EPJ Web of Conferences
Volume 45, 2013EFM12 – Experimental Fluid Mechanics 2012
|Number of page(s)||5|
|Published online||09 April 2013|
On the quadrant analysis of the flow in the street canyon
1 Charles University in Prague, Faculty of Mathematics and Physics, The Department of Meteorology and Environment Protection, Czech Republic
2 Institute of Thermomechanics Academy of Sciences of the Czech Republic, v.v.i, Dolejškova 1402/5, 182 00, Prague, Czech Republic
a e-mail: firstname.lastname@example.org
It is well known that sweep and ejection are major contributors to the momentum flux in the turbulent boundary layer. In order to evaluate the contribution of these events to the total flux, the wind-tunnel data measured by PIV technique were analyzed from spatial point of view. It was revealed that both the sweep and the ejection reach up to 90% of the flux momentum inside the canyon. Moreover, the sweep and ejection pass the street in an alternative fashion. When sweep reaches maximum, the ejection falls down to minimum and vice versa. The TKE energy is also very high in these particular events, reaching 80-90% of total TKE inside the street what makes the sweep and ejection to be the most important features in the flow.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.