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Memorias de investigación
Communications at congresses:
Effects of hot-wire measurement in wall-bounded flows studied via direct numerical simulation
Year:2013
Research Areas
  • Turbulence
Information
Abstract
The effect of limited spatial and temporal resolution for hot-wire anemometry is investigated using recent DNSes of a zero- pressure-gradient turbulent boundary layer in the range of Re?=4000-6500, and channels at comparable Re?. Different spanwise filters are applied to the different velocity components to reproduce the effect of finite wire lengths. Results show that the streamwise turbulent energy at the buffer layer is severely attenuated, while the logarithmic and outer regions are less sensitive to the length of the wire. Attenuation of the streamwise energy seems to be Reynolds independent for the present range of Reynolds numbers, and spectral results are used to predict what the behavior will be beyond that range.
International
Si
Congress
European Turbulence Conference 14 (ETC-14)
960
Place
Lyon, Francia
Reviewers
No
ISBN/ISSN
Start Date
01/09/2013
End Date
04/09/2013
From page
1
To page
2
Participants
  • Autor: Juan Antonio Sillero Sepúlveda (UPM)
  • Autor: Javier Jimenez Sendin (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Mecánica de Fluidos Computacional
  • Departamento: Motopropulsión y Termofluidodinámica
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