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本文研究了在并列双圆柱的正前方或正后方加上一个等直径的圆柱，组成等边三角形排列的三圆柱的脉动压力分布，着重研究前柱或后柱对并列双圆柱脉动压力分布的影响，同时还在相同的试验条件下，进行了并列双圆柱和三圆柱脉动压力的比较。结果表明，并列双圆柱前方或后方加上第三个圆柱形成的等边三角形排列的三圆柱，受影响最严重的是后排圆柱，脉动压力分布出现了严重的不对称，内侧的压力脉动极其强烈，外侧的压力脉动很弱，与时均压力分布有很好的对应关系。
In this paper, the pulsating pressure distribution of three cylinders with equilateral triangle is added in front of or directly behind the parallel double cylinder, and the influence of front column or rear column on pulsating pressure distribution of parallel double cylinder is studied. , But also in the same test conditions, the parallel double cylinder and triple cylinder pulsating pressure comparison. The results show that the three cylinders with equilateral triangle formed by the third cylinder are added in front of or behind the double cylinder. The most serious impact is the rear cylinder, and the pressure distribution in the pulsation has a serious asymmetry. The pressure pulsation inside is extremely extreme Strong, the external pressure pulsation is very weak, and the pressure distribution of the hourly has a good correspondence.