Friction drag reduction of external flows with bubble and gas injection
SL Ceccio - Annual Review of Fluid Mechanics, 2010 - annualreviews.org
The lubrication of external liquid flow with a bubbly mixture or gas layer has been the goal of
engineers for many years, and this article presents the underlying principles and recent …
engineers for many years, and this article presents the underlying principles and recent …
Bubbly and buoyant particle–laden turbulent flows
Fluid turbulence is commonly associated with stronger drag, greater heat transfer, and more
efficient mixing than in laminar flows. In many natural and industrial settings, turbulent liquid …
efficient mixing than in laminar flows. In many natural and industrial settings, turbulent liquid …
[HTML][HTML] Marine drag reduction of shark skin inspired riblet surfaces
YF Fu, CQ Yuan, XQ Bai - Biosurface and Biotribology, 2017 - Elsevier
Shark skin inspired riblet surfaces have been known to have drag reduction effect for the
over past 40 years. It first drew the attention from the aircraft industry. With the property of low …
over past 40 years. It first drew the attention from the aircraft industry. With the property of low …
[BOOK][B] Micro-and nanobubbles
H Tsuge - 2014 - api.taylorfrancis.com
Prof. H. Ohnari (2007) developed microbubble generators to produce micrometer-size
bubbles and used them for aquacultures of oysters in Hiroshima, scallops in Hokkaido, and …
bubbles and used them for aquacultures of oysters in Hiroshima, scallops in Hokkaido, and …
The importance of bubble deformability for strong drag reduction in bubbly turbulent Taylor–Couette flow
DPM van Gils, DN Guzman, C Sun… - Journal of fluid …, 2013 - cambridge.org
Bubbly turbulent Taylor–Couette (TC) flow is globally and locally studied at Reynolds
numbers of. We conclude that bubble deformability is a relevant mechanism behind the …
numbers of. We conclude that bubble deformability is a relevant mechanism behind the …
Color-coded visualization of microbubble clouds interacting with eddies in a spatially develo** turbulent boundary layer
Three-dimensional distribution of microbubbles dispersed in a turbulent boundary layer
spatially develo** along a flat plate is investigated experimentally. The aim of study is to …
spatially develo** along a flat plate is investigated experimentally. The aim of study is to …
Image analysis applied to study on frictional-drag reduction by electrolytic microbubbles in a turbulent channel flow
K Hara, T Suzuki, F Yamamoto - Experiments in fluids, 2011 - Springer
We investigate frictional-drag reduction with electrolytic microbubbles based on image
measurement of a turbulent flow in a water channel at Re= 4800 (based on the half channel …
measurement of a turbulent flow in a water channel at Re= 4800 (based on the half channel …
Review of micro-bubble ship resistance reduction methods and the mechanisms that affect the skin friction on drag reduction from 1999 to 2015
In order to lower down the fuel consumption and to achieve higher speed of ship, reduction
in ship resistance has been the major topic of research for a long time. The most important …
in ship resistance has been the major topic of research for a long time. The most important …
Investigation of retention of gases in transverse hydrophobic microgrooved surfaces for drag reduction
B Wang, J Wang, Z Dou, D Chen - Ocean Engineering, 2014 - Elsevier
The drag reduction effect of superhydrophobic surface induced by trapped air is
substantially weakened with water immersion time. The gradual disappearance of the …
substantially weakened with water immersion time. The gradual disappearance of the …
Numerical study of hydrodynamic drag effects of streamwise riblet structures on SUBOFF bare hull model
This study performs a full-scale numerical simulation on meter-scale underwater vehicles
(UWVs) with micrometer-scale V-type streamwise riblet structures, focusing on …
(UWVs) with micrometer-scale V-type streamwise riblet structures, focusing on …