Results 21 to 30 of about 9,547 (313)

Effect of dynamic stall on the aerodynamics of vertical-axis wind turbines [PDF]

open access: yes, 2011
Accurate simulations of the aerodynamic performance of vertical-axis wind turbines pose a significant challenge for computational fluid dynamics methods.
Richard E. Brown   +4 more
core   +1 more source

On the use of load-transformation matrices when working with internal wind tunnel balances [PDF]

open access: yesFME Transactions, 2015
Internal wind tunnel balances are often classified by the design as 'force', 'moment' or 'direct-read' balances. Only the direct-read balances can immediately yield the total loads; with other designs, balance-type-specific transformations of actually ...
Vuković Đorđe, Damljanović Dijana
doaj  

Experimental validation of unsteady models for fluid structure interaction: Application to yacht sails and rigs [PDF]

open access: yes, 2012
• We present full scale measurements on a yacht sailing upwind in moderate head swell • We highlight the unsteadiness of the loads : peaks may be twice the mean value • The dynamic behavior differs from the steady state : hysteresis loop • Experimental ...
AUGIER, Benoit   +3 more
core   +1 more source

Study of the aerodynamic forces evaluation methods [PDF]

open access: yesINCAS Bulletin, 2011
This paper reviews some of the different formulations of the force exerted on a submerged body by the fluid flowing around it. The study is particularly focused on identifying the most appropriate formulations and their inherent assumptions and ...
Stelian GALETUSE, Alexandru FILIP
doaj   +1 more source

Aerodynamics of wind turbines [PDF]

open access: yes, 2011
PhDThe study of rotor blade aerodynamic performances of wind tur- bine has been presented in this thesis. This study was focused on aero- dynamic effects changed by blade surface distribution as well as grid solution along the airfoil.
Emrah Kulunk, Horikiri, Kana
core   +2 more sources

Model-based stagnation pressure control in a supersonic wind tunnel [PDF]

open access: yesFME Transactions, 2016
The flow parameters control in wind tunnels is an area of intense research in recent years, with the aim of improving quality and efficiency of the wind tunnel operation.
Ilić Biljana   +3 more
doaj  

Aerodynamic characteristics and load of aerostats during flight [PDF]

open access: yesTehnika, 2015
Together with increased interest for aircraft type like aerostats, there is a specific need to study and describe the aerodynamics of the aerostat, experimentally as well as analytically and theoretically.
Janković Aleksandar M.   +2 more
doaj   +1 more source

An experimental study of unsteady vehicle aerodynamics [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2001
The transient response of a vehicle to a wind disturbance is of importance to car drivers since low level inputs can result in poor vehicle refinement, and extreme effects can result in path deviation. This paper investigates the use of an oscillating aerofoil gust generator to simulate the transient aerodynamic effects produced on
M. A. Passmore, S Richardson, A Imam
openaire   +1 more source

Modelling the aerodynamics of vertical-axis wind turbines in unsteady wind conditions [PDF]

open access: yes, 2013
Most numerical and experimental studies of the performance of vertical-axis wind turbines have been conducted with the rotors in steady, and thus somewhat artificial, wind conditions - with the result that turbine aerodynamics, under varying wind ...
Scheurich, Frank, Brown, Richard
core   +1 more source

Experimental Investigation of Asymmetric Spinnaker Aerodynamics Using Pressure and Sail Shape Measurements [PDF]

open access: yes, 2014
Combines on-water sail pressure and shape measurements to determine forces International collaboration involving researchers in France and New Zealand First published results of such measurements on asymmetric spinnakers Accuracy of the shape ...
MOTTA, D.   +16 more
core   +1 more source

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