The effect of Street canyon width towards wind flow in between high-rise buildings

2020 ◽  
Vol 930 ◽  
pp. 012044
Author(s):  
Y Sanjaya ◽  
D Priambodo ◽  
P W Sarli ◽  
H D Setio
Keyword(s):  
Street Canyon ◽  
Wind Flow ◽  
High Rise

scholarly journals Experimental Study of Wind Flow in a Street Canyon between High-Rise Buildings Using PIV

2020 ◽  
Vol 52 (5) ◽  
pp. 639
Author(s):  
Herlien D. Setio ◽  
Prasanti Widyasih Sarli ◽  
Yongky Sanjaya ◽  
Doni Priambodo
Keyword(s):  
Experimental Study ◽  
Street Canyon ◽  
Wind Flow ◽  
High Rise

WIND TUNNEL AND CFD STUDIES ON WIND FLOW AROUND A HIGH-RISE BUILDING WITH A REFUGE FLOOR

2005 ◽  
Author(s):  
CHARLES C. K. CHENG ◽  
K. M. LAM ◽  
RICHARD K. K. YUEN ◽  
S. M. LO
Keyword(s):  
Wind Tunnel ◽  
Wind Flow ◽  
High Rise ◽  
High Rise Building

CFD Analysis of Wind Effects on High-Rise Buildings Complex "Panorama City in Bratislava"

2016 ◽  
Vol 837 ◽  
pp. 1-4
Author(s):  
Roland Antal ◽  
Norbert Jendzelovsky
Keyword(s):  
Pressure Coefficient ◽  
External Pressure ◽  
Wind Tunnels ◽  
Wind Flow ◽  
3D Analysis ◽  
Cfd Analysis ◽  
Wind Effects ◽  
High Rise ◽  
Modeling Software ◽  
Volume Method

Analysis of wind flow upon high-rise buildings is very common topic. Nowadays, there are no general or analytical ways how to analyze wind effects on irregular shaped high-rise buildings complexes. Scaled experiments tested in wind tunnels are best for precise solutions, however they are time consuming and expensive too. Therefore we use computational modeling software based on finite volume method to analyze these effects and then, thanks to these analysis we can design structures and optimize them. Paper deals with simplified 3D analysis of wind effects on high-rise buildings complex "Panorama City" located in Bratislava-Slovakia. Through this analysis we obtain results for wind speed near objects and external pressure coefficient as well. Both of them will be helpful to gain insight for future constructions or verification of already constructed ones.

scholarly journals Distribution of the external pressure coefficients on the elliptic tower: experimental measurement compared with numerical modelling

2020 ◽  
Vol 313 ◽  
pp. 00047
Author(s):  
Michal Franek ◽  
Marek Macák ◽  
Oľga Hubová
Keyword(s):  
Cfd Simulation ◽  
Flow Simulation ◽  
External Pressure ◽  
Wind Pressure ◽  
Wind Flow ◽  
Suitable Model ◽  
Pressure Coefficients ◽  
Building Model ◽  
High Rise ◽  
Experimental Values

The wind flow around the elliptical object was investigated experimentally in the BLWT wind tunnel in Bratislava and subsequently solved by computer wind flow simulation. On a high-rise building model, the external wind pressure coefficients were evaluated for different wind directions and then compared with the numerical CFD simulation in ANSYS, where different models of turbulence and mesh types were used. The aim of the article was to evaluate and compare the obtained values and after analysing the results to choose the most suitable model of turbulence and mesh types, which showed the smallest deviations from the experimental values.

