Results 21 to 30 of about 571,229 (299)
Vortex model of the aerodynamic wake of airborne wind energy systems [PDF]
Wind Energy Science, 2023 Understanding and modeling the aerodynamic wake of airborne wind energy systems (AWESs) is crucial for estimating the performance and defining the design of such systems, as tight trajectories increase induced velocities and thus decrease the available ...
F. Trevisi, C. E. D. Riboldi, A. Croce
doaj +1 more source
Journal of Physics: Conference Series, 2015 This paper presents a simple physical model to improve the currently used far-wake deficit models in the wind industry. The main improvement is deemed on the determination of the wake deficit in the near-wake. A Vortex Ring Model (VRM) is used to calculate the induced velocities in the near-wake, which are then coupled to the Jensen far-wake model and ...
Van Heemst, J.W. (author) +3 more
openaire +3 more sources
Laser anemometer measurements of trailing vortices in water [PDF]
, 1974 A series of measurements of trailing vortices behind lifting hydrofoils is described. These measurements were made in the Caltech Free-Surface Water Tunnel, using a laser-Doppler velocimeter to measure two components of velocity in the vortex wake.
Baker, G. R. +3 more
core +1 more source
Nonlinear aeroelastic modeling via conformal mapping and vortex method for a flat-plate airfoil in arbitrary motion [PDF]
, 2016 A nonlinear aerodynamic modeling based on conformal mapping is presented to obtain semi-analytical formulas for the unsteady aerodynamic force and pitching moment on a flat-plate airfoil in arbitrary motion.
Mastroddi, Franco +2 more
core +1 more source
An Estimate of the Gas Transfer Rate from Oceanic Bubbles Derived from Multibeam Sonar Observations of a Ship Wake [PDF]
, 2005 Measurements of gas transfer rates from bubbles have been made in the laboratory, but these are difficult to extrapolate to oceanic bubbles where populations of surfactants and particulate matter that inhibit gas transfer are different.
Bradley, David L +2 more
core +2 more sources
Main rotor-tail rotor intraction and its implications for helicopter directional control [PDF]
, 2008 Aerodynamic interference between the main and tail rotor can have a strong negative influence on the flight mechanics of a conventional helicopter. Significant unsteadiness in the tail rotor loading is encountered under certain flight conditions, but the
Brown, R.E., Fletcher, Timothy M.
core +1 more source
Functions of Perspectival Metadiscourse in Reporting in Literature Reviews? [PDF]
, 2011 An aeroelastic model has been developed to determine the elastic response of sailing yachts’ rigs and sails due to the aerodynamic pressure induced on the sails by the wind. A vortex-lattice method (VLM) is used to determine the aerodynamic pressure. The
Helmstad, Aron, Larsson, Tomas
core +1 more source
Water entry of a flat elastic plate at high horizontal speed [PDF]
, 2013 The two-dimensional problem of an elastic-plate impact onto an undisturbed surface of water of infinite depth is analysed. The plate is forced to move with a constant horizontal velocity component which is much larger than the vertical velocity component
A. A. Korobkin +16 more
core +1 more source
Wake flow past a submerged plate near a free surface
European Journal of Applied MathematicsA wake model is pursued for potential flow past a submerged, finite-length plate that is perpendicular to a uniform, horizontal stream bounded above by a free surface. The effects of gravity are included along the free surface.
E. McLean +2 more
doaj +1 more source
Energies, 2019 The second part of this work describes a wind turbine Computational Fluid Dynamics (CFD) simulation capable of modeling wake effects. The work is intended to establish a computational framework from which to investigate wind farm layout.
Rafael V. Rodrigues, Corinne Lengsfeld
doaj +1 more source