Highlights ► Vehicle emissions in street canyon are studied using a wind-tunnel experiments. ► The pollutant concentration decreases exponentially in the vertical direction. ► The pollutant concentration decreases as the wind direction increases. ► The pollutant concentration increases as the aspect ratio decreases.

    Abstract Vehicle emissions inside an urban environment are investigated using a wind-tunnel under neutral atmospheric conditions. The urban environment was formed as street canyon model. The diffusion flow field in the boundary layer inside the street canyon was examined at different locations of varying geometry of the street and wind directions in the downwind distance of the leeward side of the street canyon model. The results show that the vertical velocity increases as the aspect ratio increases and with wind direction increases from θ =90°. The pollutant concentration increases as the aspect ratio decreases. The pollutant concentration decreases as the wind direction increases from θ =90°. The pollutant concentration distributions indicate that the variability of the structure, geometry and wind direction inside the street canyon are important parameters for estimating air quality in the urban street canyon.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Experimental study of the impact of structural geometry and wind direction on vehicle emissions in urban environment


    Beteiligte:


    Erscheinungsdatum :

    2011-01-01


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Vehicle wind direction adjuster

    SANO TORU / UEHARA NOBUAKI / UCHIKAWA SHOHEI | Europäisches Patentamt | 2018

    Freier Zugriff

    VEHICLE WIND DIRECTION ADJUSTER

    SANO TORU / UEHARA NOBUAKI / UCHIKAWA SHOHEI | Europäisches Patentamt | 2016

    Freier Zugriff

    Procedures for the estimation of vehicle emissions in an urban environment

    Rayfield, D. / Longhurst, J. W. S. / Conlan, D. E. et al. | British Library Conference Proceedings | 1995


    WIND DIRECTION ADJUSTMENT DEVICE FOR VEHICLE

    SANO TORU / UEHARA NORIAKI / UCHIKAWA SHOHEI | Europäisches Patentamt | 2016

    Freier Zugriff