Results 31 to 40 of about 2,660,132 (330)

Installed performance assessment of a boundary layer ingesting distributed propulsion system at design point [PDF]

open access: yes, 2016
Boundary layer ingesting systems have been proposed as a concept with great potential for reducing the fuel consumption of conventional propulsion systems and the overall drag of an aircraft.
Goldberg, Chana   +3 more
core   +1 more source

An Analytical Model for Wind Turbine Wakes under Pressure Gradient

open access: yesEnergies, 2022
In this study, we present an analytical modeling framework for wind turbine wakes under an arbitrary pressure gradient imposed by the base flow. The model is based on the conservation of the streamwise momentum and self-similarity of the wake velocity ...
Arslan Salim Dar, Fernando Porté-Agel
doaj   +1 more source

Wind-turbine wake encounter by light aircraft [PDF]

open access: yes, 2017
No abstract ...
Barakos, G.N., Wang, Y., White, M.
core   +1 more source

Fast optimisation of tidal stream turbine positions for power generation in small arrays with low blockage based on superposition of self-similar far-wake velocity deficit profiles

open access: yes, 2016
Far wake velocities of a single horizontal axis three-bladed turbine in shallow flow have been measured previously in the laboratory and shown to have self-similar velocity deficit profiles.
P. Stansby, T. Stallard
semanticscholar   +1 more source

Effect of blade number on flow around straight-bladed vertical axis wind turbine

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The influence on performance during the revolution of a straight-bladed vertical axis wind turbine (VAWT) is discussed, focusing on the effect of the blade number.
Qing'an LI   +6 more
doaj   +1 more source

Stochastic Models for the Kinematics of Moisture Transport and Condensation in Homogeneous Turbulent Flows [PDF]

open access: yes, 2006
The transport of a condensing passive scalar is studied as a prototype model for the kinematics of moisture transport on isentropic surfaces. Condensation occurs whenever the scalar concentration exceeds a specified local saturation value.
O'Gorman, Paul A., Schneider, Tapio
core   +1 more source

Refined representation of turbines using a 3D SWE model for predicting distributions of velocity deficit and tidal energy density

open access: yes, 2015
Energy sustainability has become one of the most concerned issues around the world, and tidal stream power is one of the promising types of renewable energy with merits of high predictability, relatively low cost, and low environmental impact.
Jie Lin   +4 more
semanticscholar   +1 more source

Constraints on fault and lithosphere rheology from the coseismic slip and postseismic afterslip of the 2006 M_w 7.0 Mozambique earthquake [PDF]

open access: yes, 2012
The 2006 M_w 7.0 Mozambique (Machaze) normal-faulting earthquake ruptured an unusually steeply dipping fault plane (~75°). The amount of slip in the earthquake decreased from depths of ~10 km toward the surface, and this shallow slip deficit was at least
Bergman, Eric   +2 more
core   +1 more source

Cores in Dwarf Galaxies from Dark Matter with a Yukawa Potential

open access: yes, 2010
We show that cold dark matter particles interacting through a Yukawa potential could naturally explain the recently observed cores in dwarf galaxies without affecting the dynamics of objects with a much larger velocity dispersion, such as clusters of ...
A. Loeb, Abraham Loeb, Neal Weiner
core   +1 more source

Star Formation Rates from [C II] 158 μm and Mid-infrared Emission Lines for Starbursts and Active Galactic Nuclei [PDF]

open access: yes, 2014
A summary is presented for 130 galaxies observed with the Herschel Photodetector Array Camera and Spectrometer instrument to measure fluxes for the [C II] 158 μm emission line.
A. Samsonyan   +40 more
core   +4 more sources

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