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为研究强风作用下的储料罐的抗风性能,以强风区某工程拌和站储料罐为对象,基于商用软件FLUENT,采用CFD数值模拟方法,对储料罐单罐和多罐串并列排放进行了二维数值模拟,对比了不同角度下储料罐的受力性能,得到了不同间距排列下储料罐的阻力系数和升力系数拟合公式,并对储料罐的涡振性能进行了分析。结果表明:双罐绕流分析情况下,双罐并列排放时所受合力较大,不同排列组合工况下涡振发振风速较高,涡振发生的可能性较小;三罐并列情况下,三罐中的阻力系数均较单罐阻力系数大,且中间罐阻力系数较边罐大;多罐排列情况下,中间罐阻力系数可取0.92,边罐阻力系数可取0.60进行抗风验算。
In order to study the wind resistance performance of storage tank under strong wind, taking the storage tank at a mixing station in a strong wind area as an example, based on the commercial software FLUENT, the CFD numerical simulation method was used to simulate the discharge of single tank and multi- The two-dimensional numerical simulation is carried out to compare the mechanical performance of the storage tank under different angles. The drag coefficient and the lift coefficient fitting formula of the storage tank under different pitches are obtained, and the vortex vibration performance of the storage tank analysis. The results show that under the circumstance of double-tank flow analysis, the combined force of two tanks when they are discharged side by side is greater, and the wind speed of vortex vibration is higher under different combinations and combinations, and the vortex vibration is less likely to occur. , The drag coefficient in three tanks is larger than the drag coefficient in single tank and the drag coefficient in middle tank is larger than that of side tank. In multi-tank arrangement, the drag coefficient in middle tank is 0.92, and the drag coefficient in side tank is 0.60 for wind resistance checking.