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

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Abstract

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.

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References

  • Baik, J.-J., and J.-J. Kim, 1999: A numerical study of flow and pollutant dispersion characteristics in urban street canyons.J. Appl. Meteor.,38, 1576–1589.

    Article  Google Scholar 

  • Baik, J.-J., R.-S. Park, H.-Y. Chun, and J.-J. Kim, 2000: A laboratory model of urban street-canyon flows.J. Appl. Meteor.,39, 1592–1600.

    Article  Google Scholar 

  • Barnes, S. L., 1964: A technique for maximizing details in numerical weather map analysis.J. Appl. Meteor.,3, 396–409.

    Article  Google Scholar 

  • 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.

  • DePaul, F. T., and C. M. Sheih, 1985: A tracer study of dispersion in an urban street canyon.Atmos. Environ.,19, 555–559.

    Article  Google Scholar 

  • DePaul, F. T., and C. M. Sheih, 1986: Measurements of wind velocities in a street canyon.Atmos. Environ.,20, 455–459.

    Article  Google Scholar 

  • Gayev, Y. A., and E. Savory, 1999: Influence of street obstructions on flow processes within urban canyons.Journal of Wind Engineering and Industrial Aerodynamics,82, 89–103.

    Article  Google Scholar 

  • Kim, J.-J., and J.-J. Baik, 1999: A numerical study of thermal effects on flow and pollutant dispersion in urban street canyons.J. Appl. Meteor.,38, 1249–1261.

    Article  Google Scholar 

  • Kim, J.-J., and J.-J. Baik, 2001: Urban street-canyon flows with bottom heating.Atmos. Environ.,35, 3395–3404.

    Article  Google Scholar 

  • Lee, I. Y., and H. M. Park, 1994: Parameterization of the pollutant transport and dispersion in urban street canyons.Atmos. Environ.,28, 2343–2349.

    Article  Google Scholar 

  • Leriche, E., and S. Gavrilakis, 2000: Direct numerical simulation of the flow in a lid-driven cubical cavity.Physics of Fluids,12, 1363–1376.

    Article  Google Scholar 

  • Liu, H. Z., B. Liang, F. R. Zhu, B. Y. Zhang, and J. G. Sang, 2003: A laboratory model for the flow in urban street canyons induced by bottom heating.Adv. Atmos. Sci.,20, 554–564.

    Article  Google Scholar 

  • Meroney, R. N., M. Pavageau, S. Rafailidis, and M. Schatzmann, 1996: Study of line source characteristics for 2D physical modelling of pollutant dispersion in street canyons.Journal of Wind Engineering and Industrial Aerodynamics,62, 37–56.

    Article  Google Scholar 

  • Odell, G. M., and L. S. G. Kovasznay, 1971: A new type of water channel with density stratification.J. Fluid Mech.,50, 535–543.

    Article  Google Scholar 

  • Pan, F., and A. Acrivos, 1967: Steady flows in rectangular cavities.J. Fluid Mech.,28, 643–655.

    Article  Google Scholar 

  • Ramanan, N., and G. M. Homsy, 1994: Linear stability of lid-driven cavity flow.Physics of Fluids,6, 2690–2701.

    Article  Google Scholar 

  • Sini, J.-F., S. Anquetin, and P. G. Mestayer, 1996: Pollutant dispersion and thermal effects in urban street canyons.Atmos. Environ.,30, 2659–2677.

    Article  Google Scholar 

  • Tampieri, F., and J. C. R. Hunt, 1985: Two-dimensional stratified fluid flow over valleys: Linear theory and a laboratory investigation.Bound.-Layer Meteor.,32, 257–279.

    Article  Google Scholar 

  • Uehara, K., S. Murakami, S. Oikawa, and S. Wakamatsu, 2000: Wind tunnel experiments on how thermal stratification affects flow in and above urban street canyons.Atmos. Environ.,34, 1553–1562.

    Article  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 

  • Zhang, Y. Q., A. H. Huber, S. P. S. Arya, and W. H. Snyder, 1993: Numerical simulation to determine the effects of incident wind shear and turbulence level on the flow around a building.Journal of Wind Engineering and Industrial Aerodynamics,46 &47, 129–134.

    Article  Google Scholar 

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Kim, JJ., Baik, JJ. Physical experiments to investigate the effects of street bottom heating and inflow turbulence on urban street-canyon flow. Adv. Atmos. Sci. 22, 230–237 (2005). https://doi.org/10.1007/BF02918512

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  • DOI: https://doi.org/10.1007/BF02918512

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