WIND TUNNEL TEST OF CONCENTRATION FIELDS AROUND STREET CANYONS WITHIN THE STRATIFIED URBAN CANOPY LAYER : Experimental studies on gaseous diffusion in urban areas Part 3

温度成層流中のストリートキャニオン内の濃度分布に関する風洞実験 : 市街地における汚染物の拡散に関する実験的研究 その3

Results of wind tunnel experiments on the concentration fields within urban street canyons are presented. The concentrations within such canyons are highly dependent on stability conditions. Even in a street, parallel to the wind direction, reverse flow seems to occur except under very stable stratified conditions. The mean concentration within the street canyon can be estimated from the pollutant exhaust flux, the flow rate of the cavity eddy and the recirculation ratio of pollutant. Concentrations estimated from the Stanford Research Institute (SRI) street canyon model are roughly in agreement with wind tunnel results and the coefficients used in the model can be estimated from measurements of the flow field in the canyon.

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  • Accession Number: 01631640
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: Mar 31 2017 5:09PM