Experimental study of the effect of turbulence on the structure and dynamics of a bluff-body stabilized lean premixed flame

2017 ◽  
Vol 36 (2) ◽  
pp. 1853-1859 ◽  
Author(s):  
Bikram Roy Chowdhury ◽  
Jason A. Wagner ◽  
Baki M. Cetegen
Keyword(s):  
Experimental Study ◽  
Bluff Body ◽  
Premixed Flame ◽  
Structure And Dynamics ◽  
Lean Premixed

scholarly journals Experimental Study on Bluff-Body Stabilized Premixed Flame with a Central Air/Fuel Jet

Energies ◽  
2017 ◽  
Vol 10 (12) ◽  
pp. 2011 ◽  
Author(s):  
Yiheng Tong ◽  
Shuang Chen ◽  
Mao Li ◽  
Zhongshan Li ◽  
Jens Klingmann
Keyword(s):  
Experimental Study ◽  
Bluff Body ◽  
Premixed Flame ◽  
Fuel Jet

Effect of hydrogen enrichment on swirl/bluff-body lean premixed flame stabilization

2020 ◽  
Vol 45 (18) ◽  
pp. 10906-10919 ◽  
Author(s):  
Shilong Guo ◽  
Jinhua Wang ◽  
Weijie Zhang ◽  
Meng Zhang ◽  
Zuohua Huang
Keyword(s):  
Bluff Body ◽  
Flame Stabilization ◽  
Premixed Flame ◽  
Lean Premixed ◽  
Hydrogen Enrichment

Structure and dynamics of CH2O, OH, and the velocity field of a confined bluff-body premixed flame, using simultaneous PLIF and PIV at 10 kHz.

2019 ◽  
Vol 37 (2) ◽  
pp. 1461-1469 ◽  
Author(s):  
Christopher A. Fugger ◽  
Sukesh Roy ◽  
Andrew W. Caswell ◽  
Brent A. Rankin ◽  
James R. Gord
Keyword(s):  
Velocity Field ◽  
Bluff Body ◽  
Premixed Flame ◽  
Structure And Dynamics

Global hydrodynamic instability and blowoff dynamics of a bluff-body stabilized lean-premixed flame

2021 ◽  
Vol 33 (3) ◽  
pp. 034103
Author(s):  
Manikandan Balasubramaniyan ◽  
Abhijit Kushwaha ◽  
Yu Guan ◽  
Jianchang Feng ◽  
Peijin Liu ◽  
...  
Keyword(s):  
Bluff Body ◽  
Hydrodynamic Instability ◽  
Premixed Flame ◽  
Lean Premixed

scholarly journals Modelling of a Bluff-Body Stabilised Premixed Flames Close to Blow-Off

Computation ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 43
Author(s):  
Shokri Amzin ◽  
Mohd Fairus Mohd Yasin
Keyword(s):  
Bluff Body ◽  
Fluid Dynamic ◽  
Premixed Flames ◽  
Pollutant Emissions ◽  
Moment Closure ◽  
Recirculation Region ◽  
Scalar Dissipation ◽  
Average Error ◽  
Conditional Moment ◽  
Lean Premixed

As emission legislation becomes more stringent, the modelling of turbulent lean premixed combustion is becoming an essential tool for designing efficient and environmentally friendly combustion systems. However, to predict emissions, reliable predictive models are required. Among the promising methods capable of predicting pollutant emissions with a long chemical time scale, such as nitrogen oxides (NOx), is conditional moment closure (CMC). However, the practical application of this method to turbulent premixed flames depends on the precision of the conditional scalar dissipation rate,. In this study, an alternative closure for this term is implemented in the RANS-CMC method. The method is validated against the velocity, temperature, and gas composition measurements of lean premixed flames close to blow-off, within the limit of computational fluid dynamic (CFD) capability. Acceptable agreement is achieved between the predicted and measured values near the burner, with an average error of 15%. The model reproduces the flame characteristics; some discrepancies are found within the recirculation region due to significant turbulence intensity.

Effects of preferential transport in turbulent bluff-body-stabilized lean premixed CH4/air flames

2012 ◽  
Vol 159 (8) ◽  
pp. 2563-2575 ◽  
Author(s):  
Robert S. Barlow ◽  
Matthew J. Dunn ◽  
Mark S. Sweeney ◽  
Simone Hochgreb
Keyword(s):  
Bluff Body ◽  
Lean Premixed ◽  
Preferential Transport

scholarly journals An experimental study of the stability of natural gas and propane turbulent non-premixed flame under diluting condition

2012 ◽  
Vol 16 (4) ◽  
pp. 1055-1065 ◽  
Author(s):  
Babak Kashir ◽  
Sadegh Tabejamaat ◽  
Mohammadi Baig
Keyword(s):  
Experimental Study ◽  
Natural Gas ◽  
Premixed Flame ◽  
The Stability
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