Flame structure analysis and composition space modeling of thermodiffusively unstable premixed hydrogen flames — Part II: Elevated pressure

2021 ◽  
pp. 111808
Author(s):  
Xu Wen ◽  
Thorsten Zirwes ◽  
Arne Scholtissek ◽  
Hannes Böttler ◽  
Feichi Zhang ◽  
...  
Keyword(s):  
Structure Analysis ◽  
Flame Structure ◽  
Elevated Pressure ◽  
Composition Space ◽  
Space Modeling

Local flame structure analysis in turbulent CH4/air flames with multi-regime characteristics

2019 ◽  
Vol 210 ◽  
pp. 426-438 ◽  
Author(s):  
David Butz ◽  
Sandra Hartl ◽  
Sebastian Popp ◽  
Steffen Walther ◽  
Robert S. Barlow ◽  
...  
Keyword(s):  
Structure Analysis ◽  
Flame Structure

scholarly journals X-ray computed tomography for flame-structure analysis of laminar premixed flames

2019 ◽  
Vol 200 ◽  
pp. 142-154 ◽  
Author(s):  
Emeric Boigné ◽  
Priyanka Muhunthan ◽  
Danyal Mohaddes ◽  
Qing Wang ◽  
Sadaf Sobhani ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Structure Analysis ◽  
Flame Structure ◽  
Premixed Flames ◽  
X Ray ◽  
X Ray Computed

Coupled Structure and Radiation Analysis of Acetylene/Air Flames

1992 ◽  
Vol 114 (2) ◽  
pp. 487-493 ◽  
Author(s):  
J. P. Gore ◽  
U.-S. Ip ◽  
Y. R. Sivathanu
Keyword(s):  
Heat Loss ◽  
Structure Analysis ◽  
Radiative Heat ◽  
Source Term ◽  
Flame Structure ◽  
New Method ◽  
Visible Radiation ◽  
Radiative Heat Loss ◽  
The Mean ◽  
Good Agreement

A coupled radiation-structure analysis of turbulent, non-premixed, strongly radiating acetylene/air flames is described. The analysis extends the laminar flamelet concept to include the effects of local radiative heat loss/gain. A new method for the calculation of the radiative source term is presented. New measurements of mean and fluctuating emission temperatures and radiation intensities, and previous data concerning flame structure are used to evaluate the predictions. Results show good agreement between measurements and predictions of flame structure similar to past uncoupled calculations. The mean emission temperatures and the mean visible radiation intensities are substantially underpredicted by the uncoupled analysis. The coupled calculations provide reasonable estimates of both quantities.

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