Where …