PIV and pressure measurements on two high-rise models in tandem arrangement
conference paper
Particle Image Velocimetry (PIV) and pressure measurements were performed on a highrise
model with a height (H) of 0.48 m and a width (B) of 0.12 m in a turbulent atmospheric boundary
layer. Experiments were carried out for an isolated model and four tandem configurations with varying
separation distance (S) between the models. Mean and standard deviation were determined for the PIV
and the pressure dataset. Both velocity fields and pressure coefficient distributions show an increase in
mean and fluctuating components near the entrance of the passage with decreasing separation distance.
Proper Orthogonal Decomposition (POD) was performed on the PIV data to determine the most energetic
modes. These modes were compared with observations from literature for tandem configurations in a
laminar boundary layer. Similar modes were found (single, gap and coupled mode). In the current study it
was found that the modes can occur simultaneously. Also the dominant mode differs from previous results
described in literature for the investigated setup ranges
model with a height (H) of 0.48 m and a width (B) of 0.12 m in a turbulent atmospheric boundary
layer. Experiments were carried out for an isolated model and four tandem configurations with varying
separation distance (S) between the models. Mean and standard deviation were determined for the PIV
and the pressure dataset. Both velocity fields and pressure coefficient distributions show an increase in
mean and fluctuating components near the entrance of the passage with decreasing separation distance.
Proper Orthogonal Decomposition (POD) was performed on the PIV data to determine the most energetic
modes. These modes were compared with observations from literature for tandem configurations in a
laminar boundary layer. Similar modes were found (single, gap and coupled mode). In the current study it
was found that the modes can occur simultaneously. Also the dominant mode differs from previous results
described in literature for the investigated setup ranges
TNO Identifier
469481
Source title
The seventh International Colloquium on Bluff Body Aerodynamics and Applications (BBAA7) Shanghai, China, September 2-6, 2012
Pages
1-10
Files
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