Street canyon flow patterns in a horizontal plane : measurements from the Joint URBAN 2003 field experiment

Conference · Thu Jan 01 04:00:00 EST 2004

OSTI ID:977773

Brown, M J ^[1]; Khalsa, H S ^[2]; Nelson, M A ^[3]; Boswell, D ^[4]

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1. Michael J.
2. Hari S.
3. Matthew Aaron
4. David

As part of the larger Joint URBAN 2003 tracer field experiment performed in Oklahoma City from June 29 to July 30, 2003, a collaborative team of government and university researchers instrumented a downtown street canyon with a high density of wind sensor instrumentation (Brown et al., 2003). The goal of the Park Avenue street canyon experiment was to garner flow field information in order to better understand the transport and dispersion of tracers released in the street canyon and to test and improve the next generation of urban dispersion models. In this paper, we focus on describing the mean flow patterns that developed in the street canyon in a horizontal plane near the surface. We look at the patterns that develop over entire Intensive Operating Periods (IOP's) lasting from 6-9 hours in length, and as a function of inflow wind direction. Most prior street canyon experiments have generally focused on the vertical structure of the flow; this work contributes to the understanding of the horizontal nature of the flow.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 977773
• Report Number(s): LA-UR-04-5127
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ENVIRONMENTAL TRANSPORT
FLOW MODELS
ROADS
URBAN AREAS