AIR BUBBLE ELIMINATION METHODS FOR VERTICAL VISUALIZATION APPARATUS OF INTERNAL FLOW IN TURBINE ROTOR

摘要

Vertical visualization apparatus of internal flow in turbine rotor is successful to research on internal flow of radial turbine, pump-turbine, etc. But in experiment research the forming and development of air bubble has severe effect on photoing relative flow trace and pictures, and analysis of internal flow. This paper will report the effective air bubble elimination methods developed by authors in recent years.