Wind Directional Effect on a Single Storey House Using Educational Wind Tunnel

Wind tunnel testing of single-storey isolated building with 1: 100 scale down model was carried out in an open circuit wind tunnel without roughness elements facilities. The gable roof building model with 30˚ roof pitch was studied for wind directions of 0˚, 30˚, 45˚, 60˚ and 90˚. Pressure measurements were performed on all the walls and the roof (Zone 1, 2, 3, 4 and 5) of the building model with wind speed of 12 m/s. The results showed that the high suctions were generally induced by the 90˚ wind direction for Zone 1 and 60˚ and 90˚ wind directions for Zone 2. Mostly, high suction was also observed in case of 45˚ and 60˚ wind direction in Zone 3. In zone 4 and zone 5, high suction was generally induced by the 0˚ wind direction.

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Research on the Characteristics of Wind Load on L-Shape High-Rising Building

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.501-504.925 ◽

2014 ◽

Vol 501-504 ◽

pp. 925-931 ◽

Cited By ~ 1

Author(s):

Jian Guo Zhang ◽

Hui Min Zhuang

Keyword(s):

Wind Tunnel ◽

Frequency Domain ◽

Wind Direction ◽

Current Practice ◽

Pressure Measurements ◽

Current Load ◽

Research Results ◽

The Mean ◽

Wind Pressures ◽

Fluctuating Wind

The mean and fluctuating wind pressures on an L-shape high-rising building were obtained through simultaneous pressure measurements in a wind tunnel. The shape coefficients on each surface and their variations with wind direction are investigated, which are more detailed than current load codes. Considering that there may be two composition forms, namely integrated-type and separated-type, when an L-shape high-rising building is structurally designed, the amplitude and frequency-domain characteristics of the base moment in along wind, across wind and torsion direction of the above two types are presented respectively. The research results show that the change regularities of shape coefficients on each surface with wind direction are different from each other and current practice using the shape coefficients of a certain wind direction to structurally design is worth discussing; the characteristics of three directions base moments on an integrated-type L-shape high-rising building are rather complicated and those on a separated-type building appear as obvious interfering effects.

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Variations in Optical Sensor Pressure Measurements due to Temperature in Wind Tunnel Testing

Journal of Aircraft ◽

10.2514/1.40715 ◽

2009 ◽

Vol 46 (4) ◽

pp. 1314-1318 ◽

Cited By ~ 11

Author(s):

Andrei Vladimir Popov ◽

Ruxandra Mihaela Botez ◽

Mahmoud Mamou ◽

Lucian Teodor Grigorie

Keyword(s):

Wind Tunnel ◽

Optical Sensor ◽

Wind Tunnel Testing ◽

Pressure Measurements ◽

Tunnel Testing

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Wind Tunnel Test of Symmetrical Twin-Tower Tall Building Model

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.919-921.518 ◽

2014 ◽

Vol 919-921 ◽

pp. 518-522

Author(s):

Jian Guo Zhang ◽

Hui Min Zhuang

Keyword(s):

Wind Tunnel ◽

Root Mean Square ◽

Wind Direction ◽

Wind Tunnel Test ◽

Mean Value ◽

Tall Building ◽

Mean Square ◽

Building Model ◽

Moment Coefficient ◽

Peak Value

In this paper, taking symmetrical twin-tower tall building model as an example, a wind tunnel test with simultaneous surface pressure measurement, in 7 wind directions, was carried out. Integration of the surface pressures leads to base moment coefficient, of which the amplitude and frequency-domain characteristics were analyzed and compared with those of single tall building model. The result shows that mean value and root mean square of the interfering tower, in all wind directions, are basically the same as those of single tower, while in 0o wind direction, they differ greatly; mean value and root mean square of the interfered tower differ significantly, in every wind directions, from those of single tower. In 0o wind direction, the reduced spectrum of along-wind and across-wind base moment coefficient is greatly different from that of the single tower; in 90o wind direction, the along-wind base moment coefficient reduced spectrum for interfered tower is different from Davenport spectrum, while the peak value of across-wind base moment coefficient is half the corresponding value of single tower.

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