. . . . . . . "Kellnerov\u00E1, Radka" . "8th International Conference on Air Quality Science and Application" . "4"^^ . "2012-03-19+01:00"^^ . "[FD1BBA49449D]" . "The objective of this study is to determine processes of pollution ventilation in the X-shaped street intersection within an idealized symmetric urban area for the changing approach flow direction. A unique experimental set-up for simultaneous wind tunnel measurement of the flow velocity and the tracer gas concentration in a high temporal resolution is assembled. Advective horizontal and vertical scalar fluxes are computed from averaged measured velocity and concentration data within the street intersection. Vertical turbulent scalar fluxes are computed from synchronized velocity and concentration signals measured in the plane above the intersection. All results are obtained for five approach flow directions. The influence of the approach flow to the advective and turbulent fluxes is determined. The contribution of the advective and turbulent flux to the ventilation is discussed. Wind direction with the best dispersive conditions in the area is found." . . "Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation" . "RIV/61388998:_____/12:00376042!RIV13-AV0-61388998" . . . "Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation" . "RIV/61388998:_____/12:00376042" . "The objective of this study is to determine processes of pollution ventilation in the X-shaped street intersection within an idealized symmetric urban area for the changing approach flow direction. A unique experimental set-up for simultaneous wind tunnel measurement of the flow velocity and the tracer gas concentration in a high temporal resolution is assembled. Advective horizontal and vertical scalar fluxes are computed from averaged measured velocity and concentration data within the street intersection. Vertical turbulent scalar fluxes are computed from synchronized velocity and concentration signals measured in the plane above the intersection. All results are obtained for five approach flow directions. The influence of the approach flow to the advective and turbulent fluxes is determined. The contribution of the advective and turbulent flux to the ventilation is discussed. Wind direction with the best dispersive conditions in the area is found."@en . . "Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation"@en . . "Ja\u0148our, Zbyn\u011Bk" . . "Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation"@en . "Atheny" . "Nosek, \u0160t\u011Bp\u00E1n" . "Kuka\u010Dka, Libor" . "Jur\u010D\u00E1kov\u00E1, Kl\u00E1ra" . . "5"^^ . "Hatfield" . . "175337" . . . . "5"^^ . . "University of Hertfordshire" . . . "air pollution; atmospheric boundary layer; wind tunnel modelling; contaminant spreading; scalar fluxes; street canyon; street intersection; urban area ventilation"@en . . . . "978-1-907396-80-9" . . "Z(AV0Z20760514)" . .