Investigation of characteristics of turbulent burning velocity by simultaneous measurements of time-resolved PLIF and stereoscopic PIV

2016 ◽  
Vol 2016 (0) ◽  
pp. F051010
Author(s):  
Masayasu SHIMURA ◽  
Mamoru TANAHASHI
Keyword(s):  
Burning Velocity ◽  
Time Resolved ◽  
Stereoscopic Piv ◽  
Simultaneous Measurements ◽  
Turbulent Burning Velocity

A Model for Predicting Turbulent Burning Velocity by using Karlovitz Number and Markstein Number under EGR Conditions

2021 ◽  
Author(s):  
Kei Yoshimura ◽  
Kohei Ozawa ◽  
Kyohei Yamaguchi ◽  
Ratnak Sok ◽  
Jin Kusaka ◽  
...  
Keyword(s):  
Burning Velocity ◽  
Markstein Number ◽  
Turbulent Burning Velocity

The Effects of Turbulent Burning Velocity Models in a Swirl-Stabilized Lean Premixed Combustor

2018 ◽  
Vol 35 (4) ◽  
pp. 365-372
Author(s):  
Jong-Chan Kim ◽  
Won-Chul Jung ◽  
Ji-Seok Hong ◽  
Hong-Gye Sung
Keyword(s):  
Burning Velocity ◽  
Premixed Combustion ◽  
Dynamic Mode Decomposition ◽  
Combustion Model ◽  
Dynamic Mode ◽  
Turbulent Premixed Combustion ◽  
Velocity Models ◽  
Flame Structures ◽  
Turbulent Burning Velocity ◽  
Turbulent Premixed

Abstract The effects of turbulent burning velocities in a turbulent premixed combustion simulation with a G-equation are investigated using the 3D LES technique. Two turbulent burning velocity models – Kobayashi model, which takes into account the burning velocity pressure effect, and the Pitsch model, which considers the flame regions on the premixed flame structure – are implemented. An LM6000 combustor is employed to validate the turbulent premixed combustion model. The results show that the flame structures in front of the injector have different shapes in each model because of the different turbulent burning velocities. These different flame structures induce changes in the entire combustor flow field, including in the recirculation zone. The dynamic mode decomposition (DMD) method and linear acoustic analysis provide the dominant acoustic mode.

scholarly journals Turbulent burning velocity measurements: Extended to extreme levels of turbulence

2017 ◽  
Vol 36 (2) ◽  
pp. 1801-1808 ◽  
Author(s):  
Timothy M. Wabel ◽  
Aaron W. Skiba ◽  
James F. Driscoll
Keyword(s):  
Burning Velocity ◽  
Velocity Measurements ◽  
Turbulent Burning Velocity

COMPUTATIONAL FLUID DYNAMIC ANALYSIS OF COUNTERFLOW TURBULENT PREMIXED FLAMES BY THE COHERENT FLAMELET MODEL

2000 ◽  
Vol 24 (1A) ◽  
pp. 33-44
Author(s):  
E. Lee ◽  
K.Y. Huh
Keyword(s):  
Source Term ◽  
Fluid Dynamic ◽  
Burning Velocity ◽  
Premixed Flames ◽  
Turbulent Premixed Flames ◽  
Computational Fluid Dynamic Analysis ◽  
Flamelet Model ◽  
Turbulent Burning Velocity ◽  
The Relationship ◽  
Turbulent Premixed

The Coherent Flamelet Model (CFM) is applied to symmetric counterflow turbulent premixed flames studied by Kostiuk et al. The flame source term is set proportional to the sum of the mean and turbulent rate of strain while flame quenching is modeled by an additional multiplication factor to the flame source term. The turbulent rate of strain is set proportional to the turbulent intensity to match the correlation for the turbulent burning velocity investigated by Abdel-Gayed et al. The predicted flame position and turbulent flow field coincide well with the experimental observations. The relationship between the Reynolds averaged reaction progress variable and flame density seems to show a wrong trend due to inappropriate modeling of the sink and source term in the transport equation.

Relationship between Turbulent Burning Velocity and Karlovitz Number under EGR Conditions

2020 ◽  
Author(s):  
Kei Yoshimura ◽  
Kazuhito Misawa ◽  
Satoshi Tokuhara ◽  
Kenichiro Kobayashi ◽  
Masaaki Togawa ◽  
...  
Keyword(s):  
Burning Velocity ◽  
Turbulent Burning Velocity
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