Pressure measurements of the detachment bubble on the Bolund Island

Yeow, Tee Seong and Cuerva Tejero, Alvaro and Pérez Álvarez, Javier (2012). Pressure measurements of the detachment bubble on the Bolund Island. In: "EWEA 2012 proceeding", 16/04/2012 - 19/04/2012, Copenhagen. ISBN 978-1-62748-291-2. pp. 1552-1562.

Description

Title: Pressure measurements of the detachment bubble on the Bolund Island
Author/s:
  • Yeow, Tee Seong
  • Cuerva Tejero, Alvaro
  • Pérez Álvarez, Javier
Item Type: Presentation at Congress or Conference (Article)
Event Title: EWEA 2012 proceeding
Event Dates: 16/04/2012 - 19/04/2012
Event Location: Copenhagen
Title of Book: EWEA 2012 proceeding
Date: 16 April 2012
ISBN: 978-1-62748-291-2
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (690kB)

Abstract

Pressure measurements on the surface of a 1:230 scale model of Bolund Island are presented. The model is smooth and no boundary layer generation has been considered since the experiment is designed as the simplest possible reference case. Measurement have been taken for a range of Reynolds numbers based on the average undisturbed wind speed U? and the maximum height of the island, h [1.7×104 , 8.5×104], and for a range of wind directions. Four minutes time series of pressure in more than 400 points have been acquired and analysed to obtain the spatial distribution of both the time average and the variance of the pressure signal. The horizontal extension of the detachment bubble for the different Reynolds numbers and wind directions is identified by isobars and curves of constant value of pressure variance. The applicability of this technique for evaluating the horizontal topology of high turbulence regions associated to detachment bubbles after escarpments in potential wind farm sites is analysed. The results obtained shows that the behaviour of the mean pressure coefficient, Cp, the std. pressure coefficient, C?p, and the skewness of the pressure, Sp can be used to study the bubble over the island to a certain extent. This experiment is part of the set of different analysis on the Bolund test case that is being undertaken within WAUDIT project by the different scientific groups.

More information

Item ID: 25929
DC Identifier: http://oa.upm.es/25929/
OAI Identifier: oai:oa.upm.es:25929
Official URL: http://www.ewea.org/annual2012/conference/conference-proceedings/
Deposited by: Memoria Investigacion
Deposited on: 16 May 2014 15:51
Last Modified: 22 Sep 2014 11:39
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM