In this article, flow and dispersion of pollution in hilly terrain was investigated experimentally in the wind tunnel. A turbulent boundary layer flow was simulated as the approaching flow which passed over the hilly model. Tufts visualization was employed to obtain the wind field of mean flow direction. Methane mixed with pure air was chosen as the tracer for studying stack plume dispersion. Tufts visualization results showed the wind field of mean flow direction which revealed how the winds were flowing over the hilly terrain model for various wind directions. Reversed flows were observed at the region of leeside of main hills or mountains of the terrain model. The plume average height increased with increase in the topography change parameter of the hilly terrain. When varying the topography change parameter of flat terrain into hilly terrain, the plume vertical dispersion parameter increased, accordingly.View full textDownload full textKeywordshilly terrain, vertical dispersion parameter, Gaussian plume, tuft visualization, turbulent boundary layer flowRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/02533839.2011.565615
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