On the basis of a large number of experimental data, a universal equation for gas-liquid Strouhal number are obtained.

• 通过实验；分析了三角形柱体在水平管的气液两相流中；发生气液两相涡街时；气液两相斯特罗哈数的变化规律；得出了气液两相斯特罗哈数的通用关系式.