Effect of opening geometry on full-scale internal pressure measurements
Conference Contribution ResearchOnline@JCUAbstract
An opening in a building envelope can cause large internal pressures, which are crucial to structural design of buildings. Analytical methods used to describe internal pressure fluctuations utilize ill-defined parameters, particularly loss and inertial coefficients, C_L and C_I. This paper focuses on the full-scale experimental setup used to record internal and external pressures under atmospheric wind flow to validate analytical methods. Typical resonance of internal pressure fluctuations was observed. Spectral matching was used to define loss and inertial coefficients for opening area to volume ratios, Φ_1 (=A^(3/2)/V), 28×10-6, 48×10-6 and 222×10-6 at relatively large Φ_5 (=λ_u/√A) values. Results indicate C_L increases with Φ_1, ranging between 8.5 and 30, where C_I ranged from 1.25 to 1.7.
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19th Australasian Wind Engineering Society Workshop
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6
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Torquay, VIC, Australia
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Australian Wind Engineering Society
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Torquay, VIC, Australia
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