Accession Number : ADP007712

Title :   The Coherent Flamelet Model for Propulsion Applications,

Corporate Author : CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CHATENAY-MALABRY (FRANCE)

Personal Author(s) : Veynante, D. ; Lacas, P. ; Boudier, P. ; Dillies, B. ; Samaniego, J. M.

Report Date : FEB 1992

Pagination or Media Count : 14

Abstract : This article reports our recent progress in the modeling of turbulent combustion for propulsion applications. The description of the reactive flow relies on the flamelet concept and uses a transport equation for the flame surface density. The coherent flamelet description which has evolved from a series of numerical and experimental studies is first reviewed and its recent improvements are explained. We then focus on the premixed version of the model. Two applications of relevance to aeronautical propulsion are then described. The first concerns a flame stabilized by a hot stream of combustion products. The second deals with a ramjet configuration comprising two lateral injection jets. In both cases the model predictions are compared with experiments. It is shown that the model provides viable representations of these two cases.

Descriptors :   *COMBUSTION PRODUCTS, *TURBULENCE, BOLTZMANN EQUATION, COMBUSTION, CONFIGURATIONS, DENSITY, EQUATIONS, FLAMES, FLOW, INJECTION, MODELS, PREDICTIONS, STREAMS, SURFACES, TRANSPORT.

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE