周边干扰对煤气柜表面风压的影响

根据刚性模型风洞测压试验所得数据,研究了不同的周边干扰条件下柜体表面平均风压系数的变化规律,对比分析了不同柜体间距时干扰效应的变化情况。研究结果表明:干扰煤气柜位于柜体的正前方时,柜体迎风面平均风压系数显著减小;干扰煤气柜位于柜体的正后方时,柜体背风面平均风压系数会增大;两煤气柜相互平行时,柜体背风面平均风压系数会减小;柜体间距会对干扰效应产生影响,干扰效应随着柜体间距的变化而发生变化;在迎风面与侧风面,规范值有较高的安全储备;而在背风面,其安全储备略有不足。

Interference effect of mean wind pressure of gasholder

In order to study the variation regularity of mean wind pressure coefficients on gasholder with interference and the transformation of different distance of interference effect, pressure measurements were conducted in wind tunnel on a rigid structural model. Results showed that in the case the interferential gasholder was located in the front, the mean wind pressure coefficients of windward side would dramatically decrease; the interferential gasholder was located in the rear, the mean wind pressure coefficients of lee side would increase; two gasholder were parallel to each other, the mean wind pressure coefficients of windward side would decrease; distance had a influence on the interference effect, interference effect varid with changes of distance; the safety reserve of code values was sufficient on windward and crosswind side but slightly insufficient in windward side.