Automatic selection of release plane for Lagrangian-based wind-driven rain studies

Xu, George; Tan, Kendrick; Ge, Zhi; Poh, Hee Joo; Ooi, Chin Chun; Eng, Yong

doi:10.1016/j.jweia.2022.105242

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…Some studies of WDR involve analyzing its characteristics, such as droplet size, velocity, and trajectory, as well as the influence of wind speed, direction, and rain intensity. Researchers often use experimental techniques, numerical simulations, and field measurements to investigate WDR behavior and its effects on building performance [50][51][52]. The above literature indicates that the research on WDR aims to inform building design, construction practices, and the development of protective strategies or mitigation measures to enhance the durability and resilience of buildings against WDR.…”

Section: Review Of Wind-driven Rainmentioning

confidence: 99%

The Design of Façade-Integrated Vertical Greenery to Mitigate the Impacts of Extreme Weather: A Case Study from Hong Kong

Xiang,

Tao

2023

Buildings

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Vertical greenery not only helps to cool the surfaces of buildings but, more importantly, it can also mitigate the Urban Heat Island effect. The growth of vertical greenery is highly dependent on ongoing maintenance, such as irrigation. Wind-driven rain serves as a natural source of irrigation for vertical greenery. Wind-driven rain simulation was conducted on a typical high-density and high-rise case in Hong Kong to first classify the wind-driven rain harvesting potential on the façade with very high, high, moderate, low, and very low levels. Then, Scenario 1 (very high potential), Scenario 2 (very high + high potential), and Scenario 3 (very high + high + moderate potential) regarding vertical greenery in locations with three levels of wind-driven rain harvesting potential were simulated in ENVI-met to assess its Urban Heat Island mitigation effect. The maximum temperature reduction on the street occurs between 12 p.m. and 3 p.m., indicating the greatest mitigation of the Urban Heat Island effect. Scenario 1, Scenario 2, and Scenario 3 achieve a maximum temperature reduction of 0.76 °C, 0.88 °C, and 1.06 °C, respectively, during this time period.

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Section: Review Of Wind-driven Rainmentioning

confidence: 99%

The Design of Façade-Integrated Vertical Greenery to Mitigate the Impacts of Extreme Weather: A Case Study from Hong Kong

Xiang,

Tao

2023

Buildings

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“…Depending on the wind speed, wind direction, and size of the raindrop, the injection plane size and position change. Indeed, a recent study suggests an automated method to select injection methods in a more effective way [4]. Further, the LPT technique is more compatible with steady studies, such as RANS, than unsteady studies, such as LES or DES.…”

Section: Introductionmentioning

confidence: 99%

Assessment of wind-driven rain (WDR) on buildings in an urban area: comparison of different CFD frameworks

Gholamalipour,

Ge,

Stathopoulos

2023

J. Phys.: Conf. Ser.

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The study of Wind-Driven Rain (WDR) loading on building facades is essential to design more sustainable and climate-resilient buildings, as well as to prevent further damage to old and historical buildings. Both WDR loading on buildings and façade responses to impinging raindrops have been studied previously but results for such a multi-parameter problem are not generally conclusive. Thus, the relevant provisions of ISO semi-empirical model cannot be applied with confidence for complex building configurations, such as those in urban areas since the WDR prediction can be more than twice that of the experimental data. In this paper, the Eulerian Multiphase (ME) technique is coupled with the RANS model to simulate the WDR loading on a six-story building under steady rainfall event conditions. Wind and WDR results are compared with the available wind-tunnel and on-site field measurement results, respectively. The field measurements were carried out on a six-story mid-rise residential building, located in Vancouver, Canada. The results show that the Euler-Euler framework (RANS-EM) predicts wind and WDR in such an urban area configuration more rapidly and accurately compared to the more traditional Euler-Lagrange framework (RANS-LPT) for both stand-alone and urban area configurations.

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Wind Driven Rain Analysis for Effective Industrial Building Design in Singapore to Mitigate Rainwater Penetration

Poh,

Eng,

Tibrewala

et al. 2024

Lecture Notes in Civil Engineering

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Automatic selection of release plane for Lagrangian-based wind-driven rain studies

Cited by 5 publications

References 27 publications

The Design of Façade-Integrated Vertical Greenery to Mitigate the Impacts of Extreme Weather: A Case Study from Hong Kong

The Design of Façade-Integrated Vertical Greenery to Mitigate the Impacts of Extreme Weather: A Case Study from Hong Kong

Assessment of wind-driven rain (WDR) on buildings in an urban area: comparison of different CFD frameworks

Wind Driven Rain Analysis for Effective Industrial Building Design in Singapore to Mitigate Rainwater Penetration

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