|About this Abstract
||Materials Science & Technology 2019
||Sandphobic Thermal/Environmental Barrier Coatings
||Numerical Investigation of Particle Deposition in Gas Turbine Blades
||Nishan Jain, Luis Bravo, Anindya Ghoshal, Muthuvel Murugan, Alison Flatau, Michael J. Walock
|On-Site Speaker (Planned)
Gas turbine engine powered aircraft operating in harsh environments ingest sand particle during near-ground operation. The resultant particle-laden turbulent flow within the engine causes substantial degradation to the high-temperature turbine blades through high energy impact and deposition. To evaluate the deposition characteristics of these molten sand particulate, a functional physics based model is needed to resolve disparate scales present in such a complex multiphase flow. This study is aimed at developing an existing fundamental particle model to resolve particle impingement on the turbine blade under realistic operating conditions. Relevant contact line models from literature will be reviewed in order to obtain accurate contact dynamics and wettability characteristics between molten particulate and thermal barrier coating through inclusion of relevant physics. By providing improved predictions of particle adhesion, deformation and energy losses, the resulting numerical framework will help in identifying critical parameters governing the impact characteristics and the blade damage.