Publication Abstracts

Delo et al. 2004

Delo, C.J., R.M. Kelso, and A.J. Smits, 2004: Three-dimensional structure of a low-Reynolds-number turbulent boundary layer. J. Fluid Mech., 512, 47-83, doi:10.1017/S0022112004009693.

A low-Reynolds-number zero-pressure-gradient incompressible turbulent boundary layer was investigated using a volumetric imaging technique. The Reynolds number based on momentum thickness was 700. The flow was tagged with a passive scalar from two spanwise dye slots to distinguish between fluid motions originating in the inner and outer portions of the boundary layer. The resulting volumetric scalar field was interrogated using a laser sheet scanner developed for this study. Two- and three-dimensional time-dependent visualizations of a 50 volume time series are presented (equivalent to 17δ in length). In the outer portion of the boundary layer, scalar structures were observed to lie along lines in the (x, z)-plane, inclined to the streamwise (x-)direction in the range ±50°. The ejection of brightly dyed fluid packets from the near-wall region was observed to be spatially organized, and related to the passage of the large-scale scalar structures.

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BibTeX Citation

@article{de01600j,
  author={Delo, C. J. and Kelso, R. M. and Smits, A. J.},
  title={Three-dimensional structure of a low-Reynolds-number turbulent boundary layer},
  year={2004},
  journal={J. Fluid Mech.},
  volume={512},
  pages={47--83},
  doi={10.1017/S0022112004009693},
}

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RIS Citation

TY  - JOUR
ID  - de01600j
AU  - Delo, C. J.
AU  - Kelso, R. M.
AU  - Smits, A. J.
PY  - 2004
TI  - Three-dimensional structure of a low-Reynolds-number turbulent boundary layer
JA  - J. Fluid Mech.
VL  - 512
SP  - 47
EP  - 83
DO  - 10.1017/S0022112004009693
ER  -

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