Towards a better understanding of pressure equalization
conference paper
A series of wind tunnels tests are presented on a cube, equipped with a permeable
outer layer. The influences of cavity depth and opening width have been investigated. This research
shows that a wind direction of 75 degrees with respect to the considered panel gives the
highest differential pressures relevant for cladding. For smooth approach flow conditions uniform
cavity flows are found, with local effects near the openings in the reattachment zones. Large gaps
affect the pressure equalization; hardly any effect can be observed when varying cavity depths. It
is possible that measures leading to significant effects are outside the range of current practice
outer layer. The influences of cavity depth and opening width have been investigated. This research
shows that a wind direction of 75 degrees with respect to the considered panel gives the
highest differential pressures relevant for cladding. For smooth approach flow conditions uniform
cavity flows are found, with local effects near the openings in the reattachment zones. Large gaps
affect the pressure equalization; hardly any effect can be observed when varying cavity depths. It
is possible that measures leading to significant effects are outside the range of current practice
TNO Identifier
467112
Source title
Proceedings of 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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