| Citation: | XIAO Zhoushiji, XIAO Wei, CAO Jun, et al. Large eddy simulation of cold turbulence mass exchange based on concentric staged combustor[J]. Journal of Aerospace Power, 2025, 40（1）：20230033 doi: 10.13224/j.cnki.jasp.20230033
|
To study the characteristics of turbulence fluctuation mass exchange between the concentric staged combustor stages, large eddy simulation was conducted for 9 kinds of swirlers and total pressure loss combination schemes, and partial combination schemes were verified by particle image velocimetry optical experiments. A new quantitative method of turbulence exchange was proposed and the variety rules of turbulence exchange phenomena in 9 kinds of combination schemes were achieved. The results showed that the intensity of turbulence exchange was in direct proportion to the inlet mass flow when the swirlers were kept constant, meanwhile, counter-rotating swirlers caused the relationship between swirlers outlet flow to change from synergism to antagonism, the increased momentum dissipation between main swirlers and pilot swirlers made it difficult for central recirculation zone to maintain a stable state under the repression of first main swirler outlet flow. Finally this made the central recirculation zone contract towards the combustor dome and reduced the intensity of turbulence exchange in the central recirculation zone. In case of counter-rotating, of the 2nd pilot swirler, the intensity reduction of turbulence exchange reached about 70%. And in the slender recirculation zone, the region with the strongest turbulence exchange was in the middle of the recirculation zone.
| [1] |
金如山,索建秦. 先进燃气轮机燃烧室[M]. 北京: 航空工业出版社,2016.
|
| [2] |
刘岩,惠鑫,王建臣,等. 预燃级旋流数对中心分级燃烧室点火性能影响[J]. 航空动力学报,2022,37(10): 2335-2343. LIU Yan,HUI Xin,WANG Jianchen,et al. Effect of swirl number of pilot stage on ignition performance of centrally-staged combustor[J]. Journal of Aerospace Power,2022,37(10): 2335-2343. (in Chinese
LIU Yan, HUI Xin, WANG Jianchen, et al. Effect of swirl number of pilot stage on ignition performance of centrally-staged combustor[J]. Journal of Aerospace Power, 2022, 37(10): 2335-2343. (in Chinese)
|
| [3] |
邹博文,许全宏,曹文宇,等. 中心分级燃烧室耦合回流区贫油熄火机理[J]. 航空动力学报,2013,28(8): 1759-1763. ZOU Bowen,XU Quanhong,CAO Wenyu,et al. Lean blowout mechanism of coupled recirculation zone in concentric staged combustor[J]. Journal of Aerospace Power,2013,28(8): 1759-1763. (in Chinese
ZOU Bowen, XU Quanhong, CAO Wenyu, et al. Lean blowout mechanism of coupled recirculation zone in concentric staged combustor[J]. Journal of Aerospace Power, 2013, 28(8): 1759-1763. (in Chinese)
|
| [4] |
LONGWELL J P,WEISS M A. High temperature reaction rates in hydrocarbon combustion[J]. Industrial & Engineering Chemistry,1955,47(8): 1634-1643.
|
| [5] |
LONGWELL J P,FROST E E,WEISS M A. Flame stability in bluff body recirculation zones[J]. Industrial & Engineering Chemistry,1953,45(8): 1629-1633.
|
| [6] |
BARRÉRE M,MESTRE A. Stabilisation des flammes par des obstacles[R]. Cambridge,UK: Cambridge University,1954: 426-446.
|
| [7] |
ZUKOWSKI E E,MARBLE F E. The role of wake transition in the process of flame stabilization on bluff bodies[M]. AGARD Combustion Researches and Reviews. London: Butterworth Scientific Publishers,1955: 167-180.
|
| [8] |
ZUKOWSKI E E E. Flame stabilization on bluff bodies at low and intermediate Reynolds numbers[D]. Pasadena,US: California Institute of Technology,1954.
|
| [9] |
KONRAD J H. An experimental investigation of mixing in two-dimensional turbulent shearflows with applications to diffusion-limited chemical reactions[D]. Pasadena,US: California Institute of Technology,1976.
