Based on the previous study of air -water and air -0# diesel oil systems

a futher study of the effects of fluid properties on shell -side two -phase flow pattern transitions with air -30 % glycerine water solution system is presented. The experimental results showed that liquid viscosity and surface tension have significant effects on the transition to annular flow and stratified -annular flow

but little effect on the transition to bubble flow. Liquid viscosity has no effect on the transition to intermittent flow

while surface tension has a slight effect. On the basis of physical concepts

an overall flow pattern map is constructed

which based on the data of air-water

air-0# diesel oil and air-30% glycerine water solution two-phase flow systems.