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Spatial correlation from the SPIV database of the WALLTURB experiment

J. M. Foucaut ; S. Coudert ; M. Stanislas ; J. Delville ; M. Tutkun ; William K. George (Institutionen för tillämpad mekanik, Strömningslära)
International Workshop on Understanding and Modelling of Wall Turbulence, 2009, Lille, France, 21-23 April (13824309 ). Vol. 14 (2011), p. 85-93.
[Konferensbidrag, refereegranskat]

An original experiment has been performed in the frame of the WALLTURB EC project. In this experiment a specific set-up of SPIV allows to compute the full 3D tensor of velocity spatial correlation by using the homogeneity of the flow. The two-point correlations are tools to study the coherence of a flow. Stanislas et al. (C. R. Acad. Sci. Paris 2b 327:55–61, 1999) and Kahler (Exp. Fluids 36:114–130, 2004) showed that double spatial correlations, computed from Particle Image Velocimetry (PIV) fields, allow a better understanding of the turbulent flow organization.



Denna post skapades 2016-06-14.
CPL Pubid: 237682

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära

Ämnesområden

Strömningsmekanik och akustik

Chalmers infrastruktur