A Unified Description of Flame Topologies at Different Turbulent Combustion Regimes Using Computational Singular Perturbation

Tingas, Stathis; Im, Hong

Abstract

Identifying turbulent flame topologies for unambiguous deter-mination of key flame quantities is a challenging task for high Karlovitz number conditions in which different scalar variable sexhibit drastically distinct characteristics. The present study explores a unified way to characterize the flame topologies and its important observable quantities by the identification of representative dynamical features using the computationalsingular perturbation (CSP) technique. Various algorithmic toolsof CSP are applied on DNS datasets of turbulent premixed hydrogen/air flames at different combustion regimes and the results are compared with conventional flame analysis tools.

Citation

Tingas, S., & Im, H. (2019, May). A Unified Description of Flame Topologies at Different Turbulent Combustion Regimes Using Computational Singular Perturbation. Paper presented at 17th International Conference on Numerical Combustion, Aachen, Germany

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: 17th International Conference on Numerical Combustion
• Start Date: May 6, 2019
• End Date: May 8, 2019
• Deposit Date: Sep 15, 2020
• Public URL: http://researchrepository.napier.ac.uk/Output/2686336
• Publisher URL: http://nc19.itv.rwth-aachen.de/