Details

Autor(en) / Beteiligte

• Kuenne, Guido
• Euler, Matthias
• Ketelheun, Anja
• Avdić, Amer
• Dreizler, Andreas
• Janicka, Johannes

Titel

A Numerical Study of the Flame Stabilization Mechanism Being Determined by Chemical Reaction Rates Submitted to Heat Transfer Processes

Ist Teil von

• Zeitschrift für physikalische Chemie (Neue Folge), 2015-05, Vol.229 (5), p.643-662

Ort / Verlag

Munich: De Gruyter Oldenbourg

Erscheinungsjahr

2015

Quelle

De Gruyter journals

Beschreibungen/Notizen

• Large Eddy Simulations of a turbulent lean premixed stratified burner are conducted in order to determine the physical mechanisms that dominate the flame stabilization close to burner walls. The purpose of this work is both to provide insight into the underlying physics as well as to check whether the deficiencies found in previous simulations are related to an inappropriate heat transfer treatment. The simulation utilizes a three-dimensional detailed chemistry database in order to capture the chemical reaction rates based on local mixing and thermal conditions. The study is supplemented by very accurate wall temperature measurements to remove the large uncertainty revealed in the past for this configuration. The results obtained from the simulations are evaluated by means of a qualitative illustration of the different flame stabilizations and comparisons with experimental data.