PIV Measurement of Velocity Field in T-junction Piping System and Effect of Flow Rate Ratio

Abstract

In order to clarify the effect of flow on pipe wall thinning due to flow-accelerated corrosion at a T-shaped pipe junction, we measured the flow field using particle image velocimetry. In the experiment, a T-shaped pipe with a pipe diameter ratio of 1 between the branch pipe and the main pipe was used, and the effect of the flow ratio between the branch pipe and the main pipe was investigated. It was clarified that the inflow from the branch pipe was separated at the connection with the main pipe to form a recirculation region of the flow, and that the separation region of the flow increased as the flow rate from the branch pipe increased.