环形先进旋涡燃烧室流动、燃烧和污染物排放特性

推进技术 ›› 2017, Vol. 38 ›› Issue (11): 2532-2539.

环形先进旋涡燃烧室流动、燃烧和污染物排放特性

邓洋波,郑落汉,郭阳,苏风民

大连海事大学轮机工程学院，辽宁大连 116026,大连海事大学轮机工程学院，辽宁大连 116026,大连海事大学轮机工程学院，辽宁大连 116026,大连海事大学轮机工程学院，辽宁大连 116026

发布日期:2021-08-15
作者简介:邓洋波，男，博士，教授，研究领域为高效清洁燃烧技术。
基金资助:
国家自然科学基金委员会-神华集团有限公司煤炭联合基金(U1361111)。

Flow，Combustion and Emission Characteristics of Annular Advanced Vortex Combustor

Marine Engineering College，Dalian Maritime University，Dalian 116026，China,Marine Engineering College，Dalian Maritime University，Dalian 116026，China,Marine Engineering College，Dalian Maritime University，Dalian 116026，China and Marine Engineering College，Dalian Maritime University，Dalian 116026，China

Published:2021-08-15

摘要/Abstract

摘要： 为了给先进旋涡燃烧技术实际应用提供理论依据，采用实验和数值模拟相结合方法，对环形先进旋涡燃烧室流动和燃烧特性开展研究。首先采用粒子图像测速技术，对三对钝体布置先进旋涡燃烧室，进行冷态流动特性实验。在此基础上，对燃氢螺旋布置18对钝体的环形先进旋涡燃烧室的燃烧特性，开展了数值模拟。结果表明:(1)有后钝体存在，可以抑制气流在前钝体后面形成旋涡脱落，从而减小了流通气流的流动阻力；(2)在凹腔喷射气流的作用下，相对于无喷射条件下凹腔内形成的旋涡结构拉长，而且占据了整个凹腔；(3)随着主气流当量比增加，流经环形AVC气流在前、后钝体间的凹腔内的旋涡结构更加趋于对称，出口平均温度、燃烧效率、NO_x质量分数和总压损失系数也增大，出口温度分布系数减小。(4)喷射角在45°范围内，随着喷射角的增加，燃烧效率和出口平均温度增加，NO_x质量分数、总压损失系数和出口温度分布系数减小。

关键词: 环形先进旋涡燃烧室；流动特性；三对钝体；粒子图像测速技术

Abstract: To provide a theoretical basis for the practical application of advanced vortex combustor (AVC)，a combined experimental and computational study was carried out about the flow and combustion characteristics of an annular AVC. In order to simulate the periodic boundary conditions of annular AVC，an experimental study was carried out on the flow characteristics of an AVC arranged three pairs of blunt bodies under the non-reacting flow condition using particle image velocimetry (PIV) technology. On this basis，a numerical simulation study was conducted to an annular AVC spirally arranged 18 pairs of blunt bodies between the two cylinders. The results show: (1) After-body can restrain the formation of vortex shedding of the flow through the fore-body，thereby reduces the flow resistance of the flow. (2) The vortex structure stretches and occupies the entire cavity under the action of the jet flow in the cavity，comparing with no injection condition. (3) With increasing the equivalence ratio，the vortex structure generated by the flow through the annular AVC in the cavity between the fore-body and after-body tends to be more symmetrical，the average temperature at the outlet，the combustion efficiency，the NO_x emission，the coefficient of the total pressure loss of the annular AVC increase，and the temperature distribution coefficient at the outlet decreases. (4) In the range of 45° injection angle in the cavity，with the injection angle increasing，the average temperature at the outlet and the combustion efficiency increase，the NO_x emission，the coefficient of the total pressure loss and the temperature distribution coefficient at the outlet decrease.

Key words: Annular advanced vortex combustor；Characteristics of the flow；Three pairs of bluff bodies；Particle image velocimetry

邓洋波,郑落汉,郭阳,苏风民. 环形先进旋涡燃烧室流动、燃烧和污染物排放特性[J]. 推进技术, 2017, 38(11): 2532-2539.

DENG Yang-bo,ZHENG Luo-han,GUO Yang,SU Feng-min. Flow，Combustion and Emission Characteristics of Annular Advanced Vortex Combustor[J]. Journal of Propulsion Technology, 2017, 38(11): 2532-2539.

