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Memorias de investigación
Communications at congresses:
Experimental determination of the onset of turbulence on inclined plates using hot wire velocity measurements
Year:2010
Research Areas
  • Aeronautical engineering
Information
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 plate edge where the onset begins depends both on the plate inclination angle and the plate temperature, 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.
International
Si
Congress
11th International Conference on Advanced Computational Methods and Experimental Measurements in Heat Transfer
960
Place
Tallinn, Estonia
Reviewers
Si
ISBN/ISSN
978-1-84564-462-8
Start Date
14/07/2010
End Date
16/07/2010
From page
147
To page
156
WIT Transactions on Engineering Sciences, Vol 68
Participants
  • Autor: Angel Antonio Rodriguez Sevillano (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Sistemas dinámicos
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