Wind-induced pressure loads on buildings in tandem arrangement in urban environment

Gnatowska, Renata

doi:10.1007/s10652-018-9646-0

Cited by 12 publications

(4 citation statements)

References 54 publications

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“…The research concerns a very complex flow problem [33] and the purpose of the carried out analysis was to indicate the influence of the discretization of the computational domain representing the tandem building arrangement in an urban environment on CFD results, particularly the velocity field in the direct vicinity of the modelled objects. Three mesh types (HEX, POLY and TETRA) were analysed and the GCI was calculated for each of them based on three meshes of different relative cell sizes.…”

Section: Discussionmentioning

confidence: 99%

Numerical Analysis of Flow in Building Arrangement: Computational Domain Discretization

et al. 2019

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The progress in environmental investigations such as the analysis of building arrangements in an urban environment could not have been expanded without the use of computational fluid dynamics (CFD) as a research tool. The rapid development of numerical models results in improved correlations to results obtained with real data. Unfortunately, the computational domain discretization is a crucial step in CFD analysis which significantly influences the accuracy of the generated results. Hence an innovative approach to computational domain discretization using polyhedral elements is proposed. The results are compared to commonly applied tetrahedral and hexahedral elements as well as experimental results of particle image velocimetry (PIV). The performed research proves that the proposed method is promising as it allows for the reduction of both the numerical diffusion of the mesh as well as the time cost of preparing the model for calculation. In consequence, the presented approach allows for better results in less time.

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Section: Discussionmentioning

confidence: 99%

Numerical Analysis of Flow in Building Arrangement: Computational Domain Discretization

et al. 2019

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“…High winds can create uncomfortable and potentially hazardous conditions, limiting the use of parks and outdoor spaces [125]. Additionally, inadequate planning can lead to inefficient energy usage in buildings due to wind-induced pressure differentials [126]. Open-jet testing provides a powerful tool to simulate wind conditions within urban environments accurately.…”

Section: Optimizing Urban Planning and Green Spacesmentioning

confidence: 99%

Breaking Boundaries in Wind Engineering: LSU WISE Open-Jet Facility Revolutionizes Solar Panel and Building Design

Aly

2023

Applied Sciences

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Experimental wind engineering is crucial for global structural design. This paper addresses limitations in aerodynamic testing, particularly in wall-bounded and small-scale scenarios. Open-jet testing, introduced as an advanced tool, overcomes turbulence modelling constraints, providing a more accurate representation of real-world conditions. The LSU WISE open-jet facility produces complete turbulence at a large scale, eliminating the need for corrections accompanied by partial turbulence simulation. This discovery holds significant implications in wind engineering and unsteady aerodynamics. Integrating photovoltaic panels with gable-roofed buildings may not require additional structural reinforcement, with a reduction in wind uplift forces by 45–63%. Building-integrated photovoltaics (BIPV) offer design flexibility and aesthetic appeal despite potential higher upfront costs. Strategic interventions, such as design optimization and cost-effective installation methods, can enhance the economic viability of BIPV systems. Contrary to long-held beliefs, the findings challenge the notion that wind loads on structures with sharp corners are insensitive to Reynolds number. Open-jet testing produces higher peak pressures, providing real-world justification for actual damage in high-rise buildings. These results validate the author’s hypothesis regarding the underestimation of peak loads (in small-scale testing) leading to cladding failure in high-rise buildings. They emphasize the superiority of large-scale open-jet testing, underscoring its critical role in designing resilient structures. The LSU WISE open-jet facility’s unique capabilities hold immense promise for revolutionizing wind engineering, addressing grand challenges, and creating more resilient and sustainable infrastructure. Its applications span critical infrastructure, promising significant economic, societal, and educational impacts in STEM fields.

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“…Such methods provide reliable results. At the same time, they are relatively fast and inexpensive in examining simplified systems of solids that fail to fully reflect the complexity of the actual geometric structure of the city [12][13][14][15][16][17][18]. Cases that involve complex, multi-element building development systems pose more difficulty and are less frequently found in the source literature [6,8,10,[19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Wind Conditions at Pedestrian Level in Different Types of Residential Urban Development for a High Degree of Land Use Efficiency

2021

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This paper addresses wind conditions in urban building development at the pedestrian level. The article aimed to identify aerodynamic phenomena around three types of multi-family housing developments with different forms and the same urban parameters of building development density (high density was taken into account). The aim of the research was mainly to achieve qualitative results that would lead to understanding fundamental processes and phenomena. Wind tunnel experimental studies were conducted on physical models at a scale of 1: 400 using visualization and erosion methods. These experiments yielded data regarding the arrangement of airflow directions and changes in airflow velocity, expressed as the amplification coefficient (α), the occurrence of which was caused by the presence of buildings. An analysis was conducted concerning wind conditions that constitute pedestrian comfort and influence the possibility for ventilation of spaces between buildings for the three selected models. The research results were compared, and an attempt was made to assess the most beneficial and the least favorable building development types in this respect.

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Wind-induced pressure loads on buildings in tandem arrangement in urban environment

Cited by 12 publications

References 54 publications

Numerical Analysis of Flow in Building Arrangement: Computational Domain Discretization

Numerical Analysis of Flow in Building Arrangement: Computational Domain Discretization

Breaking Boundaries in Wind Engineering: LSU WISE Open-Jet Facility Revolutionizes Solar Panel and Building Design

Wind Conditions at Pedestrian Level in Different Types of Residential Urban Development for a High Degree of Land Use Efficiency

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