基于DTF和REDIM技术构建的亚网格燃烧模型及其验证
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摘要
将反应扩散流形(REDIM)技术与动态火焰增厚(DTF)模型结合起来,构建了一种新的湍流预混燃烧模型。用该模型对PRECCINSTA燃烧器全局当量比分别为0.75和0.83的两种贫燃预混旋转火焰开展大涡模拟计算,将计算结果与原DTF模型计算结果以及实验结果进行对比研究,着重分析了速度、温度以及CO2质量分数的径向分布情况。研究表明:新模型的计算结果与实验结果吻合良好,由于新模型求解的组分输运方程数目减少,计算效率比原DTF模型约提高15%;理论上,新模型可推广应用于部分预混火焰的计算,只要采用合适的REDIM化学反应表格,如二维的REDIM表格。
The reaction-diffusion manifold(REDIM)technique is utilized in combination with the dynamically thickened-flame(DTF)model,which forms a new turbulent premixed combustion model. Then the new model was used to calculate two lean premixed swirling flames in PRECCINSTA combustor via large eddy simulation,with equivalence ratios 0.75 and 0.83,respectively. The radial profiles of velocity,temperature and CO_2 mass fraction were analyzed and compared with the results from original DTF model and the experimental data.The results are in good overall agreement with the corresponding experiment. Since less species transport equations are solved in REDIM-DTF model,the computational efficiency of it is about 15% higher than the original DTF model. In theory,the new model can also be applied to simulate partially premixed flames,as long as an appropriate REDIM chemistry look-up table is used,e.g. two-dimensional REDIM table.
The reaction-diffusion manifold(REDIM)technique is utilized in combination with the dynamically thickened-flame(DTF)model,which forms a new turbulent premixed combustion model. Then the new model was used to calculate two lean premixed swirling flames in PRECCINSTA combustor via large eddy simulation,with equivalence ratios 0.75 and 0.83,respectively. The radial profiles of velocity,temperature and CO_2 mass fraction were analyzed and compared with the results from original DTF model and the experimental data.The results are in good overall agreement with the corresponding experiment. Since less species transport equations are solved in REDIM-DTF model,the computational efficiency of it is about 15% higher than the original DTF model. In theory,the new model can also be applied to simulate partially premixed flames,as long as an appropriate REDIM chemistry look-up table is used,e.g. two-dimensional REDIM table.
引文
[1]杨金虎. FGM预混及部分预混湍流燃烧模型研究与应用[D].北京:中国工程热物理研究所,2012.
[2] Fureby C. Towards the Use of Large Eddy Simulation in Engineering[J]. Progress in Aerospace Science,2008,44:381-396.
[3]周瑜,乐嘉陵,陈柳君,等.径向双旋流燃烧室流场结构大涡模拟研究[J].推进技术,2017,38(4):909-917.(ZHOU Yu,LE Jia-ling,CHEN Liu-jun,et al. Large Eddy Simulation of Aeroengine Combustor with Counter-Rotating Swirler[J]. Journal of Propulsion Technology,2017,38(4):909-917.)
[4]颜应文,刘勇,赵坚行,等.模型燃烧室两相燃烧大涡模拟的并行计算[J].推进技术,2008,29(4):431-437.(YAN Ying-wen,LIU Yong,ZHAO Jianxing,et al. A Parallel Alogorithm for Large Eddy Simulation of Two-Phase Reacting Flows in Model Combustor[J]. Journal of Propulsion Technology,2008,29(4):431-437.)
[5]王方,周力行,许春晓,等.预混燃烧大涡模拟和燃烧模型的检验[J].推进技术,2008,29(1):33-36.(WANG Fang,ZHOU Li-xing,XU Chun-xiao,et al.Large-Eddy Simulation of Premixed Combustion and Validation of the Combustion Model[J]. Journal of Propulsion Technology,2008,29(1):33-36.)
[6] Smith G P,Golden D M,Frenklach M,et al. GRI Version 3.0[EB/OL]. http://combustion.berkeley.edu/grimech/version30/text30.html,1999.
[7] Maas U,Pope S B. Simplifying Chemical Kinetics:Intrinsic Low-Dimensional Manifolds in Composition Space[J]. Combustion and Flame,1992,88:239-264.
[8] Bykov V,Maas U. The Extension of the ILDM Concept to Reaction-Diffusion Manifolds[J]. Combustion Theory and Modelling,2007,11(6):839-862.
[9] Bykov V,Maas U. Problem Adapted Reduced Models Based on Reaction-Diffusion Manifolds(REDIMs)[J].Proceedings of the Combustion Institute,2009,32:561-568.
