Wind Tunnel Test Study on Particle Damping Technology

2020 ◽  
pp. 225-291
Author(s):  
Zheng Lu ◽  
Sami F. Masri ◽  
Xilin Lu
Keyword(s):  
Wind Tunnel ◽  
Wind Tunnel Test ◽  
Test Study ◽  
Particle Damping

The Test Study of Shape Coefficient of Low-Rise Buildings Roof with Different Positions of Openings

2012 ◽  
Vol 446-449 ◽  
pp. 3092-3095
Author(s):  
Ji Zhou ◽  
Yuan Ming Dou ◽  
Xi Yuan Liu ◽  
Ji Shu Sun
Keyword(s):  
Wind Tunnel ◽  
Pressure Measurement ◽  
Wind Tunnel Test ◽  
Wind Pressure ◽  
Wind Damage ◽  
Building Roof ◽  
Wind Resistance ◽  
Shape Coefficient ◽  
Test Study ◽  
The One

The majority of low-rise buildings are generally susceptible to wind damage in previous wind disaster, thus it is necessary to gain understanding of the characteristics of wind pressure for these types of building. Based on Wind Tunnel Test, the shape coefficients were studied with pressure measurement on gable roofs laying aside purlin of low-rise building roof in this paper. Three aspects were arerespectively discussed: the lows of shape coefficients and the shape coefficient value with specific wind angle on roofs of the houses completely closed, the house opened doors and windows and the house opened the hole on roof with different wind angle. The laws of shape coefficients were propounded for low-rise buildings with different positions of openings in contrast to load code. A detailed analysis of the experimental results shows that the shape coefficients will increase notably when there are the openings on metope and on roof, and the one is outward of roof, another is inward of roof. It is expected that the results should be valuable for the wind-resistance design of low-rise buildings.

Wind tunnel test study on wind load coefficients variation law of heliostat based on uniform design method

Solar Energy ◽  
2019 ◽  
Vol 184 ◽  
pp. 209-229 ◽  
Author(s):  
Qiwei Xiong ◽  
Zhengnong Li ◽  
Haiyin Luo ◽  
Zhefei Zhao
Keyword(s):  
Wind Tunnel ◽  
Design Method ◽  
Uniform Design ◽  
Wind Tunnel Test ◽  
Wind Load ◽  
Test Study ◽  
Uniform Design Method

Wind Tunnel Test Study of Estimation Method on Peak Wind Pressure of Low-Rise Buildings

2014 ◽  
Vol 488-489 ◽  
pp. 813-816
Author(s):  
Min Duan ◽  
Jia Qi Wang ◽  
Xiu Zhen Wang ◽  
Ping Shi Li
Keyword(s):  
Wind Tunnel ◽  
Average Method ◽  
Estimation Method ◽  
Wind Tunnel Test ◽  
Wind Pressure ◽  
Short Sample ◽  
Test Study ◽  
Extreme Wind ◽  
Ideal Method ◽  
Peak Value

In response to the estimation of the peak values of wind pressure on the maintenance structure, the results with TTU low-rise building standard model of different methods are analyzed and compared. The results show: the results of peak-to-average method and Cook & Mayne method are very close for the long sample estimation of the peak values of wind pressure, the former is the most ideal method for estimation of extreme wind pressure; For short sample estimation, the peak-to-average method fails because the sampling is not long enough, but the Cook & Mayne method can estimate accurate peak value of wind pressure by the short sample (the corresponding prototype time not less than 600s); The peak factor method based on the assumption of normal distribution is not applicable to low-rise building and the results are relatively dangerous.

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