Pressure measurements of the detachment bubble on the Bolund Island

Yeow, Tee Seong and Cuerva Tejero, Alvaro and Pérez Álvarez, Javier (2011). Pressure measurements of the detachment bubble on the Bolund Island. In: "International Workshop on Physical Modelling of Flow and Dispersion Phenomena, PHYSMOD 2011", 22/08/2011 - 24/08/2011, Hamburgo, Alemania.

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: International Workshop on Physical Modelling of Flow and Dispersion Phenomena, PHYSMOD 2011
Event Dates: 22/08/2011 - 24/08/2011
Event Location: Hamburgo, Alemania
Title of Book: Proceedings of the International Workshop on Physical Modelling of Flow and Dispersion Phenomena, PHYSMOD 2011
Date: 2011
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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: 12559
DC Identifier: http://oa.upm.es/12559/
OAI Identifier: oai:oa.upm.es:12559
Official URL: http://www.physmod.org/
Deposited by: Memoria Investigacion
Deposited on: 03 Aug 2012 11:44
Last Modified: 21 Apr 2016 11:49
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