[10] Wang G,Boileau M,Veynante D. Implementation of a Dynamic Thickened Flame Model for Large Eddy Simulations of Turbulent Premixed Combustion[J]. Combustion and Flame,2011,158:2199-2213.
[11] Wang P,Fr?hlich J,Maas U,et al. A Detailed Comparison of Two Sub-Grid Scale Combustion Models via Large Eddy Simulation of the PRECCINSTA Gas Turbine Model Combustor[J]. Combustion and Flame,2016,164:329-345.
[12]王平,侯天增,余倩.火焰增厚燃烧模型计算旋转预混火焰的参数敏感性分析[J].推进技术,2018,39(2).(WANG Ping,HOU Tian-zeng,YU Qian.Large Eddy Simulation of the Premixed Swirling Flames with Thickened-Flame Model:a Sensitivity Study[J].Journal of Propulsion Technology,2018,39(2).)
[13] Kelsall G,Troger C. Prediction and Control of Combustion Instabilities in Industrial Gas Turbines[J]. Applied Thermal Engineering,2004,24:1571-1582.
[14] Butler T D,O’Rourke P J. A Numerical Method for Two-Dimensional Unsteady Reacting Flows[J]. Proceedings of the Combustion Institute,1977,16:1503-1515.
[15] Colin O,Ducros F,Veynante D,et al. A Thickened Flame Model for Large Eddy Simulations of Turbulent Premixed Combustion[J]. Physics of Fluids,2000,12(7):1843-1863.
[16] Wang P,Fr?hlich J,Maas U. Impact of Location and Flow Rate Oscillation of the Pilot Jet on the Flow Structures in Swirling Premixed Flames[J]. Journal of Turbulence,2010,11(11):1-19.
[17] Légier J P,Poinsot T,Veynante D. Dynamically Thickened Flame LES model for Premixed and Non-Premixed Turbulent Combustion[C]. Stanford:The 2000 Summer Program,2000.
[18] Selle L,Lartigue G,Poinsot T,et al. Compressible Large Eddy Simulation of Turbulent Combustion in Complex Geometry on Unstructured Meshes[J]. Combustion and Flame,2004,137:489-505.
[19]王蔡军,陆少杰,王平.基于REDIM方法构建的亚网格燃烧模型及其应用[J].化工学报,2015,66(12):4948-4959.
[20] Wang P,Platova N A,Fr?hlich J,et al. Large Eddy Simulation of the PRECCINSTA Burner[J]. International Journal of Heat and Mass Transfer,2014,70:486-495.
[21] Moin P,Squires K,Cabot W,et al. A Dynamic SubGrid Scale Model for Compressible Turbulence and Scalar Transport[J]. Physics of Fluids,1991,3:2746-2757.
[22] Meier W,Weigand P,Duan X R,et al. Detailed Characterization of the Dynamics of Thermoacoustic Pulsations in a Lean Premixed Swirl Flame[J]. Combustion and Flame,2007,150:2-26.
[23] Wang P,Fr?hlich J,Maas U. LES of Turbulent Premixed Swirling Flames in Complex Geometry Using Thickened-Flame Type of Models[C]. Cardiff:The 5th European Combustion Meeting,2011.
[24]张济民,韩超,张宏达,等.钝体绕流有旋流中回流区与进动涡核的大涡模拟[J].推进技术,2014,35(8):1070-1079.(ZHANG Ji-min,HAN Chao,ZHANG Hong-da,et al. Large Eddy Simulation of Swirl Flow around Bluff Body with Central Recirculation Zone and Precession Vortex Core[J]. Journal of Propulsion Technology,2014,35(8):1070-1079.)
[2] Fureby C. Towards the Use of Large Eddy Simulation in Engineering[J]. Progress in Aerospace Science,2008,44:381-396.
[3]周瑜,乐嘉陵,陈柳君,等.径向双旋流燃烧室流场结构大涡模拟研究[J].推进技术,2017,38(4):909-917.(ZHOU Yu,LE Jia-ling,CHEN Liu-jun,et al. Large Eddy Simulation of Aeroengine Combustor with Counter-Rotating Swirler[J]. Journal of Propulsion Technology,2017,38(4):909-917.)
[4]颜应文,刘勇,赵坚行,等.模型燃烧室两相燃烧大涡模拟的并行计算[J].推进技术,2008,29(4):431-437.(YAN Ying-wen,LIU Yong,ZHAO Jianxing,et al. A Parallel Alogorithm for Large Eddy Simulation of Two-Phase Reacting Flows in Model Combustor[J]. Journal of Propulsion Technology,2008,29(4):431-437.)
