Tested and studied in this paper is the variation relationship of gas liquid two phase Strouhal number when a gas liquid two phase vortex street occurs for two types of T shaped cylinder in a vertically upward gas liquid flow.

• 试验研究了两种规格的T形柱体在垂直上升气液两相流中发生气液两相涡街时，气液两相斯托拉赫数的变化规律。