Empirical analysis of three wind simulation tools to support urban planning in early stages of design

Sousa, Joana Pack Melo; Moya, Rafael Andres Castro; Prohasky, Daniel; Vaz, Carlos Eduardo Verzola

doi:10.5151/despro-sigradi2015-80189

Cited by 3 publications

(1 citation statement)

References 3 publications

(3 reference statements)

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“…It differs from other CFD software specifically in its treatment of flowing fluid surfaces. The program uses special numerical methods to track the location of surfaces and to apply the proper dynamic boundary conditions at those surfaces [23,24]. Also, FLOW-3D had been widely used to interpret and validate laboratory and field experiments as well as provide other benefits such as shortening research periods, lower costs and effective repeatability [25].…”

Section: River Sandmentioning

confidence: 99%

Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS

Abdurrasheed

Yusof

Al‐Qadami

et al. 2019

Water

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The flow resistance of the existing modules in the bio-ecological drainage system (BIOECODS) is high and may lead to flood instead of its mitigation. As part of efforts to enhance the performance of the system, the river engineering and urban drainage research center (REDAC) module was developed. This study modelled the hydrodynamics of flow through this module using FLOW-3D and laboratory experiments for two cases of free flow without module (FFWM) and flow with a module (FWM) to understand and visualize the effects of the module. With less than 5% error between the numerical and experimental results, REDAC module altered the flow pattern and created resistance by increasing the Manning's roughness coefficient at the upstream, depth-averaged flow velocity (43.50 cm/s to about 46.50 cm/s) at the downstream and decreasing water depth (7.75-6.50 cm). These variations can be attributed to the complex nature of the module pattern with further increase across the porous openings. Therefore, the technique used herein can be applied to characterize the behavior of fluids in larger arrangments of modules and under different flow conditions without the need for expensive laboratory experiments.

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Section: River Sandmentioning

confidence: 99%

Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS

Abdurrasheed

Yusof

Al‐Qadami

et al. 2019

Water

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Variations of Spatial Qualities Experienced in Rooftop Garden of Mix-Used Building in Tokyo

Tran

Murata

2020

Transactions of AIJ

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A Comparative Study of the Simulation Accuracy and Efficiency for the Urban Wind Environment Based on CFD Plug-Ins Integrated into Architectural Design Platforms

Gao

2022

Buildings

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The deterioration of the urban environment is a problem which has captured the attention of governmental departments and researchers, who are committed to improving the urban environment from the perspective of optimizing urban morphology. Although many researchers have applied computational fluid dynamics (CFD) plug-ins to study the problems of urban ventilation and pollutant accumulation, studies on the reliability and simulation accuracy verification of CFD plug-ins are currently scarce. Therefore, we used three CFD plug-ins based on different architectural design platforms to evaluate and compare their operation difficulty, simulation accuracy, and efficiency through the analysis of the simulation results of urban ventilation. This study complements the reliability validation of CFD plug-in simulations and guides urban planners and architects in the selection and application of CFD plug-ins. The results show that the CFD plug-in generally underestimates the wind speed at the pedestrian level and the prediction accuracy is poor in the wake area of obstacles, especially with the GH_Wind plug-in. Under the 0° inflow direction, the simulation results of the Butterfly plug-in were the most consistent with the experimental values. When the inflow direction increased to 22.5° and 45°, the Autodesk CFD showed the best simulation accuracy. Overall, Autodesk CFD achieves a balance between simulation accuracy and speed in urban airflow simulation.

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Empirical analysis of three wind simulation tools to support urban planning in early stages of design

Abstract: Este artigo apresenta a experiencia de utilização

Cited by 3 publications

References 3 publications

Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS

Modelling of Flow Parameters through Subsurface Drainage Modules for Application in BIOECODS

Variations of Spatial Qualities Experienced in Rooftop Garden of Mix-Used Building in Tokyo

A Comparative Study of the Simulation Accuracy and Efficiency for the Urban Wind Environment Based on CFD Plug-Ins Integrated into Architectural Design Platforms

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