Influence of building packing density and building height distribution on vetrical mass transport

0332774 - ÚT 2010 RIV JP eng C - Conference Paper (international conference)
Bezpalcová, Klára - Ohba, M. - Jaňour, Zbyněk
Influence of building packing density and building height distribution on vetrical mass transport.
The seventh International Conference on Urban Climate. Yokohama: N, 2009, s. 1-4. ISBN N.
[International Conference on Urban Climat /7./. Yokohama (JP), 29.06.2009-03.07.2009]
R&D Projects: GA MŠMT(CZ) OC 113
Institutional research plan: CEZ:AV0Z20760514
Keywords : pollution dispersion * idealised urban canopy * wind tunnel
Subject RIV: DG - Athmosphere Sciences, Meteorology

Study of dispersion through 18 different idealised arrays of building-like obstacles with various packing densities, layout arrangements, and building height distribution was conducted to find general rules of vertical mass transfer, which should be applied to real urban environments. Simultaneous measurement of passive tracer concentration and vertical wind component with high temporal resolution was conducted in the wind tunnel. This is a unique experimental method and it allows to directly derive the advective and turbulent vertical transport. The importance of a proper determination of the vertical turbulent fluxes at the edge of the plume and at the roof top level is emphasised.
Permanent Link: http://hdl.handle.net/11104/0177917