Numerical Simulation for the Wind Pressure Distribution of the Large-Span Roof of a Velodrome

2009 ◽  
Author(s):  
Z.H. Liu ◽  
J. Li ◽  
L.L. Chen ◽  
L.M. Tian
Keyword(s):  
Numerical Simulation ◽  
Pressure Distribution ◽  
Wind Pressure ◽  
Large Span

Numerical Simulation of Wind Pressure on Different Types of Large-Span Roofs

2012 ◽  
Vol 170-173 ◽  
pp. 3371-3374
Author(s):  
Ying Jia ◽  
Xi Meng ◽  
Hai Jun Zhang
Keyword(s):  
Numerical Simulation ◽  
Pressure Distribution ◽  
Wind Direction ◽  
Influencing Factor ◽  
Wind Pressure ◽  
Large Span ◽  
Computing Platform ◽  
Pressure Distributions ◽  
Roof Shape ◽  
Main Factor

The geometric shape of buildings in wind field is an important influencing factor of wind pressure distribution on the buildings. Along with the change of roof shape, wind pressure distributions vary obviously. In this paper, the numerical simulation of the wind pressure for four types of large-span roofs is carried out, using CFX12.0 as computing platform. The characteristics of wind pressure distribution are studied by considering some parameters, such as wind direction, rise-span ratio, and terrain roughness. Wind pressure distribution is greatly affected by wind direction, and the wind pressure on large-span roofs is dominated by suction; the vortex shedding produced by airflow separation is the main factor affecting the characteristics of wind load.

Study on Characteristics of Wind Loading on Open Ended Cantilevered Roof under Typhoon

2012 ◽  
Vol 256-259 ◽  
pp. 788-791
Author(s):  
Zhi Xiang Yin ◽  
Yu Zhang
Keyword(s):  
Pressure Distribution ◽  
Pressure Coefficient ◽  
Surface Wind ◽  
Great Influence ◽  
Wind Load ◽  
Wind Pressure ◽  
Wind Loading ◽  
Load Model ◽  
Large Span ◽  
Wind Pressure Coefficient

Open ended cantilevered roof is different from enclosed roof, because its change of wind pressure distribution is complex, and the wind directions have great influence on it. Up to now, for the characteristics of the structure are very complicated, there is no appropriate wind load model can be used in design, especially under typhoon, a specific wind field. So it is necessary to study the characteristics of wind load on open ended cantilevered roofs of typhoon. Using FLUENT and Computational Fluid Dynamics technology, based on the conventional, Tianpu’s and Shiyuan’s turbulence intensity of the typhoon scenario, a numerical simulation of wind flow around a large-span cantilevered roof was carried out. Analyzed different wind angles of the wind pressure distribution regularities on large-span cantilevered roof. The paper determined the distribution of the surface wind pressure coefficient for the cantilevered roofs, as well as the wind-sensitive parts of structures.

Numerical Simulation of Pressure Distribution around the Reticulated Shell Structure with Large Span

2013 ◽  
Vol 405-408 ◽  
pp. 710-712
Author(s):  
Zi Hou Yuan ◽  
Yi Chen Yuan ◽  
Wei Sun
Keyword(s):  
Pressure Distribution ◽  
Shell Structure ◽  
Fluid Dynamic ◽  
Flow Analysis ◽  
Wind Load ◽  
Wind Pressure ◽  
Large Span ◽  
Dynamic Software ◽  
Computational Fluid Dynamic Software ◽  
Reticulated Shell Structure

In order to investigate the pressure distribution around the reticulated shell structure with large span, a commercial Computational Fluid Dynamic software Fluent is employed to obtain the wind load and the coefficients of the time averaged pressure distribution around the reticulated shell structure in this paper. The numerical simulations of surface pressure are consistent with the experimental results. The characteristics of the wind pressure distribution are described through the flow analysis around the reticulated shell structure. All these discoveries can be used as a reference for the new version of the wind load criteria.

Distribution Rule Analysis and Research of Wind Loads of Stadium by Numerical Simulation

2012 ◽  
Vol 256-259 ◽  
pp. 826-830
Author(s):  
Zhi Xiang Yin ◽  
Shuang Zhang
Keyword(s):  
Numerical Simulation ◽  
Wind Tunnel ◽  
Pressure Distribution ◽  
Simulation Analysis ◽  
Surface Wind ◽  
Wind Pressure ◽  
Wind Loads ◽  
Distribution Law ◽  
Long Span ◽  
Distribution Rule

The most of Long-span stadium roofs are complex surface, the load norms cannot put forward the design requirements clearly in frequently. Determine wind loads need to use other means for help, while the numerical wind tunnel is one of the commonly be used to research methods in recent years. This paper introduces about the numerical simulation method of a long-span stadium roof surface wind pressure distribution , and based on FLUENT platform, a gymnasium as an example, the shear stress transport k - ω model (referred to as the SST k - ω model) on the roof surface wind pressure distribution of numerical wind tunnel simulation, analysis stadium roof surface pressure distribution law based on different wind directions.

