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Direct simulation of turbulent combustionUnderstanding and modeling of turbulent combustion are key problems in the computation of numerous practical systems. Because of the lack of analytical theories in this field and of the difficulty of performing precise experiments, direct simulation appears to be one of the most attractive tools to use in addressing this problem. From Sep. 1989 - Sep. 1990, the following problems were studied using direct simulation but also experiments and theoretical models: (1) the influence of curvature on premixed flame fronts; (2) the construction of a model for the flame stretch based on direct simulation and multifractal analysis; and (3) the simulation of the interaction between random flow field and a flame front. The general objective was to improve knowledge of turbulent combustion but also to use this information for turbulent combustion models. The transfer of direct simulation results towards models is also in progress. A submodel to evaluate the flame stretch was derived from the present study and incorporated in the Coherent Flame model used in France for piston and aircraft engines.
Document ID
19930073987
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Poinsot, Thierry J.
(Ecole Centrale des Arts et Manufactures Chatenay-Malabry, France)
Date Acquired
August 16, 2013
Publication Date
February 1, 1991
Publication Information
Publication: Annual Research Briefs, 1990
Subject Category
Inorganic And Physical Chemistry
Accession Number
93N71434
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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