Unsteady Flows and Component Interaction in Turbomachinery

S Salvadori, M Insinna, F Martelli - International Journal of …, 2024 - mdpi.com
Unsteady component interaction represents a crucial topic in turbomachinery design and
analysis. Combustor/turbine interaction is one of the most widely studied topics both using …

Hybrid RANS-LES modeling of the aerothermal field in an annular hot streak generator for the study of combustor–turbine interaction

A Andreini, T Bacci, M Insinna… - … for Gas Turbines …, 2017 - asmedigitalcollection.asme.org
The adoption of lean-burn technology in modern aero-engines influences the already critical
aerothermal conditions at turbine entry, where the absence of dilution holes preserves the …

Clocking effects of inlet nonuniformities in a fully cooled high-pressure vane: A conjugate heat transfer analysis

D Griffini, M Insinna, S Salvadori… - Journal of …, 2016 - asmedigitalcollection.asme.org
A high-pressure vane (HPV) equipped with a realistic film-cooling configuration has been
studied. The vane is characterized by the presence of multiple rows of fan-shaped holes …

A ring-vortex actuator disk method for wind turbines including hub effects

R Bontempo, M Manna - Energy Conversion and Management, 2019 - Elsevier
Due to its robustness and simplicity, the simple actuator disk is still the most used and
popular method for performance analysis of horizontal axis wind turbines. However, the hub …

Study of Combustor–Turbine Interactions by Performing Coupled and Decoupled Hybrid RANS-LES Simulations under Representative Engine-like Conditions

SG Tomasello, R Meloni, L Andrei, A Andreini - Energies, 2023 - mdpi.com
Combustion–turbine interaction phenomena are attracting ever-growing interest in recent
years. As a matter of fact, the strong unsteady and three-dimensional flow field that …

Numerical Study of Combustor-Turbine Interaction by Using Hybrid RANS-LES Approach

SG Tomasello, A Andreini… - … Expo: Power for …, 2022 - asmedigitalcollection.asme.org
The complex flow field of gas turbine lean combustors is meant to reduce NOx emissions
and maintain a stable flame by controlling the local temperature and promoting high …

Numerical prediction of heat transfer characteristics on a turbine nozzle guide vane under various combustor exit hot‐streaks

Z Mansouri - Heat Transfer, 2022 - Wiley Online Library
The precise prediction of the aerothermal conditions at the outlet of modern combustors of
aero engines is of primary interest in the aerothermal design of high‐pressure turbines. The …

A methodology for steady and unsteady full-engine simulations

L Romagnosi, Y Li, M Mezine… - … Expo: Power for …, 2019 - asmedigitalcollection.asme.org
With the increase of computational power, more sophisticated computational methods can
be used, larger systems simulated, and complex phenomena predicted more reliably …

Advanced combustor exit plane temperature diagnostics based on large eddy simulations: Going further than the radial temperature distribution factor

C Koupper, L Gicquel, F Duchaine… - Flow, Turbulence and …, 2015 - Springer
The accurate description and flow calibration at the exit of a gas turbine combustor is a key
point of turbine design. Indeed, the temperature field at the turbine inlet directly impacts both …

Effects of realistic inflow conditions on the aero-thermal performance of a film-cooled vane

M Insinna, D Griffini, S Salvadori… - 11 th European …, 2015 - euroturbo.eu
A high-pressure vane equipped with a realistic film-cooling configuration has been studied.
The vane is characterized by the presence of multiple rows of fan-shaped holes along …