Results 31 to 40 of about 13,904 (254)

Breakdown of the velocity and turbulence in the wake of a wind turbine – Part 2: Analytical modeling

Wind Energy Science, 2022
Abstract. This work aims at developing an analytical model for the velocity and turbulence in the wake of a wind turbine that takes meandering into account and where the expansion and the meandering of the wake can be independently calibrated. The velocity and turbulence breakdown presented in the companion paper allows a better interpretation of the ...
E. Jézéquel, E. Jézéquel, F. Blondel, V. Masson   +3 more
openaire   +4 more sources

Analytical Modeling of Wind Farms: A New Approach for Power Prediction

Energies, 2016
Wind farm power production is known to be strongly affected by turbine wake effects. The purpose of this study is to develop and test a new analytical model for the prediction of wind turbine wakes and the associated power losses in wind farms.
Amin Niayifar, Fernando Porté-Agel
doaj   +1 more source

Bayesian uncertainty quantification framework for wake model calibration and validation with historical wind farm power data

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, Luca Lanzilao, Johan Meyers   +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, Albert M. Urbán, Søren Juhl Andersen   +2 more
openaire   +4 more sources

Characterization of Wind Turbine Wakes with Nacelle-Mounted Doppler LiDARs and Model Validation in the Presence of Wind Veer

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, Fernando Carbajo Fuertes, Mohsen Vahidzadeh, Corey D. Markfort, Fernando Porté-Agel   +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, Dusan M. Milosevic, Peter G. M. Baltus, Arthur H. M. van Roermund, Guido Dolmans   +4 more
openaire   +1 more source

A double-Gaussian wake model considering yaw misalignment

International Journal of Renewable Energy Development
A wake steering has been known to effectively increase wind farm production by deflecting the upstream turbines’ wakes via yaw misalignment, thus minimizing their negative impacts on the downstream turbines' performances.
Qidun Maulana Binu Soesanto, Qidir Maulana Binu Soesanto, Puji Widiyanto   +2 more
doaj   +1 more source

The Relationship Between Physical Activity and Left Ventricular Remodeling in Childhood Cancer Survivors Treated With Anthracyclines: A Cross‐Sectional Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan, Sitong Chen, F. Lennie Wong, Nathan Young, Anna Qi, Christopher Davis, Sanjeet Hegde, Nicholas Gloude, Kasey J. Leger, Kelly D. Getz, Francisco Contijoch, Kirsten Ness, Bonnie Ky, Dennis Kuo, Sheri J. Hartman, Saro H. Armenian   +15 more
wiley   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source