Abstract
This paper deals with experimental and numerical simulation of boundary layer on a low pressure turbine blade. The purpose of our study is to maintain or increase the effeciency even for reduced solidity by taking advantage of wake from upstream cascade to suppress separation bubble on the sucssion surface. Therefore it is very important to clarify sepalation-bubble transition with and without wake-passing. Boundary layer mesurement is first conducted used of hot-wire-anemometer followed by large-eddy-simulation, in paticular, focused on unsteady phenomena in the sepalation-bubble transition process.
