A theory of ventilation estimate over hypothetical urban areas.

@article{Liu2015ATO,
  title={A theory of ventilation estimate over hypothetical urban areas.},
  author={Chun-Ho Liu and C Y Ng and Colman C C Wong},
  journal={Journal of hazardous materials},
  year={2015},
  volume={296},
  pages={9-16}
}
Urban roughness is a major factor governing the flows and scalar transport in the atmospheric boundary layer (ABL) but our understanding is rather limited. The ventilation and pollutant removal of hypothetical urban areas consisting of various types of street canyons are examined using computational fluid dynamics (CFD). The aerodynamic resistance, ventilation efficiency, and pollutant removal are measured by the friction factor f, air exchange rate (ACH), and pollutant exchange rate (PCH… CONTINUE READING

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