|
| [10] |
WINTERFELD G. On processes of turbulent exchange behind flame holders[J]. Symposium (International) on Combustion,1965,10(1): 1265-1275. doi: 10.1016/S0082-0784(65)80261-2
|
| [11] |
姚志华,陈濬,王世明. 对V形火焰稳定器回流区内的气体质量和回流区边界上紊流交换率的研究[J]. 工程热物理学报,1983,4(3): 291-297. YAO Zhihua,CHEN Jun,WANG Shiming. A study about the total mass of flow in the recirculation zone behind V-type flame holder and turbulent exchange rate at the boundary layer of the recirculation zone[J]. Journal of Engineering Thermophysics,1983,4(3): 291-297. (in Chinese
YAO Zhihua, CHEN Jun, WANG Shiming. A study about the total mass of flow in the recirculation zone behind V-type flame holder and turbulent exchange rate at the boundary layer of the recirculation zone[J]. Journal of Engineering Thermophysics, 1983, 4(3): 291-297. (in Chinese)
|
| [12] |
BUSH S M,GUTMARK E J. Reacting and nonreacting flowfields of a V-gutter stabilized flame[J]. AIAA Journal,2007,45(3): 662-672. doi: 10.2514/1.22655
|
| [13] |
MURUGANANDAM T,SEITZMAN J. Origin of lean blow out precursors in swirled gas turbine combustors[R]. AIAA-2005-1163,2005.
|
| [14] |
刘英杰,刘潇,周波,等. 低旋流预混燃烧稳燃机理的大涡模拟[J]. 航空动力学报,2020,35(2): 298-304. LIU Yingjie,LIU Xiao,ZHOU Bo,et al. Large eddy simulation of low swirl premixed flame stabilization mechanism[J]. Journal of Aerospace Power,2020,35(2): 298-304. (in Chinese
LIU Yingjie, LIU Xiao, ZHOU Bo, et al. Large eddy simulation of low swirl premixed flame stabilization mechanism[J]. Journal of Aerospace Power, 2020, 35(2): 298-304. (in Chinese)
|
| [15] |
张兆顺. 湍流理论与模拟[M]. 2版. 北京: 清华大学出版社,2017. ZHANG Zhaoshun. Theory and modeling of turbulence[M]. 2nd ed. Beijing: Tsinghua University Press,2017. (in Chinese
ZHANG Zhaoshun. Theory and modeling of turbulence[M]. 2nd ed. Beijing: Tsinghua University Press, 2017. (in Chinese)
|
| [16] |
周瑜,乐嘉陵,陈柳君,等. 轴向三级旋流燃烧室流场结构大涡模拟[J]. 航空动力学报,2017,32(4): 917-925. ZHOU Yu,LE Jialing,CHEN Liujun,et al. Large eddy simulation of flow structure in combustor with axial triple swirler[J]. Journal of Aerospace Power,2017,32(4): 917-925. (in Chinese
ZHOU Yu, LE Jialing, CHEN Liujun, et al. Large eddy simulation of flow structure in combustor with axial triple swirler[J]. Journal of Aerospace Power, 2017, 32(4): 917-925. (in Chinese)
|
| [17] |
何跃龙,邓远灏,颜应文,等. 大涡模拟模型燃烧室燃烧性能计算[J]. 航空动力学报,2012,27(9): 1939-1947. HE Yuelong,DENG Yuanhao,YAN Yingwen,et al. Large-eddy simulation of two-phase reacting flows and combustion performance in model combustor[J]. Journal of Aerospace Power,2012,27(9): 1939-1947. (in Chinese
HE Yuelong, DENG Yuanhao, YAN Yingwen, et al. Large-eddy simulation of two-phase reacting flows and combustion performance in model combustor[J]. Journal of Aerospace Power, 2012, 27(9): 1939-1947. (in Chinese)
|
| [18] |
石黎. 高压燃烧室内湍流燃烧过程的大涡模拟与实验研究[D]. 北京: 华北电力大学,2017. SHI Li. Large eddy simulation and experimental study on turbulent combustion process in high pressure combustion chamber[D]. Beijing: North China Electric Power University,2017. (in Chinese
SHI Li. Large eddy simulation and experimental study on turbulent combustion process in high pressure combustion chamber[D]. Beijing: North China Electric Power University, 2017. (in Chinese)
|
DownLoad:
