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A comparison of Three Different Hot-Wire Techniques for the Detemination of the Reynolds Stress Tensor

Lennart Löfdahl (Institutionen för tillämpad termodynamik och strömningslära) ; Erik Olsson (Institutionen för tillämpad termodynamik och strömningslära)
European Mechanics Colloquium 202 on “Measurement Techniques in Low-Speed Turburlent Flows" (1985)
[Konferensbidrag, refereegranskat]

Three different hot-wire techniques for the determination of the Reynolds stress tensor sre compared in a two-dimensional flat plate boundary layer. The considered hot-wire techniques are the method of rotated-, single-, cross- and triple-wire. From the measurements it can be concluded that the –puv shear stress and pw2 normal stress can be determined fairly well with all three methods. However, deviations occur in the pv2 normal stress. It is also shown that these deviations may partly be explained by the energy content between 5-10 kHz of the pv2 normal stress.



Denna post skapades 2010-08-27. Senast ändrad 2010-10-25.
CPL Pubid: 125264

 

Institutioner (Chalmers)

Institutionen för tillämpad termodynamik och strömningslära (1957-1989)

Ämnesområden

Strömningsmekanik

Chalmers infrastruktur