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Analysis of combustion modeling tools using DNS of a non-premixed turbulent wall-jet

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.120
pages 115-120

Zeinab Pouransari
Linne FLOW Centre, Dept. of Mechanics, Royal Institute of Technology SE-100 44 Stockholm, Sweden

Luc Vervisch
CORIA - CNRS & INSA Rouen, BP 8, 76801 Saint-Etienne-du-Rouvray, France

Arne V. Johansson
Linne FLOW Centre, Dept. of Mechanics, Royal Institute of Technology SE-100 44 Stockholm, Sweden

Sinopsis

Three-dimensional Direct Numerical Simulation (DNS) is used to study reaction in a non-premixed turbulent plane wall-jet. The flow is compressible and involves a reaction between an oxidizer and a fuel species The main objective of this study is to use DNS for validation and evaluation of different non-premixed combustion modeling tools. As the first step of this assessment, we have focused on RANS modeling aspects, distinguishing both the heat-release effects and the influences due to the presence of solid-walls. The present study adds to our previous knowledge on the behavior of models in different flow geometries.

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