CFD analysis and application of dynamic mode decomposition for resonant-mode identification and damping in an SGT-100 DLE combustion system
Paper i proceeding, 2015

This paper presents result of a turbulent reacting flow simulation based on a hybrid Unsteady Reynolds Averaged Navier Stokes/Large Eddy Simulation model (Menter’s SAS-SST model) applied to an experimental version of an industrial gas turbine combustion chamber at a pressure of 6 bar. The kinetics were represented by a recently developed in-house 4-step reaction mechanism using 7 species. A reasonably good agreement with measurements is found concerning velocity, temperature, pressure loss, mixture fraction and fuel mass fraction. The dynamic mode decomposition algorithm is also used here in order to identify some resonant modes and to quantify their respective frequency and damping. A number of low frequency modes with combustion dynamics included are observed and compared with the measurements.

DMD

Chemistry Reduction

Partially premixed turbulent flames

Large Eddy Simulation

Optimization

dynamic mode decomposition

industrial gas burner

Swirling flames

Författare

Abdallah Abou-Taouk

Chalmers, Tillämpad mekanik, Strömningslära

Suresh Sadasivuni

Daniel Lörstad

Bulat Ghenadie

Lars-Erik Eriksson

Chalmers, Tillämpad mekanik, Strömningslära

Proceedings of the 7th European Combustion Meeting

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Produktion

Energi

Ämneskategorier

Strömningsmekanik och akustik

ISBN

978-963-12-1257-0