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Conference Paper: Street-canyon ventilation and pollutant removal estimate
| Title | Street-canyon ventilation and pollutant removal estimate |
|---|---|
| Authors | |
| Issue Date | 2013 |
| Citation | The 2013 European and African Conference on Wind Engineering (EACWE 2013), Cambridge, UK., 7-11 July 2013. How to Cite? |
| Abstract | The correlations among air exchange rate (ACH), pollutant exchange rate (PCH) and friction factor (f) are proposed to evaluate the performance of ventilation and pollution removal of street canyons of different building-height-to-street-width (aspect) ratios (ARs) and building shapes in this paper. Hypothetical urban areas were simplified to computational domains consisting of idealized two-dimensional (2D) street canyons and the Reynolds-averaged Navier-Stokes (RANS) equations with the Renormalization Group (RNG) k-є turbulence model were adopted in the mathematical modelling. It is found that the turbulent components of ACH and PCH are closely related to f while their mean components are rather extraneous. |
| Persistent Identifier | http://hdl.handle.net/10722/190046 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | NG, CT | en_US |
| dc.contributor.author | Liu, CH | en_US |
| dc.date.accessioned | 2013-09-17T15:04:43Z | - |
| dc.date.available | 2013-09-17T15:04:43Z | - |
| dc.date.issued | 2013 | en_US |
| dc.identifier.citation | The 2013 European and African Conference on Wind Engineering (EACWE 2013), Cambridge, UK., 7-11 July 2013. | en_US |
| dc.identifier.uri | http://hdl.handle.net/10722/190046 | - |
| dc.description.abstract | The correlations among air exchange rate (ACH), pollutant exchange rate (PCH) and friction factor (f) are proposed to evaluate the performance of ventilation and pollution removal of street canyons of different building-height-to-street-width (aspect) ratios (ARs) and building shapes in this paper. Hypothetical urban areas were simplified to computational domains consisting of idealized two-dimensional (2D) street canyons and the Reynolds-averaged Navier-Stokes (RANS) equations with the Renormalization Group (RNG) k-є turbulence model were adopted in the mathematical modelling. It is found that the turbulent components of ACH and PCH are closely related to f while their mean components are rather extraneous. | - |
| dc.language | eng | en_US |
| dc.relation.ispartof | European and African Conference on Wind Engineering, EACWE 2013 | en_US |
| dc.title | Street-canyon ventilation and pollutant removal estimate | en_US |
| dc.type | Conference_Paper | en_US |
| dc.identifier.email | Liu, CH: chliu@hku.hk | en_US |
| dc.identifier.authority | Liu, CH=rp00152 | en_US |
| dc.description.nature | postprint | - |
| dc.identifier.hkuros | 224519 | en_US |
| dc.customcontrol.immutable | sml 140415 | - |