Model Sensitivity Test of Large Eddy Simulation for Wind Flow and Pollutant Dispersion in a Street Canyon

2014 ◽  
Vol 695 ◽  
pp. 562-566
Author(s):  
Afiq Witri Muhammad Yazid ◽  
Nor Azwadi Che Sidik ◽  
Salim Mohamed Salim ◽  
Shuhaimi Mansor
Keyword(s):  
Steady State ◽  
Large Eddy Simulation ◽  
Street Canyon ◽  
Pollutant Dispersion ◽  
Wind Flow ◽  
Model Sensitivity ◽  
Ansys Fluent ◽  
Urban Street ◽  
Eddy Simulation ◽  
Large Eddy

This paper reports on the model sensitivity analysis of a commercial computational fluid dynamics program, ANSYS FLUENT v14. The purpose of the analysis was to determine the appropriate modeling settings for numerical model of the case study. A full scale of a simplified urban street canyon was modelled and the turbulent flow was calculated using Large Eddy Simulation (LES) techniques. The model sensitivity tests involved are mesh sensitivity, statistically steady state and sampling. Adequate numbers of cells, period time to achieve statistically steady state (SST) and sampling time to simulate wind flow and pollutant dispersion in street canyon were determined through systematic tests.

Numerical Validation for Wind Flow Field in a Street Canyon under Unstable Atmospheric Condition

2014 ◽  
Vol 695 ◽  
pp. 671-675
Author(s):  
Afiq Witri Muhammad Yazid ◽  
Nor Azwadi Che Sidik ◽  
Salim Mohamed Salim ◽  
Shuhaimi Mansor
Keyword(s):  
Flow Field ◽  
Validation Study ◽  
Street Canyon ◽  
Atmospheric Condition ◽  
Wind Flow ◽  
Turbulent Model ◽  
Ansys Fluent ◽  
Eddy Simulation ◽  
Complex Simulation ◽  
Thermal Intensity

This paper reports on the validation study of a commercial computational fluid dynamics program, ANSYS FLUENT v14. The purpose of the study was to determine the best turbulent model that can reproduce appropriately the wind flow field of turbulent flow in street canyon under different thermal atmospheric condition. Standard k-ε (SKE) and Large Eddy Simulation (LES) techniques were chosen as the turbulent model for the validation study. It was found that LES could well calculate a complex simulation involving isothermal flow and thermal flow with different thermal intensity and different heat location in street canyon.

scholarly journals Large Eddy Simulation of Wind Flow over A Realistic Urban Area

Computation ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 47
Author(s):  
Gokhan Kirkil ◽  
Ching-Long Lin
Keyword(s):  
Large Eddy Simulation ◽  
Large Scale ◽  
Urban Canopy ◽  
Tall Buildings ◽  
Wind Flow ◽  
High Rise ◽  
Eddy Simulation ◽  
Heat Effects ◽  
Large Eddy ◽  
Canopy Flows

A high-resolution large eddy simulation (LES) of wind flow over the Oklahoma City downtown area was performed to explain the effect of the building height on wind flow over the city. Wind flow over cities is vital for pedestrian and traffic comfort as well as urban heat effects. The average southerly wind speed of eight meters per second was used in the inflow section. It was found that heights and distribution of the buildings have the greatest impact on the wind flow patterns. The complexity of the flow field mainly depended on the location of buildings relative to each other and their heights. A strong up and downflows in the wake of tall buildings as well as large-scale coherent eddies between the low-rise buildings were observed. It was found out that high-rise buildings had the highest impact on the urban wind patterns. Other characteristics of urban canopy flows, such as wind shadows and channeling effects, are also successfully captured by the LES. The LES solver was shown to be a powerful tool for understanding urban canopy flows; therefore, it can be used in similar studies (e.g., other cities, dispersion studies, etc.) in the future.

scholarly journals Wind Tunnel Studies of a Pedestrian-Level Wind Environment in a Street Canyon between a High-Rise Building with a Podium and Low-Level Attached Houses

Energies ◽  
2015 ◽  
Vol 8 (10) ◽  
pp. 10942-10957 ◽  
Author(s):  
Chien-Yuan Kuo ◽  
Chun-Ta Tzeng ◽  
Ming-Chin Ho ◽  
Chi-Ming Lai
Keyword(s):  
Wind Tunnel ◽  
Street Canyon ◽  
Wind Environment ◽  
Low Level ◽  
High Rise ◽  
High Rise Building
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