Thermal and aerodynamic investigation of innovative cooling designs of blade tips

Thesis

The blade tip is a particularly critical part of high-pressure turbine blades, as the hot gas leaking over it causes a loss of efficiency and degrades the blade. This tip degradation is often a limiting factor of engine life. For squealer designs, the pressure side rim near the trailing edge is particularly vulnerable due to its high surface area and highly complex local flow patterns, whilst also being a difficult region to cool. This thesis investigated the aerothermal performance of shr...

Expand abstract

Authors: Coelho Vieira, JA

• Type of award: DPhil
• Level of award: Doctoral
• Awarding institution: University of Oxford
• Language: English
• Keywords: shelf; cooling holes; slots; high-pressure; cooling; shelves; transonic; tip; slot; welding beads; rotor
• Subjects: Engineering