Abstract
Advances in physical models, numerical methods, and computational power together have brought large-eddy simulation (LES) to the point where it warrants serious consideration for computing in-cylinder turbulent flows. This article includes: a discussion of LES and how it differs from Reynolds-averaged Navier Stokes (RANS) modeling; motivation for transitioning to LES for in-cylinder flow in IC engines; and quantitative results for two motored engine configurations. 'Dynamic' sub-grid-scale stress models are emphasized, and results from two different numerical approaches are discussed. Compared to RANS, LES requires a low level of empirical input, provides more complete information on in-cylinder flow structure, and makes previously inaccessible phenomena (e.g., cycle-to-cycle variability) amenable to analysis.
Original language | English (US) |
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Pages (from-to) | 175-185 |
Number of pages | 11 |
Journal | Revue de l'Institute Francais du Petrole |
Volume | 54 |
Issue number | 2 |
State | Published - Jan 1 1999 |
All Science Journal Classification (ASJC) codes
- Ocean Engineering