Pollutant transport between a street canyon and a 3D urban array as a function of wind direction and roof height non-uniformity

Data Quality and Accuracy of Measurements

The measurement system was successfully tested on simpler known flow situations and the results of the concentration measurements for the simpler street canyon model AR -1 were successfully compared with the earlier results of Soulhac et al. (2009). The total measurement error of the pollution fluxes was estimated to be less than 5% using ensemble statistics, taking into account the errors of velocity (1%), concentration measurements (4%) and the positioning error of the 3D traverse system (1%). Further details on data quality and accuracy can be found in Nosek et al. (2016, 2017).

References

Soulhac, L., Garbero, V., Salizzoni, P., Mejean, P., Perkins, R.,J., 2009. Flow and dispersion in street intersections. Atmos. Environ. 43 (18), 2981e2996. https://doi.org/10.1016/j.atmosenv.2009.02.061

Nosek, Š., Kukačka, L., Jurčáková, K., Kellnerová, R., Jaňour, Z., 2017. Impact of roof height non-uniformity on pollutant transport between a street canyon and intersections. Environ. Pollut. 227, 125–138. https://doi.org/10.1016/j.envpol.2017.03.073

Nosek, Š., Kukačka, L., Kellnerová, R., Jurčáková, K., Jaňour, Z., 2016. Ventilation Processes in a Three-Dimensional Street Canyon. Boundary-Layer Meteorol. 159, 259–284. https://doi.org/10.1007/s10546-016-0132-2

Contributed by: Štěpán Nosek — Institute of Thermomechanics of the CAS, v. v. i.

Front Page

Introduction

Review of experimental studies

Description

Experimental Set Up

Measurement Quantities and Techniques

Data Quality and Accuracy

Measurement Data and Results