Abstract：Wind tunnel tests in smooth and turbulent flow, with and without a building were carried out to detect static pressure fields in this paper. A dimensionless method is proposed to solve the problem that static pressure can hardly be measured exactly, therefore the distributions of static pressure fields are investigated, dynamic characteristics of different flow areas around a building are analyzed in details by amplitude domain and frequency domain analysis methods, distribution formulas of main directions are given, and then the static and dynamic boundaries are concluded. The tests indicate that the natural modes of the gas column in the wind tunnel may be evidently excited in some work conditions and then test results may be misled; fluctuating in windward area depends on velocity fluctuating of approach flow; fluctuating in leeward area is close to static pressure fluctuating in turbulent approach flow but there are more non-Gaussian characteristics in leeward area; periodic vibration of static pressure turns to be random vibration with larger amplitude in crosswind area with rising of surface roughness; the more rough surface is, the smaller static action and the bigger dynamic action of whole static pressure field will be. The distribution formulas can be used for many purposes such as measuring the reference static pressure in full-scale filed experiments and investigating wind-induced interference effect among buildings.
罗尧治;孙斌;洪江波. 建筑物周围风致静压场的分布及振动特性研究[J]. , 2013, 32(14): 1-10.
LUO Yao-zhi;SUN Bin;HONG Jiang-bo. Distribution and vibration characteristics of wind-induced static pressure field around a building. , 2013, 32(14): 1-10.
2013, Vol. 32 
