Loading...
Please wait, while we are loading the content...
Similar Documents
On Transport-Chemistry Interaction in Laminar Premixed CH4-Air Flames
| Content Provider | Semantic Scholar |
|---|---|
| Author | Skevis, George Goussis, Dimitris A. Mastorakos, Epaminondas |
| Copyright Year | 2004 |
| Abstract | A laminar premixed CH4-Air flame is analyzed with tools from the Computational Singular Perturbation method. The analysis focuses on the transport-chemistry interaction in the flame zone, considering lean, stoichiometric and rich mixtures. It is shown that transport has no influence in the directions in the phase space along which act the fastest chemical time scales. Diffusion starts becoming important in the directions along which act the intermediate chemical time scales, while along the slowest directions both diffusion and convection dominate. It is also demonstrated that the stoichiometry of the mixture has no significant effect on the dynamics along the fastest chemical directions, influencing the slow ones. In particular, the fast chemical time scales are not affected as the flammability limits are approached, the slow ones becoming slower in the lean/rich flames than in the stoichiometric. The identification of the transport-free chemically fastest directions is crucial for the simplification of the governing equations. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.combustion-institute.it/proceedings/proc2004/Session2/P11-Skevis%20et%20al..pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
