Oğuz Uzol
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View article: Round-Robin test II – wake measurements of porous discs under clearly defined boundary conditions
Round-Robin test II – wake measurements of porous discs under clearly defined boundary conditions Open
Ten international teams participated in a second round-robin test with wake measurements behind two different types of actuator discs focusing on comparability of the experimental boundary conditions. Results show that even for such simple…
View article: A Data‐Driven Approach for the Prediction of Reynolds Number Effects on Wind Turbine Airfoil Aerodynamic Polars
A Data‐Driven Approach for the Prediction of Reynolds Number Effects on Wind Turbine Airfoil Aerodynamic Polars Open
This study presents a data‐driven approach to extrapolate and predict Reynolds number effects on wind turbine airfoil polars. For this purpose, a database is created using experimentally obtained aerodynamic coefficients from open literatu…
View article: Machine Learning Based Predictions of Airfoil Aerodynamic Coefficients for Reynolds Number Extrapolations
Machine Learning Based Predictions of Airfoil Aerodynamic Coefficients for Reynolds Number Extrapolations Open
This study investigates the application of various machine learning (ML) algorithms for predicting two critical aerodynamic coefficients, i.e. the maximum lift coefficient ( C l max ) and the minimum drag coefficient ( C d min ), for wind …
View article: A Data-Driven Approach for the Prediction of Reynolds Number Effects on Wind Turbine Airfoil Aerodynamic Polars
A Data-Driven Approach for the Prediction of Reynolds Number Effects on Wind Turbine Airfoil Aerodynamic Polars Open
This study presents a data-driven approach to extrapolate and predict Reynolds number effects on wind turbine airfoil polars. For this purpose a database is created using experimentally obtained aerodynamic coefficients from open literatur…
View article: Proper Orthogonal Decomposition (POD) of the Wake Flow Field of a Model Wind Turbine and a Porous Disc under Different Freestream Turbulence Intensity Conditions
Proper Orthogonal Decomposition (POD) of the Wake Flow Field of a Model Wind Turbine and a Porous Disc under Different Freestream Turbulence Intensity Conditions Open
The effects of freestream turbulence intensity on the wake development of a model wind turbine and a porous disc are investigated through Proper Orthogonal Decomposition (POD) analysis. The capability of porous discs for reproducing far-wa…
View article: Design of a gust generator and comparison of model wind turbine and porous disc wake flows in a transverse gust
Design of a gust generator and comparison of model wind turbine and porous disc wake flows in a transverse gust Open
This paper outlines the similarities and differences between the wake characteristics of a porous disc and model wind turbine under transverse gust loading which is generated via a two-vane wind tunnel gust generator. Phase-locked two-dime…
View article: Effects of freestream turbulence on the wake growth rate of a model wind turbine and a porous disc
Effects of freestream turbulence on the wake growth rate of a model wind turbine and a porous disc Open
This study presents the results of an experimental investigation that focuses on quantifying the differences between the spreading rates of a model wind turbine wake and a porous disc wake at different freestream turbulence intensity level…
View article: Round-robin tests of porous disc models
Round-robin tests of porous disc models Open
Nine research teams organized a round-robin measurement campaign of the wake of two porous discs in a homogeneous and "low-turbulent' flow. Mean streamwise velocity and turbulence intensity profiles at four diameters downstream of the disc…
View article: Experimental Investigation of the Effects of Winglets on the Tip Vortex Behavior of a Model Horizontal Axis Wind Turbine Using Particle Image Velocimetry
Experimental Investigation of the Effects of Winglets on the Tip Vortex Behavior of a Model Horizontal Axis Wind Turbine Using Particle Image Velocimetry Open
This study presents an experimental investigation on the effects of winglets on the near wake flow around the tip region and on the tip vortex characteristics downstream of a 0.94 m diameter three-bladed horizontal axis wind turbine (HAWT)…
View article: Experimental Study on the Effects of Winglets on the Performance of Two Interacting Horizontal Axis Model Wind Turbines
Experimental Study on the Effects of Winglets on the Performance of Two Interacting Horizontal Axis Model Wind Turbines Open
The focus of this experimental study is to investigate the effects of winglets on the performance of two interacting similar horizontal axis model wind turbines. For this purpose, a downwind winglet is designed and manufactured to be attac…