Selle, Laurent C. and Bellan, Josette (2008) Modeling Requirements for LES of Fully Multicomponent Fuel Flows. In: 46th AIAA Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2008-983. ISBN 978-1-62410-128-1. https://resolver.caltech.edu/CaltechAUTHORS:20200506-071125715
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Abstract
The Large Eddy Simulation (LES) equations for multi-component (MC) fuel two-phase flow are derived from the Direct Numerical Simulation (DNS) equations by filtering the DNS equations using a top-hat filter. The filtered equations contain two categories of subgrid-scale (SGS) terms that must be modeled: (1) SGS terms and (2) terms representing the 'LES assumptions'. In contrast to single-component (SC) fuels, it is shown that two LES formulations, rather than a single one, are possible, and these formulations are not equivalent. Assumptions not present in corresponding SC LES equations are examined and assessed. Criteria are proposed to select the formulation best suited for LES. These criteria are used in conjunction with evaluations based on a DNS database and lead to the final LES equations. This analysis represents the precursor to a future study for modeling the MC LES equations.
| Item Type: | Book Section | ||||||
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| Additional Information: | © 2008 by California Institute of Technology. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. | ||||||
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| DOI: | 10.2514/6.2008-983 | ||||||
| Record Number: | CaltechAUTHORS:20200506-071125715 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200506-071125715 | ||||||
| Official Citation: | Modeling Requirements for LES of Fully Multicomponent Fuel Flows Laurent Selle and Josette Bellan 46th AIAA Aerospace Sciences Meeting and Exhibit. January 2008; doi: 10.2514/6.2008-983 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 103012 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 06 May 2020 16:19 | ||||||
| Last Modified: | 16 Nov 2021 18:17 |
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