Advances in Atmospheric Sciences

, Volume 22, Issue 2, pp 230–237 | Cite as

Physical experiments to investigate the effects of street bottom heating and inflow turbulence on urban street-canyon flow

  • Jae-Jin Kim
  • Jong-Jin Baik


The effects of street bottom heating and inflow turbulence on urban street-canyon flow are experimentally investigated using a circulating water channel. Three experiments are carried out for a street canyon with a street aspect ratio of 1. Results from each experiment with bottom heating or inflow turbulence are compared with those without bottom heating and appreciable inflow turbulence. It is demonstrated that street bottom heating or inflow turbulence increases the intensity of the canyon vortex. A possible explanation on how street bottom heating or inflow turbulence intensifies the canyon vortex is given from a fluid dynamical viewpoint.

Key words

urban street-canyon flow street bottom heating inflow turbulence circulating water channel 


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Copyright information

© Advances in Atmospheric Sciences 2003

Authors and Affiliations

  • Jae-Jin Kim
    • 1
  • Jong-Jin Baik
    • 2
  1. 1.Climate Environment System Research CenterSeoul National UniversitySeoulKorea
  2. 2.School of Earth and Environmental SciencesSeoul National UniversitySeoulKorea

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