Results 91 to 100 of about 1,987 (214)

Model of a Ducted Axial-Flow Hydrokinetic Turbine – Results of Experimental and Numerical Examination

open access: yesPolish Maritime Research, 2018
The article presents the numerical algorithm of the developed computer code which calculates performance characteristics of ducted axial-flow hydrokinetic turbines.
Góralczyk Adam, Adamkowski Adam
doaj   +1 more source

Computer aided flow analysis in a cavitation tunnel / Tengku Maziah Tengku Abdullah [PDF]

open access: yes, 1998
This report presents the Computer Aided study of the flow conditions in a Cavitation Tunnel using the CFD software ‘FLUENT’. A computer model of a Cavitation Tunnel is made and flow analysis are presented.The suitable geometry of the Cavitation Tunnel is
Tengku Abdullah, Tengku Maziah
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Observations of Oscillating Cavitation on a Flat Plate Hydrofoil

open access: yes, 2001
An experimental investigation was made to clarify the characteristics of oscillating cavitation on a flat plate hydrofoil in a water tunnel. Dynamic the behavior of oscillating cavitation is discussed from the unsteady pressure measurements at the ...
Sato, K.   +3 more
core  

On some physics to consider in numerical simulation of erosive cavitation

open access: yes, 2009
This paper discusses some hydrodynamic mechanisms in erosive cavitation, which are all important to capture, and consider, when assessing the risk of erosion, by numerical simulations or model tests in a cavitation tunnel.
Grekula, Mikael,   +3 more
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Modeling collapse aggresiveness of cavitation bubbles in hydromachinery [PDF]

open access: yes, 2009
A simple model of assessment of collapse aggressiveness of cavitation bubbles suitable for application at pump design stage is proposed. The model is focused on quantifying the energetic effects of single bubble collapses and the emphasis is placed on ...
Zima, P., Sedlar, M., Muuller, M.
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Mechanism and scalability of tip vortex cavitation suppression by water and polymer injection [PDF]

open access: yes, 2009
Tip vortex cavitation (TVC) is typically the first form of cavitation observed in propellers; therefore a delay in its onset is sought. TVC suppression via mass injection in the core of the vortex was studied with an elliptical plan-form hydrofoil NACA ...
Ceccio, S.   +3 more
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On the Effects of Temperature and Material Erosion on the Cavitation Aggressiveness Based on Acoustic Emission

open access: yesApplied Sciences
Cavitation erosion is a major concern in hydraulic systems exposed to strong pressure fluctuations. Well-developed experimental techniques exist for detecting cavitation based on measuring induced noise or vibrations, but additional tools are needed to ...
Ismael Fernández-Osete   +3 more
doaj   +1 more source

Cavitation Erosion on a Model Ice Class Propeller in Blocked Flow

open access: yes, 1995
Ships which operate in arctic and sub-Arctic conditions are often subjected to momentary increased propeller cavitation because ice pieces block the flow into the propeller.
Doucet, J. M.   +3 more
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Tribological design constraints of marine renewable energy systems

open access: yes, 2010
Against the backdrop of increasing energy demands, the threat of climate change and dwindling fuel reserves, finding reliable, diverse, sustainable/renewable, affordable energy resources has become a priority for many countries.
AbuBakr S. Bahaj   +11 more
core   +1 more source

On the Detachment of a Leading Edge Cavitation

open access: yes, 2001
In the present paper we present an experimental investigation of the onset and detachment of leading edge cavitation. Tests are conducted in the LMH high speed cavitation tunnel on a 2-D Naca0009 hydrofoil having 100 mm chord length.
Avellan, Francois, Farhat, Mohamed
core  

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