Experiments in Fluids

, Volume 37, Issue 3, pp 409–418 | Cite as

DPIV study of the effect of a gable roof on the flow structure around a surface-mounted cubic obstacle

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Abstract

The present paper reports a thorough comparison of the turbulent flow characteristics exhibited by a cubic surface-mounted obstacle and a simple geometric variant (gable roof of 30° roof pitch). The measurements supporting this study were obtained by the use of a 2D-DPIV system. Significant differences in the large-scale vortical structures and turbulent kinetic energy fields implied drastic consequences with respect to the advective and turbulent dispersive characteristics of the flow at roof and ground levels.

Keywords

Particle image velocimetry Surface-mounted obstacle Gable roof Mean vortical structures Mean pressure field 
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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  1. 1.Instituto Superior TécnicoMechanical Engineering DepartmentLisbonPortugal

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