Mechanisms of particle deposition around film cooling holes on nozzle guide vanes in aero-engines

Key Points

• Particle deposition significantly affects the heat transfer characteristics around film cooling holes, impacting overall engine efficiency.
• Analysis of fluid dynamics reveals how specific designs of nozzle guide vanes enhance or hinder cooling effectiveness during operation.
• Investigation on different particle sizes shows that smaller particles deposit less near the cooling holes compared to larger ones, indicating optimal design choices.
• Findings may enable improved cooling strategies in aero-engine designs, reducing thermal fatigue and enhancing performance.