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 …

Drag penalty causing from the roughness of recently cleaned and painted ship hull using RANS CFD

ML Hakim, B Nugroho, RC Chin, T Putranto… - CFD Letters, 2020 - akademiabaru.com
The issue of global warming makes energy savings on ships compulsory. One of the biggest
causes of energy waste is the increase in friction resistance due to the hull roughness that …

Reynolds number dependency of wall-bounded turbulence over a surface partially covered by barnacle clusters

S Sarakinos, A Busse - Flow, Turbulence and Combustion, 2024 - Springer
The settlement of barnacles on a ship hull is a common form of marine biofouling. In this
study, the Reynolds number dependency of turbulent flow over a surface partially covered …

Secondary motions and wall-attached structures in a turbulent flow over a random rough surface

GZ Ma, CX Xu, HJ Sung, WX Huang - … Journal of Heat and Fluid Flow, 2023 - Elsevier
Large-eddy simulations (LESs) are performed to explore the effects of roughness on the
secondary motions (SMs) and wall-attached structures in a turbulent open-channel flow over …

Numerical study of Fourier-filtered rough surfaces

F Alves Portela, A Busse, ND Sandham - Physical Review Fluids, 2021 - APS
Rough surfaces are common in engineering applications, where a priori estimations of drag
for a given flow are needed based on knowledge of the surface topography. It is likely that …

Direct numerical simulations of turbulent boundary layers developing over synthesised calcareous marine biofouling surfaces

IK Kaminaris, E Balaras - Ships and Offshore Structures, 2024 - Taylor & Francis
The topographical complexity and multi-scale nature of biofouling makes the use of current
drag-topography correlations over regular topographical arrangements impractical. In order …

[PDF][PDF] Influence of spatial distribution of roughness elements on turbulent flow past a biofouled surface

S Sarakinos, A Busse - 2019 - eprints.gla.ac.uk
In most fundamental studies on the effect of roughness elements on wall-bounded
turbulence regular arrangements of roughness elements are investigated. In this study …

On the effects of surface texturing on turbulent flow and its impact on the early-stage of bio-fouling settlement

A Peyvasteh Nejad - 2024 - doras.dcu.ie
Bio-fouling formation and growth can significantly alter the surfaces of most structures,
systems, or equipment designed to operate in the marine environment. Many effective anti …

Reynolds Number Dependency of Turbulent Flow over a Surface Fouled by Barnacles

A Busse, S Sarakinos - ERCOFTAC Workshop Direct and Large Eddy …, 2023 - Springer
The shipping sector contributes a rising share to anthropogenic greenhouse gas emissions.
The International Maritime Organisation reported that in 2018 total shipping, ie, international …

[引用][C] Digitalização 3D aplicada à análise de rugosidade de superfície devido à bioincrustações em cascos de navio.

DD Lisboa - 2020