Journal
EXPERIMENTS IN FLUIDS
Volume 55, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1007/s00348-014-1737-1
Keywords
-
Categories
Funding
- US Department of Energy [DE-EE0002980]
Ask authors/readers for more resources
We present an implementation of super-large-scale particle image velocimetry (SLPIV) to characterize spatially the turbulent atmospheric boundary layer using natural snowfall as flow tracers. The SLPIV technique achieves a measurement area of similar to 22 m 9 52 m, up to 56 m above the ground, with a spatial resolution of similar to 0.34 m. The traceability of snow particles is estimated based on their settling velocity obtained from the wall-normal component of SLPIV velocity measurements. The results are validated using coincident measurements from sonic anemometers on a meteorological tower situated in close proximity to the SLPIV sampling area. A contrast of the mean velocity and the streamwise Reynolds stress component obtained from the two techniques shows less than 3 and 12 % difference, respectively. Additionally, the turbulent energy spectra measured by SLPIV show a similar inertial subrange and trends when compared to those measured by the sonic anemometers.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available