@article {bnh-5506, title = {Internal pressures in a full-scale test enclosure with windward wall openings}, journal = {Journal of Wind Engineering and Industrial Aerodynamics }, volume = {189}, year = {2019}, month = {04/2019}, abstract = {

A single opening on the windward wall which generates large\ internal pressures\ in a building often defines the critical\ wind loadingstructural design\ criterion. This paper presents internal pressure fluctuations in a sealed\ Full-Scale Test\ Enclosure (FSTE) for a range of single windward wall opening configurations induced by atmospheric wind flow, to assess the influence\ opening size\ (i.e. S*\ =\ (A3/2/V)(as/U{\textasciimacron}h)2) has on the internal pressure. Damped\ Helmholtz\ resonance was observed for S* \> 0.88, with peak and standard deviation internal pressures being about 5\% higher than the\ external pressures\ when S* \> 1.9. Internal pressure fluctuations are attenuated when S* \< 0.75. The inertial coefficient\ CI\ is between 1.3 and 1.5 and the\ loss coefficientCL\ increases with increasing\ opening area(0.88\ \<\ S*\ \<\ 5.8) between 10 and 20. These parameters have a significant influence on the internal pressure fluctuations, and this controlled\ full-scale\ study carried out for the first time provides data for validating analytical and\ model-scale\ studies on internal pressure fluctuations in buildings.

}, keywords = {Full-scale, Helmholtz resonance, Inertial coefficient, Internal pressure, Loss coefficient, Low-rise buildings, Single opening}, doi = {https://doi.org/10.1016/j.jweia.2019.03.024}, url = {https://www.sciencedirect.com/science/article/pii/S0167610518310304}, author = {Humphreys, M and John Ginger and David Henderson} }