Wind Pressure Distribution on a Large-Span Roof Structure

2012 ◽  
Vol 166-169 ◽  
pp. 234-238
Author(s):  
Qin Hua Wang ◽  
Bi Qing Shi ◽  
Le Le Zhang
Keyword(s):  
Wind Tunnel ◽  
Data Processing ◽  
Pressure Distribution ◽  
Pressure Measurement ◽  
Wind Tunnel Test ◽  
Wind Pressure ◽  
Large Span ◽  
Roof Structure

In this paper, wind tunnel test of a large-span roof structure is firstly introduced. Secondly, data processing on synchronous multi-spots pressure measurement test is given. Wind pressure distribution is calculated by using the method mentioned in this paper. Some results and conclusion are useful for design of large-span roof structure.

scholarly journals Airflow Patterns around Obstacles with Large-Span Shallow Shell Roof: Wind Tunnel Measurements and Direct Simulation

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Hongying Jia ◽  
Huixue Dang ◽  
Qianying Ma ◽  
Jun-Hai Zhao
Keyword(s):  
Wind Tunnel ◽  
Spherical Shell ◽  
Pressure Distribution ◽  
Shell Structure ◽  
Wind Tunnel Test ◽  
Wind Pressure ◽  
Mechanical Index ◽  
Shape Coefficient ◽  
Large Span ◽  
Wind Vibration

Wind tunnel tests on the rigid model of large-span shallow spherical shell roof structure were carried out. The variation rule and the calculation method for the average shape coefficient of the fluctuating wind pressure under six different typical wind directions were obtained. The wind pressure distribution of the node deflection and cross section stress was numerically investigated and analyzed. Meanwhile, the effect of mechanics-flow form of the typical spherical shell structure on the wind pressure distribution was analyzed quantitatively. In this study, it is found that the results of numerical simulation agree well with the wind tunnel test data. The study on the mechanical characteristics, as well as the wind vibration research, of the spherical shell structure in different working conditions provides a reliable theoretical basis for the mechanical index of the wind vibration.

Numerical Study of the Effect of Wall Opening on Wind Pressures on Low-Rise Gable-Roofed Buildings

2012 ◽  
Vol 424-425 ◽  
pp. 857-860 ◽  
Author(s):  
Shui Fu Chen ◽  
Miao Yu ◽  
Dong Yao Wang
Keyword(s):  
Numerical Simulation ◽  
Pressure Distribution ◽  
Numerical Study ◽  
Wind Pressure ◽  
Front Wall ◽  
Building Roof ◽  
Wind Resistance ◽  
Wind Pressures ◽  
Wall Openings ◽  
Numerical Simulation Technique

The external and internal wind pressure distribution characteristics on the roof surface of a low-rise gable-roofed building with wall openings are studied by means of the numerical simulation technique. The validity and accuracy of the numerical simulation is first demonstrated by comparison with the existing full-scale experimental results. In order to investigate the effect of wall opening locations on the pressure distribution, a parametric analysis is carried out to a typical gable-roofed building with different wall opening conditions. The analysis results indicate that wall opening locations have no significant effect on the external wind pressure but have considerable influence on the internal wind pressure. The cases of two opposite wall openings appear to be more favorable than those of single front wall openging for wind resistance of the building roof, if the angle of approaching wind flow from the inner normal line of the front wall is smaller than 90°.

Numerical Simulation of Wind Pressure Distribution on Structure Roofs with Suspension Solar Panels

2010 ◽  
Vol 163-167 ◽  
pp. 3943-3946
Author(s):  
Ying Zhou ◽  
Qi Lin Zhang
Keyword(s):  
Numerical Simulation ◽  
Wind Tunnel ◽  
Pressure Distribution ◽  
3D Model ◽  
Distribution Coefficients ◽  
Full Scale ◽  
Wind Pressure ◽  
Solar Panels ◽  
Wind Tunnel Experiments ◽  
Load Effect

This paper presents the results of full-scale numerical wind tunnel tests of wind pressure on structure roofs with suspension solar panels. Solar roof project is popularized in this century. Solar panels are suspended above the structure roof. So the wind load effect on the structure roof is varied. The wind tunnel experiments are often expensive. A 3D model is introduced and solved using ADINA. The wind pressure distribution coefficients are calculated.

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