Journal ArticleDOI
Unsteady actuator disc model for horizontal axis wind turbines
Jens Nørkær Sørensen,Asger Myken +1 more
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TLDR
In this article, a non-linear and unsteady actuator disc model for horizontal axis wind turbines is presented, which consists of a finite-difference solution of the axisymmetric Euler equations in a vorticity-stream function formulation.About:
This article is published in Journal of Wind Engineering and Industrial Aerodynamics.The article was published on 1992-01-01. It has received 185 citations till now. The article focuses on the topics: Turbine & Euler equations.read more
Citations
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Wind turbine wake aerodynamics
TL;DR: In this article, the aerodynamic properties of wind turbine wakes are studied, focusing on the physics of power extraction by wind turbines, and the main interest is to study how the far wake decays downstream in order to estimate the effect produced in downstream turbines.
Journal ArticleDOI
Numerical modeling of wind turbine wakes
TL;DR: An aerodynamical model for studying three-dimensional flow fields about wind turbine rotors is presented, which serves in particular to analyze and verify the validity of the basic assumptions employed in the simple engineering models.
Journal ArticleDOI
State of the art in wind turbine aerodynamics and aeroelasticity
Martin Otto Laver Hansen,Jens Nørkær Sørensen,Spyros G. Voutsinas,Niels N. Sørensen,Niels N. Sørensen,H. Aa. Madsen +5 more
TL;DR: In this article, a comprehensive review of wind turbine aeroelasticity is given, starting with the simple aerodynamic Blade Element Momentum Method and ending with giving a review of the work done applying CFD on wind turbine rotors.
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Review of computational fluid dynamics for wind turbine wake aerodynamics
TL;DR: In this paper, the state-of-the-art numerical calculation of wind turbine wake aerodynamics is presented, where different computational fluid dynamics techniques for modeling the rotor and the wake are discussed.
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Tip loss corrections for wind turbine computations
TL;DR: In this paper, a new tip loss correction model is proposed to remedy the inconsistency of the existing tip loss corrections, which failed to predict correctly the physical behavior in the proximity of the tip.
References
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Journal ArticleDOI
The Numerical Solution of Parabolic and Elliptic Differential Equations
D. W. Peaceman,H. H. Rachford +1 more
On the limitations of Froude's actuator disc concept
Abstract: • A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.
Journal ArticleDOI
On the edge singularity of an actuator disk with large constant normal load
G H Schmidt,J. A. Sparenberg +1 more
TL;DR: In this article, a general formulation of the problem for a prescribed load on a curved surface is given for the special case of constant normal load and no incoming velocity, where the singular behavior of the flow at the edge of the disk is discussed.
Journal ArticleDOI
Line momentum source in shallow inviscid fluid
TL;DR: In this paper, a line momentum source is simulated by an array of closely spaced, aligned, turbulent, incompressible jets, and the two resulting nonlinear singular integral equations are solved numerically using a Newton-Raphson-type iterative collocation method.