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对受气液两相流横向冲刷的顺列管束旋涡脱离特性进行了实验研究。实验中通过测量顺列管束所受升力的频谱特性来确定涡街的脱离频率。实验中来流雷诺数的范围为 1.6× 10 4～ 8× 10 4,截面含气率的范围为 0～ 0 .30 ,横向管间距比 T/ D=1.5、 2 .0、 3.0 ,纵向管间距比 P/ D=2 .0、 3.0、 4.0。实验结果揭示了顺列管束涡街特性和斯特罗哈数随含气率、管间距、两相雷诺数的变化规律
The vortex detachment characteristics of the in-line tube bundle subjected to lateral scrubbing of gas-liquid two-phase flow were experimentally studied. In the experiment, the frequency of the vortex shedding is determined by measuring the spectral characteristics of the lift of the tube bundle. Reynolds number in the experiment ranged from 1.6 × 10 4 to 8 × 10 4, gas content in the cross section ranged from 0 to 0.30, transverse tube spacing ratio T / D = 1.5, 2.0, 3.0, longitudinal tube Pitch ratio P / D = 2.0, 3.0, 4.0. The experimental results reveal the variation of the characteristics of the vortex street and the Strobel number of the tube bundle with the gas-bearing ratio, the distance between pipe and the two-phase Reynolds number