Analysis of the natural ventilation performance of residential areas considering different urban configurations in Elazığ, Turkey

Gülten, Ayça; Öztop, Hakan F.

doi:10.1016/j.uclim.2020.100709

Cited by 15 publications

(7 citation statements)

References 18 publications

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“…Although building height differences and homogeneity in the urban area are important factors for urban ventilation performance in an area [49], as studied in old cities such as Elazı g, this study did not address this point since urban morphology surrounding the case studies has changed throughout history. Therefore, this study relied on a wind rose analysis for each region.…”

Section: Discussionmentioning

confidence: 99%

“…An extension for this research may include using extensive field and numerical studies, which could provide more insight into the design of historical windcatchers, thus advancing the research on sustainable vernacular elements such as the windcatcher. Additionally, combining a windcatcher analysis with current research on the effect of urban configurations on airflow and ventilation [49] could help provide new information on how to utilize these elements to improve ventilation in existing and new neighborhoods.…”

Section: Discussionmentioning

confidence: 99%

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The Rise and Evolution of Wind Tower Designs in Egypt and the Middle East

Nessim,

Elshabshiri,

Bassily

et al. 2023

Sustainability

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Throughout history, vernacular architecture has sought to provide inhabitants with comfort, using local materials and techniques while drawing inspiration from the local culture. This goal has helped natural and passive environmental building techniques to emerge, evolve, and develop. Even though we are increasingly dependent on mechanical ventilation and cooling solutions, passive techniques are in favor due to global climate challenges and the drive toward sustainable construction. One of the most well-known passive cooling techniques is the windcatcher, or wind tower, as it is known in the Middle East (also known as a malqaf in Egypt). Windcatchers, which appeared in Egypt during the Pharaonic era, were also present in other vernacular Middle Eastern countries such as Iran and Iraq, and they differed in design and materials. This research aims to extract, analyze, and compare windcatchers throughout historical eras in Egypt and other Middle Eastern countries across three main eras: ancient, medieval, and modern. This study thus provides a timeline for developing these passive cooling systems, demonstrating how they were integrated into architecture over millennia. This study also investigates the design differences in these vernacular models, including their shapes, number of sides, and orientation, and correlates them to climatic and architectural conditions. The results highlight that the vernacular wind towers corresponded to the prevailing wind directions and the ventilation needs of the connected spaces. Furthermore, the findings question the effectiveness and appropriateness of some of the modern incorporations of wind towers, which borrow their design from local precedents.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The Rise and Evolution of Wind Tower Designs in Egypt and the Middle East

Nessim,

Elshabshiri,

Bassily

et al. 2023

Sustainability

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“…Therefore, we used the widely accepted indicator of wind velocity ratio (VR w ) to evaluate pedestrian-level urban ventilation efficiency. VR w is the ratio of wind velocity at the pedestrian level to the free stream velocity of the boundary layer (Gülten and Öztop, 2020).…”

Section: Evaluation Of Urban Ventilation Efficiency and Pedestrian Wi...mentioning

confidence: 99%

“…Numerous studies examining the effect of building configuration on urban ventilation reported that shifted building configuration has lower ventilation efficiency than the grid-aligned configuration (Brown and DeKay, 2001). Gülten and Öztop (2020) compared the urban block typologies using the 5 × 6, 5 × 5, 5 × 2, 4 × 3 idealised building arrays, while Chen et al ( 2021) compared grid-aligned and shifted building configurations using 5 × 5 idealised building arrays. It should be noted that earlier studies were performed on a larger scale.…”

Section: Role Of Building Configuration On the Risk Of Wind Discomfor...mentioning

confidence: 99%

Wind Adaptive Urban Seafront Buildings Design for Improving Urban Ventilation and Pedestrian Wind Comfort in Mediterranean Climate

Reiter¹,

Bas²,

Doğrusoy³

2022

IJGW

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Coastal cities in the Mediterranean region have cool sea breezes that can reduce the effects of global warming, urban heat islands (UHI), and air pollution. However, in many coastal cities, impermeable urban seafront buildings prevent cool sea breezes from penetrating the city while at the same time posing a risk of pedestrian wind discomfort. This study aims to design wind-adaptive urban seafront buildings that improve urban ventilation and pedestrian wind comfort in Izmir, a high-density Mediterranean city, using the parametric design and computational fluid dynamics (CFD) method. Alternative seafront buildings consisting of two-rows and shifted configurations were designed using the two proposed urban geometric indicators. The authors found that the denser and more compact seafront building configuration can prevent the risk of wind discomfort and achieves the highest ventilation efficiency (82%). The findings apply to similar coastal urban environments and help urban policymakers and designers.

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“…Zero, one, two, three, and four equation models are contained in the eddy viscosity models. Among these models, the two-equation models, which entail k-ω and k-ε models, are the commonest models used for the application of natural ventilation [81][82][83][84]. The most well-known equation models in the applications of wind-driven natural ventilation are the standard k-ε model and the RNG k-ε model as the subgroup of the k-ε model and the standard k-ω model and the shear-stress transport (SST) k-ω as the subgroup of the k-ω model.…”

Section: Turbulence Modelsmentioning

confidence: 99%

A Review of Numerical Simulation as a Precedence Method for Prediction and Evaluation of Building Ventilation Performance

2021

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Natural ventilation has been used widely in buildings to deliver a healthy and comfortable indoor environment for occupants. It also reduces the consumption of energy in the built environment and dilutes the concentration of carbon dioxide. Various methods and techniques have been used to evaluate and predict indoor airspeed and patterns in buildings. However, few studies have been implemented to investigate the relevant methods and tools for the evaluation of ventilation performance in indoor and outdoor spaces. The current study aims to review available methods, identifying reliable ones to apply in future research. This study investigates scientific databases and compares the advantages and drawbacks of methods including analytical models, empirical models, zonal models, and CFD models. The findings indicated the computational fluid dynamics (CFD) model is the most relevant method because of cost-effectiveness, informative technique, and proficiency to predict air velocity patterns and ratios in buildings. Finally, widely used CFD codes and tools are compared considering previous studies. It is concluded the application of codes for research is subject to the complexity and characteristics of a studied model, the area and field of study, the desired turbulence model, and the user interface.

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Analysis of the natural ventilation performance of residential areas considering different urban configurations in Elazığ, Turkey

Cited by 15 publications

References 18 publications

The Rise and Evolution of Wind Tower Designs in Egypt and the Middle East

The Rise and Evolution of Wind Tower Designs in Egypt and the Middle East

Wind Adaptive Urban Seafront Buildings Design for Improving Urban Ventilation and Pedestrian Wind Comfort in Mediterranean Climate

A Review of Numerical Simulation as a Precedence Method for Prediction and Evaluation of Building Ventilation Performance

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