Abstract: A new model is proposed for predicting particle rebound and deposition in environments relevant to gas turbine engines. The model includes the following physical phenomena: elastic deformation, plastic deformation, adhesion, ...

Abstract: Timeaccurate numerical simulations were conducted on the aftloaded L1A lowpressure turbine airfoil at a Reynolds number of 22,000 (based on inlet velocity magnitude and axial chord length). This flow condition produces a ...

Abstract: Coal ash deposition was numerically modeled on a GEE3 high pressure turbine vane passage. A model was developed, in conjunction with FLUENTâ„¢ software, to track individual particles through the turbine passage. Two sticking ...

Abstract: An accelerated deposition test facility was operated with four different coal ash species to study the effect of ash composition on deposition rate and spatial distribution. The facility seeds a combusting (natural gas) ...

Abstract: The role of absolute pressure in deposition testing is reviewed from first principles. Relevant dimensionless parameters for deposition testing are developed and dynamic similarity conditions are assessed in detail. Criteria ...