.... The leakage flow through the tip gap measurably reduces turbine performance and causes high thermal loads near the blade tip region. Several studies focused on the tip leakage flow to clarify the flow-physics in the past. The “squealer” design is one of the most common designs to reduce the adverse effects...

... between the mid chord and trailing edge of the blade. This increased tip leakage flow pushes the tip vortex toward the adjacent blade. This research has been supported by the Micro Thermal Systems Center of KOSEF and by GE Transportation, Aircraft Engines. Special thanks are given...