Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session F02: Turbulent Combustion II: Combustion Modeling
8:00 AM–9:57 AM,
Monday, November 19, 2018
Georgia World Congress Center
Room: B203
Chair: Xinyu Zhao, University of Conneticut
Abstract ID: BAPS.2018.DFD.F02.2
Abstract: F02.00002 : Comparison of Reduced-Order Manifold Approaches for Simulating a Turbulent Lifted Jet Flame
8:13 AM–8:26 AM
Presenter:
Bruce A Perry
(Princeton Univ)
Authors:
Bruce A Perry
(Princeton Univ)
Ruihong Chen
(Princeton Univ)
Michael E. Mueller
(Princeton Univ)
Reduced-order manifold approaches use assumptions about combustion mode to constrain the thermochemical state space to a low-dimensional manifold generated from one-dimensional component problems relevant for the assumed combustion mode. These models significantly reduce the computational cost associated with the simulation of turbulent combustion systems. In this work, reduced-order manifold models assuming the nonpremixed, premixed, and autoignition modes are all applied in Large Eddy Simulations of the Cabra flame, a lifted flame formed by a rich methane/air jet with a vitiated coflow generated by upstream lean premixed combustion of a hydrogen/air mixture. Due to the elevated temperature in the coflow, autoignition contributes the stabilization of the globally nonpremixed lifted flame, which challenges mode-dependent modeling approaches. Comparison of the predictions using these different approaches to the experimental data indicates that no single mode is able to adequately capture the multi-modal turbulent flame structure. The analysis indicates that a more general modeling framework that retains the benefits of low-dimensionality while relaxing the assumptions on combustion mode would lead to significantly improved predictions.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.F02.2
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700