Rancho Seco building wake effects on atmospheric diffusion: simulation in a meteorological wind tunnel

Technical Report · Fri Feb 01 04:00:00 EST 1980

DOI:https://doi.org/10.2172/5604074· OSTI ID:5604074

Allwine, K J; Meroney, R N; Peterka, J A

Wind tunnel diffusion tests were conducted on 1:500 scale models of the Rancho Seco Nuclear Power Station, California; surrounding buildings, hyperbolic cooling towers, and terrain were similarly modeled in the Meteorological Wind Tunnel at Colorado State University. The purpose was to quantify the effects on diffusion of buildings perturbing the mean flow. The test program consisted of three gaseous tracer releases of gases having no appreciable plume rise from ground, building, and containment vessel top heights. The program was repeated for eight wind directions and cases of unstable, neutral, and stable atmospheric stratification conditions. Results show that the buildings significantly perturb the dispersion patterns from the flat terrain isolated source release case, hence buildings, hyperbolic towers, and terrain in the immediate vicinity of the release have a major effect.

• Research Organization: Colorado State Univ., Fort Collins (USA). Dept. of Civil Engineering
• OSTI ID: 5604074
• Report Number(s): NUREG/CR-1286
• Country of Publication: United States
• Language: English

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