Wind turbines in series; A parametric analysis

Hancock, PE (2013) Wind turbines in series; A parametric analysis Wind Engineering, 37 (1). pp. 37-58.

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Abstract

An analysis is made of wind turbines in a row by means of an extension to actuator disk theory and a representation of the turbulent diffusion in the wake by a velocity deficit scale and a single free parameter. Beyond this, no wake model is used. It is shown that when the thrust coefficient is 'high' a maximisation of overall power output leads to a large drop in power after the first turbine, followed by a fairly constant level and a rise at the end of the row; this behaviour is a natural consequence of optimisation, and on this basis a 'deep array effect' is to be expected. A variation of turbine size and the effect of impaired turbine performance are examined. The approach can also be used to calculate the turbine upstream velocity (with respect to a reference) from a distribution of measured power output and to make inferences about wake development. The approach could be useful in the assessment of wake models as well as turbine operation.

Item Type:	Article
Subjects :	Mechanical Engineering Sciences
Divisions :	Surrey research (other units)
Authors :	Hancock, PE
Date :	1 February 2013
DOI :	10.1260/0309-524X.37.1.37
Copyright Disclaimer :	Copyright 2013 Sage Publications
Depositing User :	Symplectic Elements
Date Deposited :	03 Nov 2016 11:18
Last Modified :	24 Jan 2020 13:00
URI:	http://epubs.surrey.ac.uk/id/eprint/812200

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