Some exemplary PIV results - PIV Book Digital Content

Turbulent boundary layer recorded with Stereo PIV

Fig.1.18: Instantaneous flow velocity field of turbulent boundary layer, U=3m/s, the mean velocity profile has been subtracted to display the turbulent velocity fluctuations, the out-of-plane velocity component is color coded.

Reference: Kähler, C.J. (2004): The significance of coherent flow structures for the turbulent mixing in wall-bounded flows. Ph.D. thesis, Georg-August-University zu Göttingen (Germany).

http://hdl.handle.net/11858/00-1735-0000-0006-B4C8-8

DLR-FB-2004-2

Turbulent boundary layer recorded with Tomographic PIV

Fig.1.20: Instantaneous velocity vector volume of a turbulent boundary layer flow at Re_theta=2460 obtained with tomographic-PIV overlaid with swirl strength surfaces.

Reference: Schröder A, Geisler R, Staack K, Elsinga GE, Scarano F, Wieneke B, Henning A, Poelma C, Westerweel J (2011): Eulerian and Lagrangian views of a turbulent boundary layer flow using time-resolved tomographic PIV. Exp. Fluids 50(4),1071–1091, https://dx.doi.org/10.1007/s00348-010-1014-x

Turbulent boundary layer recorded with the Shake-the-Box technique (STB)

Fig. 1.21: Instantaneous velocity vector volume within the turbulent boundary layer flow obtained with Lagrangian Tracking Velocimetry (PLT) using STB; particle velocity is color coded (see Sect.18.2 for details).

More information about Shake-The-Box and 3D Lagrangian Particle Tracking at high Particle Densities (with animation of results as presented in Fig. 1.21) can be found at
http://www.dlr.de/as/en/desktopdefault.aspx/tabid-183/251_read-44975/