Towards Modeling Lean Blow Out in Gas Turbine Flameholder ApplicationsSource: Journal of Engineering for Gas Turbines and Power:;2006:;volume( 128 ):;issue: 001::page 40Author:Won-Wook Kim
,
Paul R. Van Slooten
,
Robert E. Malecki
,
Saadat Syed
,
Meredith B. Colket
,
Jeffrey J. Lienau
DOI: 10.1115/1.2032450Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this study was to assess the accuracy of the large-eddy simulation (LES) methodology, with a simple combustion closure based on equilibrium chemistry, for simulating turbulent reacting flows behind a bluff body flameholder. Specifically, the variation in recirculation zone length with change in equivalence ratio was calculated and compared to experimental measurements. It was found that the present LES modeling approach can reproduce this variation accurately. However, it understated the recirculation zone length at the stoichiometric condition. The approach was assessed at the lean blow out condition to evaluate its behavior at the lean limit and to analyze the physics of combustion instability.
keyword(s): Combustion , Turbulence , Flow (Dynamics) , Modeling , Chemistry , Equilibrium (Physics) , Flames , Temperature AND Gas turbines ,
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| contributor author | Won-Wook Kim | |
| contributor author | Paul R. Van Slooten | |
| contributor author | Robert E. Malecki | |
| contributor author | Saadat Syed | |
| contributor author | Meredith B. Colket | |
| contributor author | Jeffrey J. Lienau | |
| date accessioned | 2017-05-09T00:19:55Z | |
| date available | 2017-05-09T00:19:55Z | |
| date copyright | January, 2006 | |
| date issued | 2006 | |
| identifier issn | 1528-8919 | |
| identifier other | JETPEZ-26894#40_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/133714 | |
| description abstract | The objective of this study was to assess the accuracy of the large-eddy simulation (LES) methodology, with a simple combustion closure based on equilibrium chemistry, for simulating turbulent reacting flows behind a bluff body flameholder. Specifically, the variation in recirculation zone length with change in equivalence ratio was calculated and compared to experimental measurements. It was found that the present LES modeling approach can reproduce this variation accurately. However, it understated the recirculation zone length at the stoichiometric condition. The approach was assessed at the lean blow out condition to evaluate its behavior at the lean limit and to analyze the physics of combustion instability. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Towards Modeling Lean Blow Out in Gas Turbine Flameholder Applications | |
| type | Journal Paper | |
| journal volume | 128 | |
| journal issue | 1 | |
| journal title | Journal of Engineering for Gas Turbines and Power | |
| identifier doi | 10.1115/1.2032450 | |
| journal fristpage | 40 | |
| journal lastpage | 48 | |
| identifier eissn | 0742-4795 | |
| keywords | Combustion | |
| keywords | Turbulence | |
| keywords | Flow (Dynamics) | |
| keywords | Modeling | |
| keywords | Chemistry | |
| keywords | Equilibrium (Physics) | |
| keywords | Flames | |
| keywords | Temperature AND Gas turbines | |
| tree | Journal of Engineering for Gas Turbines and Power:;2006:;volume( 128 ):;issue: 001 | |
| contenttype | Fulltext |