Visualization of gas-liquid two-phase flow in a metalic tube by neutron radiography method.

Visualization of two-phase flow were carried out by using a neutron radiography method, which is suited to visualize gas-water two-phase flow in a metalic tube. Nitrogen gas-water two-phase flow in a stainless steel tube and water boiling two-phase flow with and without a twist tape in a stainless steel tube were visualized.