In this paper, the Strouhal number of the triangle cylinder, occurring in gas-liquid vortex street (the Karmen vortex street), are studied experimentally in horizontal gas-liquid flow.

• 摘要研究气液两相斯特罗哈数，可为利用气液两相涡街特性测量气液两相流量与组分开辟一种新方法，也可开发出适用于气液两相流体流量等参数测量的新仪表。