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Extension polydisperse pour la description Euler-Euler des écoulements diphasiques réactifs
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mossa, J. B. |
| Copyright Year | 2005 |
| Abstract | La comprehension des phenomenes de combustion est la cle des avancees en matiere d'amelioration de puissance, de gains de de performance et de reduction de consommation mais conditionne egalement directement le controle de la formation des polluants. Par ailleurs, les systemes d'injection actuels de carburant liquide generent des gouttes qui ne sont pas toutes de meme diametre et qui generent, apres evaporation, des zones plus ou moins riches que celles initialement prevues. Afin de comprendre et controler les phenomenes dynamiques d'un ecoulement dyphasique reactif, une extension polydisperse de modeles existants destines a la simulation des grandes echelles est proposee. Le modele est ensuite teste et confronte a des resultats de reference sur trois configurations representatives (analytique, experimentale et industrielle). Enfin, une analyse de l'apport du modele et plusieurs pistes sont proposees pour conclure ce travail. ABSTRACT : Understanding combustion phenomena is the key of progress in terms of power improvement, better performance and reduction of consumption but also directly conditions the control of the pollutants formation. Moreover, the current systems of liquid fuel injection generate drops with different diameters which generate, after evaporation, more or less rich zones than those initially expected. In order to understand and control the dynamic phenomena of a reactive two-phase flow, a polydisperse extension of existing models intended for large eddt simulation is proposed. The model is then tested and compared with reference results on three representative configurations (analytical, experimental and « real geometry »). Lastly, an analysis of the contribution of the model and several tracks are proposed to conclude this work. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ethesis.inp-toulouse.fr/archive/00000307/01/mossa.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
