Results 51 to 60 of about 15,291 (184)
Wind Energy, 2023 The expected growth in wind energy capacity requires efficient and accurate models for wind farm layout optimization, control, and annual energy predictions. Although analytical wake models are widely used for these applications, several model components
Frederik Aerts +2 more
doaj +1 more source
A simple vortex model applied to an idealized rotor in sheared inflow [PDF]
Wind Energy Science, 2023 A simple analytical vortex model is presented and used to study an idealized wind turbine rotor in uniform and sheared inflow, respectively. Our model predicts that 1D momentum theory should be applied locally when modelling a non-uniformly loaded rotor ...
M. Gaunaa, N. Troldborg, E. Branlard
doaj +1 more source
Analytical model for the power-yaw sensitivity of wind turbines operating in full wake [PDF]
Wind Energy Science, 2019 Abstract. Wind turbines are designed to align themselves with the incoming wind direction. However, turbines often experience unintentional yaw misalignment, which can significantly reduce the power production. The unintentional yaw misalignment increase for turbines operating in wake of upstream turbines.
Jaime Liew +2 more
openaire +4 more sources
Remote Sensing, 2019 Accurate prediction of wind turbine wakes is important for more efficient design and operation of wind parks. Volumetric wake measurements of nacelle-mounted Doppler lidars are used to characterize the wake of a full-scale wind turbine and to validate an
Peter Brugger +4 more
doaj +1 more source
Analytical Models for the Wake-Up Receiver Power Budget for Wireless Sensor Networks [PDF]
GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, 2009 In this paper analytical models of the energy consumption are presented which uses a real world radio model with two different low power modes. This model is used to compare energy consumption of different MAC protocols. The MAC protocols used for the comparison are chosen with sensor networks is mind.
Maarten Lont +4 more
openaire +1 more source
Wake dynamics and rotor-fuselage aerodynamic interactions
, 2009 The unsteady loads experienced by a helicopter are known to be strongly influenced by aerodynamic interactions between the rotor and fuselage; these unsteady loads can lead to deficiencies in handling qualities and unacceptable vibratory characteristics ...
Brown, R.E., Kenyon, A.R.
core +1 more source
Analytical solution for the cumulative wake of yawed wind turbines
, 2022 This thesis sets out to improve the physical grounding and predictive accuracy of cumulative wake effect modelling within wind farms with yawed turbines. It derives an analytical solution for the lateral velocity field within a wind farm and compares its
Gaukroger, Nils (author)
core
, 2013 This paper discusses wake-induced transverse vibration of two interfering cylinders in tandem ...
Narakorn Srinil +3 more
core +1 more source
Non-linear unsteady aerodynamic model for insect-like flapping wings in the hover. Part 1: Methodology and analysis [PDF]
, 2006 The essence of this two-part paper is the analytical, aerodynamic modelling of insect-like flapping wings in the hover for microair vehicle applications.
Knowles, Kevin +2 more
core +1 more source
Wake steering of multirotor wind turbines
Wind Energy, 2021 In this paper, wake steering is applied to multirotor turbines to determine whether it has the potential to reduce wind plant wake losses. Through application of rotor yaw to multirotor turbines, a new degree of freedom is introduced to wind farm control
Gustav A. Speakman +3 more
doaj +1 more source