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Measurements of Turbulent Quantities in Complex Three-Dimensional Boundary Layer Flow

Lennart Löfdahl (Institutionen för termo- och fluiddynamik) ; T.V. Truong (Institutionen för termo- och fluiddynamik) ; Julius Bruns (Institutionen för termo- och fluiddynamik)
Experiments in Fluids Vol. 17 (1995), p. 335-342.
[Artikel, refereegranskad vetenskaplig]

Measurements of the Reynolds stress tensor have been conducted with different techniques in the complex turbulent boundary layer of a curved duct, where the flow is changing from two-dimensional into a fully three-dimensional condition. Single-, cross- and triple hot-wire probes and a silicon based double-chip sensor were employed for measurements at a Reynolds unit number of 8 per meter. The Reynolds stresses were measured at a reference station in the two-dimensional part of the duct, and at five stations in the three-dimensional flow. Profiles of the different techniques were compared, and a good agreement was generally obtained between the investigated methods; however, deviations in certain parts of the profiles, due to prongs, probe body interference and influence of the size of the measuring volume were noted.



Denna post skapades 2010-08-23.
CPL Pubid: 125062

 

Institutioner (Chalmers)

Institutionen för termo- och fluiddynamik (1989-2004)

Ämnesområden

Strömningsmekanik

Chalmers infrastruktur