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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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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

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