Modelling surface pressure fluctuation on medium-rise buildings
article
This paper describes the results of two experiments into the fluctuating characteristics of windinduced
pressures on buildings in a built-up environment. The experiments have been carried out independently in Iceland and The Netherlands and can be considered to represent two separate cases of building geometries (HffiB and HoB). The results from both experiments show similar trends. Spectra of wind-induced pressures are related to the upstream wind velocity spectrum by the wind induced pressure admittance and the mean pressure coefficient. The velocity–pressure admittance plots for the windward sides show a conventional behaviour. Empirical models for the along-wind velocity–pressure admittance at the windward side are proposed in accordance with well-established methodology. These models, which are modifications of models previously available in the literature, are validated by the current experiments. Although more experimental research is needed for further validation, the results suggest that a model representing a broad range of building geometries can be developed for along-wind velocity–pressure admittance at the windward facade.
pressures on buildings in a built-up environment. The experiments have been carried out independently in Iceland and The Netherlands and can be considered to represent two separate cases of building geometries (HffiB and HoB). The results from both experiments show similar trends. Spectra of wind-induced pressures are related to the upstream wind velocity spectrum by the wind induced pressure admittance and the mean pressure coefficient. The velocity–pressure admittance plots for the windward sides show a conventional behaviour. Empirical models for the along-wind velocity–pressure admittance at the windward side are proposed in accordance with well-established methodology. These models, which are modifications of models previously available in the literature, are validated by the current experiments. Although more experimental research is needed for further validation, the results suggest that a model representing a broad range of building geometries can be developed for along-wind velocity–pressure admittance at the windward facade.
Topics
Bluff body aerodynamicsBuildingsFull-scalePressureVelocity-pressure admittanceWindAerodynamicsComputer simulationGeometryModificationPressureTall buildingsVelocityBluff body aerodynamicsMedium-rise buildingsSurface pressure fluctuationsUpstream wind velocityVelocity-pressure admittanceWind-induced pressuresWind stressAerodynamicsComputer simulationGeometryModificationPressureTall buildingsVelocityWind stress
TNO Identifier
331162
Source
Journal of Wind Engineering and Industrial Aerodynamics(94), pp. 845-858.
Pages
845-858
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