Validating the Harmonic Balance Method for Turbomachinery Tonal Noise Predictions [PDF]
, 2017 A computational method for predicting turbomachinery tonal noise is presented. It is based on the Harmonic Balance method, which solves for the dominant frequencies of the flow generated by bladerow interaction.
Andersson, Niklas, Lindblad, Daniel
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Wake Development of Airfoils with Serrated Trailing Edges [PDF]
, 2016 Wake development and aero-acoustic performance of airfoils fitted with trailing-edge serrations have been studied experimentally. A symmetric (NACA 0012) and an asymmetric (NACA 65(12)-10) airfoil with different types of trailing-edge serrations have ...
Azarpeyvand, Mahdi +2 more
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Influence de la répartition de la charge sur les performances d'une turbomachine axiale contrarotative [PDF]
, 2013 Due to high requirements of energy consumption level, weight and dimension restriction in many industrial fields, compact axial turbomachines are expected. Counter-rotating axial-flow fans may be a solution.
BAKIR, Farid +3 more
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Optimal control of the heave motion of marine cable subsea-unit systems [PDF]
, 1995 One of the key problems associated with subsea operations involving tethered subsea units is the motions of support vessels on the ocean surface which can be transmitted to the subsea unit through the cable and increase the tension.
Huang, S., Vassalos, D.
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Wells turbine for wave energy conversion : a review [PDF]
, 2016 In the past twenty years, the use of wave energy systems has significantly increased, generally depending on the oscillating water column (OWC) concept. Wells turbine is one of the most efficient OWC technologies.
Al-Ajmi +175 more
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Flaperon Modification Effect on Jet-Flap Interaction Noise Reduction for Chevron Nozzles [PDF]
, 2007 Jet-flap interaction (JFI) noise can become an important component of far field noise when a flap is immersed in the engine propulsive stream or is in its entrained region, as in approach conditions for under-the-wing engine configurations.
Brusniak, Leon +4 more
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Numerical simulation of a tidal turbine based hydrofoil with leading-edge tubercles [PDF]
, 2016 The tubercles along the leading edges of the humpback whale flippers can provide these large mammals with an exceptional maneuverability. This is due to the fact that the leading-edge tubercles have largely a 3D benefit for the finite hydrofoils, which ...
Atlar, Mehmet +4 more
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Dipolar dynamos in stratified systems [PDF]
, 2015 Observations of low-mass stars reveal a variety of magnetic field topologies ranging from large-scale, axial dipoles to more complex magnetic fields. At the same time, three-dimensional spherical simulations of convectively driven dynamos reproduce a ...
Dormy, E., Petitdemange, L., Raynaud, R.
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Heat transfer and performance characteristics of axial cooling fans with downstream guide vanes [PDF]
, 2018 This study examines experimentally the effect of stators on the performance and heat transfer characteristics of small axial cooling fans. A single fan impeller, followed by nine stator blades in the case of a complete stage, was used for all the ...
Kalfas, Anestis +3 more
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Étude expérimentale de l’écoulement et de l’interaction entre deux rotors contrarotatifs subsoniques [PDF]
, 2014 Recently, the need for smaller axial‐flow fans with high specific speeds leads to the design of counter‐rotating axial fans. The design of this type of machines, which have promising aerodynamic performances, suffers from a lack of knowledge about their ...
BAKIR, Farid +2 more
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