Thursday, June 29, 8:00 AM - 10:00 AM

Technical Session

[{"firstName":"Khosro","lastName":"Mollahosseini","email":"khosro.MollaHosseini@honeywell.com","company":null},{"firstName":"Mahmoud","lastName":"Mansour","email":"mahmoud.mansour@honeywell.com","company":null},{"firstName":"Frederic","lastName":"Goenaga","email":"frederic.goenaga@rolls-royce.com","company":null}]

Presentations

Note: Presentations may start a few minutes before the time listed in the schedule.

The four papers in this session cover the following topics:

1- Efficient Unsteady Simulations of Multistage Turbines Using a Flexible Frequency-Domain Approach validated with the MT1turbine test case.

2- The influence of geometrical diffuser parameters on the diffuser exhaust-hood system performance in pressure recovery, pressure loss, and flow-field asymmetry is reported. The overall pressure recovery, as well as the pressure loss of the diffuser exhaust hood system, can be optimized through asymmetric diffuser shape modifications.

3- Numerical study of the effects of freestream turbulence and Reynolds number on the aerodynamics of a turbine airfoil using a high-order-accurate LES code has been reported. The differences in the vortex shedding behavior at the trailing edge of the airfoils with variation in Reynolds number, could have significance for turbines in operating engines. The simulation was validated against the experimental data of near wall temperature distribution and wake profiles.

4- The benefits of using Additive Manufacturing for Gas Turbine hot gas path cooling design to derive cooling flow savings and reduced metal temperature for better life has been reported. Three hot gas path components in SGT800 turbine were redesigned with only Additive Manufacturing in-wall cooling schemes, tested and validated under the real engine operation environment.