Experimental determination of the onset of turbulence on inclined plates using hot wire velocity measurements

Rodríguez Sevillano, Angel and Pérez Grande, María Isabel and Meseguer Ruiz, José (2010). Experimental determination of the onset of turbulence on inclined plates using hot wire velocity measurements. In: "11th International Conference on Advanced Computational Methods and Experimental Measurements in Heat Transfer 2010", 14/07/2010 - 16/07/2010, Tallín, Estonia. ISBN 978-1-84564-462-8.

Description

Title: Experimental determination of the onset of turbulence on inclined plates using hot wire velocity measurements
Author/s:
  • Rodríguez Sevillano, Angel
  • Pérez Grande, María Isabel
  • Meseguer Ruiz, José
Item Type: Presentation at Congress or Conference (Article)
Event Title: 11th International Conference on Advanced Computational Methods and Experimental Measurements in Heat Transfer 2010
Event Dates: 14/07/2010 - 16/07/2010
Event Location: Tallín, Estonia
Title of Book: Proceedings of the 11th International Conference on Advanced Computational Methods and Experimental Measurements in Heat Transfer 2010
Date: 2010
ISBN: 978-1-84564-462-8
Subjects:
Freetext Keywords: mirror seeing, turbulence onset, natural convection.
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The problem of determination of the turbulence onset in natural convection on heated inclined plates in an air environment has been experimentally revisited. The transition has been detected by using hot wire velocity measurements. The onset of turbulence has been considered to take place where velocity fluctuations (measured through turbulence intensity) start to grow. Experiments have shown that the distance to the plate edge where the onset begins depends both on the plate inclination angle and the plate temperature, and thus on the Grashof number defined in terms of the temperature difference between the heated plate and the surrounding air. An experimental setup to measure the above mentioned distance has been developed. In this paper, such an apparatus is presented, as well as the experimental procedure and some experimental results.

More information

Item ID: 7591
DC Identifier: http://oa.upm.es/7591/
OAI Identifier: oai:oa.upm.es:7591
Official URL: http://www.wessex.ac.uk/10-conferences/heat-transfer-2010.html
Deposited by: Memoria Investigacion
Deposited on: 06 Jul 2011 10:17
Last Modified: 20 Apr 2016 16:41
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