Atmospheric boundary layer testing: hot-wire anemometry measurements of turbulent boundary layer flow past a two-dimensional obstacle. 1982-1983 equipment loan report. Supplement 2

Technical Report · Thu Nov 01 04:00:00 EST 1984

OSTI ID:5560732

White, B R; Strataridakis, C J

Measurements of a zero-pressure-gradient turbulent boundary layer flow past a two-dimensional obstacle were made in the present study. Measurements were made for both smooth and rough surfaces using single and X hot-wire probes. The Reynolds number based on obstacle height and freestream velocity was about 15,302. Profiles of mean velocity, turbulent intensity and probability density functions in two dimensions were determined. Also, Reynolds stress profiles, energy spectra and second moments of energy spectra were obtained. From the results evidence emerged that upstream, over, and downstream of the obstacle there zones of recirculating flow. The flow-field was dominated by the obstacle presence, such that no distinction between smooth-and rough-surface measurements could be made.

• Research Organization: California Univ., Davis (USA). Dept. of Mechanical Engineering
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5560732
• Report Number(s): UCRL-15475-Suppl.2; ON: DE85012875
• Country of Publication: United States
• Language: English

Related Subjects

500100* -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
BOUNDARY LAYERS
EARTH ATMOSPHERE
LAYERS
MATHEMATICAL MODELS
TUNNELS
TURBULENCE
TWO-DIMENSIONAL CALCULATIONS
UNDERGROUND FACILITIES
WIND TUNNELS