Physical experiments to investigate the effects of street bottom heating and inflow turbulence on urban street-canyon flow
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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 wordsurban street-canyon flow street bottom heating inflow turbulence circulating water channel
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- Brown, M. J., R. E. Lawson Jr., D. S. DeCroix, and R. L. Lee, 2000: Mean flow and turbulence measurements around a 2-D array of buildings in a wind tunnel.11th Conf. on the Applications of Air Pollution Meteorology with A &WMA, Long Beach, CA, Amer. Meteor. Soc., 35–40.Google Scholar
- Wedding, J. B., D. J. Lombardi, and J. E. Cermak, 1977: A wind tunnel study of gaseous pollutants in city street canyons.J. Air Pollut. Control Assoc.,27, 557–566.Google Scholar