[5]王方,周力行,许春晓,等.预混燃烧大涡模拟和燃烧模型的检验[J].推进技术,2008,29(1):33-36.(WANG Fang,ZHOU Li-xing,XU Chun-xiao,et al.Large-Eddy Simulation of Premixed Combustion and Validation of the Combustion Model[J]. Journal of Propulsion Technology,2008,29(1):33-36.)
[6] Smith G P,Golden D M,Frenklach M,et al. GRI Version 3.0[EB/OL]. http://combustion.berkeley.edu/grimech/version30/text30.html,1999.
[7] Maas U,Pope S B. Simplifying Chemical Kinetics:Intrinsic Low-Dimensional Manifolds in Composition Space[J]. Combustion and Flame,1992,88:239-264.
[8] Bykov V,Maas U. The Extension of the ILDM Concept to Reaction-Diffusion Manifolds[J]. Combustion Theory and Modelling,2007,11(6):839-862.
[9] Bykov V,Maas U. Problem Adapted Reduced Models Based on Reaction-Diffusion Manifolds(REDIMs)[J].Proceedings of the Combustion Institute,2009,32:561-568.
[10] Wang G,Boileau M,Veynante D. Implementation of a Dynamic Thickened Flame Model for Large Eddy Simulations of Turbulent Premixed Combustion[J]. Combustion and Flame,2011,158:2199-2213.
[11] Wang P,Fr?hlich J,Maas U,et al. A Detailed Comparison of Two Sub-Grid Scale Combustion Models via Large Eddy Simulation of the PRECCINSTA Gas Turbine Model Combustor[J]. Combustion and Flame,2016,164:329-345.
[12]王平,侯天增,余倩.火焰增厚燃烧模型计算旋转预混火焰的参数敏感性分析[J].推进技术,2018,39(2).(WANG Ping,HOU Tian-zeng,YU Qian.Large Eddy Simulation of the Premixed Swirling Flames with Thickened-Flame Model:a Sensitivity Study[J].Journal of Propulsion Technology,2018,39(2).)
[13] Kelsall G,Troger C. Prediction and Control of Combustion Instabilities in Industrial Gas Turbines[J]. Applied Thermal Engineering,2004,24:1571-1582.
[14] Butler T D,O’Rourke P J. A Numerical Method for Two-Dimensional Unsteady Reacting Flows[J]. Proceedings of the Combustion Institute,1977,16:1503-1515.
[15] Colin O,Ducros F,Veynante D,et al. A Thickened Flame Model for Large Eddy Simulations of Turbulent Premixed Combustion[J]. Physics of Fluids,2000,12(7):1843-1863.
[16] Wang P,Fr?hlich J,Maas U. Impact of Location and Flow Rate Oscillation of the Pilot Jet on the Flow Structures in Swirling Premixed Flames[J]. Journal of Turbulence,2010,11(11):1-19.
[17] Légier J P,Poinsot T,Veynante D. Dynamically Thickened Flame LES model for Premixed and Non-Premixed Turbulent Combustion[C]. Stanford:The 2000 Summer Program,2000.
[18] Selle L,Lartigue G,Poinsot T,et al. Compressible Large Eddy Simulation of Turbulent Combustion in Complex Geometry on Unstructured Meshes[J]. Combustion and Flame,2004,137:489-505.
[19]王蔡军,陆少杰,王平.基于REDIM方法构建的亚网格燃烧模型及其应用[J].化工学报,2015,66(12):4948-4959.
[20] Wang P,Platova N A,Fr?hlich J,et al. Large Eddy Simulation of the PRECCINSTA Burner[J]. International Journal of Heat and Mass Transfer,2014,70:486-495.
[21] Moin P,Squires K,Cabot W,et al. A Dynamic SubGrid Scale Model for Compressible Turbulence and Scalar Transport[J]. Physics of Fluids,1991,3:2746-2757.
[22] Meier W,Weigand P,Duan X R,et al. Detailed Characterization of the Dynamics of Thermoacoustic Pulsations in a Lean Premixed Swirl Flame[J]. Combustion and Flame,2007,150:2-26.
[23] Wang P,Fr?hlich J,Maas U. LES of Turbulent Premixed Swirling Flames in Complex Geometry Using Thickened-Flame Type of Models[C]. Cardiff:The 5th European Combustion Meeting,2011.
[24]张济民,韩超,张宏达,等.钝体绕流有旋流中回流区与进动涡核的大涡模拟[J].推进技术,2014,35(8):1070-1079.(ZHANG Ji-min,HAN Chao,ZHANG Hong-da,et al. Large Eddy Simulation of Swirl Flow around Bluff Body with Central Recirculation Zone and Precession Vortex Core[J]. Journal of Propulsion Technology,2014,35(8):1070-1079.)