Session: 33-03 Modeling deposition and erosion

Paper Number: 129243

129243 - Calibration and Validation of a Novel Particle Rebound and Deposition Model 

Environmental particles (e.g., sand, volcanic ash and other airborne dust) ingested into a gas turbine engine can significantly reduce engine performance, and even lead to complete power loss.  This is particularly true for helicopters during taking-off, hovering, and landing.  To predict this degradation quantitatively, a novel particle rebound/deposition model has been developed based on measured particle rebound characteristics and non-dimensional parameter analysis from more than seventy particle deposition tests relevant to engine hot-sections. 

The model was calibrated/validated with the experimental data, where sand particles impinged on square ceramic coupons at a velocity of 215 m/s and a temperature range of 1300 – 1580 K.  Numerical simulations were carried out for these testing cases, and the particle impact rate on the coupon for each test case was obtained with a user defined function.  With the particle impact rates on the coupon, the experimental particle deposition rates based on the total released particles, and the operating conditions, the coefficient of a defined model formulation was obtained.  The calibrated rebound and deposition model was compiled and linked to the flow solver, and the predicted results were in good agreement with the experimental data.  With added model functions, the distributions of deposited particle parameters on the coupon surface are provided.

Presenting Author: Masaya Suzuki Japan Aerospace Exploration Agency

Presenting Author Biography: Dr. Lei-Yong Jiang obtained his Ph.D. degree from Institute for Aerospace Studies University of Toronto in 1995, and has been in the combustion and propulsion S&T field over 30 years with more than 130 publications and adjunct professorships from two Canadian universities. He is an active member of Combustion Fuels & Emissions Committee and the previous Chair of Coal, Biomass, Hydrogen & Alternative Fuels Committee of International Gas Turbine Institute. His research interests include combustion, CFD applications to solve various reacting and non-reacting engineering problems, impact of environmental particles on gas turbine engines, laser diagnostics, and experimental combustion.

Authors:

Leiyong Jiang National Research Council
Prakash Patnaik Aerospace Research Center, National Research Council Canada
Masaya Suzuki Japan Aerospace Exploration Agency