the shape of wake behind a wind turbine is normally assumed to have a hat shape for the models used in wind farm layout optimization purposes; however, it is know from experimental tests and numerical simulations that this is not a real assumption. in reality, the results of actual measurements and detailed numerical simulation show that the velocity in wake region has a s-shape profile. the pr...

Related DatabasesWeb of Science You must be logged in with an active subscription to view this.Article DataHistorySubmitted: 1 May 2020Accepted: 30 August 2021Published online: 07 December 2021Keywordsturbine design, blade element momentum theory, computational fluid dynamics, geometry modeling, wind turbine aerodynamics, fluid-structure interactionAMS Subject Headings76G25, 76M99, 65Z05Publica...

This article proposes an efficient correction model that enables the extension of blade element momentum method (BEM) for swept blades. Standard BEM algorithms, assuming a straight in rotor plane, cannot account changes induction system introduced by sweep. The proposed corrects axial regarding two aspects: azimuthal displacement trailed vorticity and curved bound vortex on itself. extended alg...

This paper presents a combined blade element (BE), computational fluid dynamics (CFD) method for performance analysis and optimization of ducted turbines. The model is similar to standard blade element momentum theory, except that CFD replaces the momentum equation for determining the induction factors. This eliminates many assumptions used in applying the typical blade element momentum (BEM) t...

In this research paper, the aerodynamic performance of blade horizontal axis wind turbine has been investigated numerically based on Blade Element Momentum (BEM) method. The in analysis is divided into several computational elements, where assumed no interaction between elements. primary objective to analyze under certain initial and boundary conditions. addition investigate effect geometrical ...

The shape of wake behind a wind turbine is normally assumed to have a hat shape for the models used in wind farm layout optimization purposes; however, it is know from experimental tests and numerical simulations that this is not a real assumption. In reality, the results of actual measurements and detailed numerical simulation show that the velocity in wake region has a S-shape profile. Th...

Abstract The BEM method is extensively used for analyzing the aerodynamic performance of wind turbines and marine propellers. It computationally fast easily implemented while it can give fairly accurate results. Application to predict forces acting on rotor blades a model scale axial shaft-driven Counter-Rotating Pump-Turbine (CRPT) investigated. Some modifications have been proposed adopt clas...