Numerical simulation of wind-induced mean and peak pressures around a low-rise structure

Ong, Robert H.; Patruno, L.; Yeo, Dong Hun; He, Yaping; Kwok, K.C.S.

doi:10.1016/j.engstruct.2020.110583

Cited by 26 publications

(8 citation statements)

References 40 publications

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“…Peak pressures are well reproduced with small discrepancies by LES; however, there is ample scope of improvement and research in the prediction of peak pressures using LES. The notable influence of mesh size and turbulence intensity on extreme pressures' predictions is confirmed in the study [32]. Figure 5 compares peak pressure coefficients on the vertical ring obtained from different transient CFD simulation cases (from literature) with full-scale data [140].…”

Section: Summary Of Findingssupporting

confidence: 61%

“…Figure 3 shows that none of the wind tunnel results precisely overlap with the full-scale data points over the entire vertical ring. The coefficients for full-scale surface pressures for the cubic model are processed in the method proposed in [32]. Figure 3 shows that the TPU wind tunnel offers better accuracy on the windward side, roof, and leeward side compared to the other two wind tunnels.…”

Section: Challenges In Small-scale Aerodynamic Testingmentioning

confidence: 99%

“…Figure 4 offers a similar presentation style (as in section 3) for comparing mean pressure coefficients to full-scale measurements. In this figure, mean pressure coefficients on the vertical ring of a cube are reproduced from the data found in the literature [32,52,138,139]. The numerical settings and simulations' details of studies for Figs.…”

Section: Summary Of Findingsmentioning

confidence: 99%

“…The reference dynamic pressure is defined as, q r = 1 2 ρU 2 r ; where, U r is the reference velocity, which is obtained from velocity measurements at the cube's roof height. It should be noted that this approach is the standard practice to determine pressure coefficients from wind tunnels [32]. The issue of reference pressures in aerodynamic investigations may not be a critical issue for small blockage.…”

mentioning

confidence: 99%

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Assessing aerodynamic loads on low-rise buildings considering Reynolds number and turbulence effects: a review

Khaled

Aly

2022

Adv. Aerodyn.

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This paper presents an extensive review of existing techniques used in estimating design wind pressures considering Reynolds number and turbulence effects, as well as a case study of a reference building investigated experimentally. We shed light on the limitations of current aerodynamic testing techniques, provisions in design standards, and computational fluid dynamics (CFD) methods to predict wind-induced pressures. The paper highlights the reasons for obstructing the standardization of the wind tunnel method. Moreover, we introduce improved experimental and CFD techniques to tackle the identified challenges. CFD provides superior and efficient performance by employing wall-modeled large-eddy simulation (WMLES) and hybrid RANS-LES models. In addition, we tested a large-scale building model and compared the results with published small-scale data. The findings reinforce our hypothesis concerning the scaling issues and Reynolds number effects in aerodynamic testing.

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Section: Summary Of Findingssupporting

confidence: 61%

Section: Challenges In Small-scale Aerodynamic Testingmentioning

confidence: 99%

Section: Summary Of Findingsmentioning

confidence: 99%

mentioning

confidence: 99%

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Assessing aerodynamic loads on low-rise buildings considering Reynolds number and turbulence effects: a review

Khaled

Aly

2022

Adv. Aerodyn.

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“…Construction practices laid out in standards and building codes [58] present some chances for developing structural resilience in fire-wind events. Ong et al [59] used CFD tools to investigate a low-rise structure that was immersed in a turbulent boundary layer. Their study was one of the initial endeavours to analyse peak pressure using large eddy simulations in order to present guidelines for the setup of Computational Fluid Dynamics models applied to assess quantities that are fundamental in numerous uses, for instance, in cladding design.…”

Section: Fire-wind Interaction Effects On Low-rise Buildingmentioning

confidence: 99%

Existing Improvements in Simulation of Fire–Wind Interaction and Its Effects on Structures

Ghodrat

Shakeriaski

Nelson

et al. 2021

Fire

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This work provides a detailed overview of existing investigations into the fire–wind interaction phenomena. Specifically, it considers: the fanning effect of wind, wind direction and slope angle, and the impact of wind on fire modelling, and the relevant analysis (numerical and experimental) techniques are evaluated. Recently, the impact of fire on buildings has been widely analysed. Most studies paid attention to fire damage evaluation of structures as well as structure fire safety engineering, while the disturbance interactions that influence structures have been neglected in prior studies and must be analysed in greater detail. In this review article, evidence regarding the fire–wind interaction is discussed. The effect of a fire transitioning from a wildfire to a wildland–urban interface (WUI) is also investigated, with a focus on the impact of the resulting fire–wind phenomenon on high- and low-rise buildings.

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Toward an Efficient Practice for Computational Wind Load Evaluation of Low-Rise Buildings

Al-Chalabi,

Elshaer

2024

Lecture Notes in Civil Engineering

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Numerical simulation of wind-induced mean and peak pressures around a low-rise structure

Cited by 26 publications

References 40 publications

Assessing aerodynamic loads on low-rise buildings considering Reynolds number and turbulence effects: a review

Assessing aerodynamic loads on low-rise buildings considering Reynolds number and turbulence effects: a review

Existing Improvements in Simulation of Fire–Wind Interaction and Its Effects on Structures

Toward an Efficient Practice for Computational Wind Load Evaluation of Low-Rise Buildings

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