参考文献

[1] Roquemore W M, Shouse D, Brrrus D, et al. Trapped Vortex Combustor Concept for Gas Turbine Engines[C].Reno NV: 39th Aerospace Sciences Meeting and Exhibit, 2001.
[2] Edmonds R G, Steele R C, Williams J T, et al. Numerical Investigation of the Flow and Flame Structure in An Axisymmetric Trapped Vortex Combustor[J]. Fuel, 2012, 102:78-84.
[3] 何小民, 许金生, 苏俊卿. 驻涡燃烧室燃烧性能试验[J]. 航空动力学报, 2009, 24(2): 318-323.
[4] Hsu K Y, Goss L P, Trump D D. Performance of a Trapped-Vortex Combustor[R]. AIAA 95-0810.
[5] Hsu K Y, Goss L P, Roquemore W M. Characteristics of a Trapped Vortex Combustor[J]. Journal of Propulsion and Power, 1998, 14: 57-65.
[6] Mair W A. The Effect of Rear-Mounted Disc on the Drag of a Blunt-Based Body of Revolution[J]. The Aeronautical Quarterly, 1965, 16: 350-360.
[7] Little BHJr, Whipkey R R. Locked Vortex Afterbodies[J]. Journal of Aircraft, 1979, 16: 296-302.
[8] Komerath N M, Ahuja K K, Chambers F W. Prediction and Measurement of Flows over Cavities-A Survey[R]. AIAA 87-0166.
[9] 樊未军, 孔昭健, 邢菲, 等. 凹腔驻涡模型燃烧室内涡的演化发展. 航空动力学报, 2007, 22(6): 888-892.
[10] 邢菲, 孟祥泰, 李继保, 等. 凹腔双驻涡稳焰冷态流场初步研究[J]. 推进技术, 2008, 29(2): 135-138. (XING Fei, MENG Xiang-tai, LI Ji-bao, et al. Elementary Study on Cool Flow Field of Double Vortex in Cavity for Flame Stabilization[J]. Journal of Propulsion Technology, 2008, 29(2): 135-138.
[11] Bucher J, Edmonds R G, Steele R C, et al. The Development of a Lean Premixed Trapped Vortex Combustor[R]. ASME GT 2003-38236.
[12] Chenevert BC, Kendrick DW, Trueblood B, et al. The Development of the Ramgen Engine Combustion System[R]. ASME GT 2002-30084.
[13] Edmonds R G, Steele R C, Williams J T, et al. Ultra Low NO_x Advanced Vortex Combustor[R]. ASME GT 2006-90319.
[14] 邓洋波, 钟兢军. 旋转冲压发动机驻涡燃烧技术研究现状分析[J]. 燃气涡轮实验与研究, 2006, 19(3):58-62.
[15] 邓洋波, 刘世青, 钟兢军. 先进旋涡燃烧室燃烧特性数值模拟[J]. 大连海事大学学报, 2008, 34(3): 21-24.
[16] 邓洋波, 刘世青, 钟兢军. 先进旋涡燃烧室流动与燃烧特性分析[J]. 航空动力学报, 2009, 24(3): 1416-1418.
[17] 刘世青, 钟兢军. 后驻体喷射角度对驻涡燃烧室影响冷态数值研究[J]. 哈尔滨工程大学学报, 2010, 31(8): 1-8.
[18] 邓洋波, 孙海涛, 王玉龙, 等. 氢燃料先进旋涡燃烧室流动和燃烧特性[J]. 航空动力学报, 2013, 28(1): 120-128.
[19] 王志凯, 曾卓雄, 徐义华. 先进旋涡燃烧室后钝体开口结构的数值研究[J]. 推进技术, 2014, 35(6): 809-814. (WANG Zhi-kai, ZENG Zhuo-xiong, XU Yi-hua. Numerical Simulation of Open Structure of Rear Blunt Bodyin Advanced Vortex Combustor[J]. Journal of Propulsion Technology, 2014, 35(6): 809-814.)
[20] 王志凯, 曾卓雄, 徐义华, 等, 基于涡流发生器原理的先进旋涡燃烧室燃烧特性研究[J]. 推进技术, 2015, 36(1): 75-81. (WANG Zhi-kai, ZENG Zhuo-xiong, XU Yi-hua, et al. Research of Combustion Characteristics of Advanced Vortex Combustor Based on Vortex Generator[J]. Journal of Propulsion Technology, 2015, 36(1): 75-81.)
[21] 王志凯, 曾卓雄, 徐义华, 等. 导流片结构参数对先进旋涡燃烧室性能影响研究[J]. 推进技术, 2015, 36(3): 405-412. (WANG Zhi-kai, ZENG Zhuo-xiong, XU Yi-hua, et al. Effects of Flow Guide Vanes Structure Parameters on Characteristics of Advanced Vortex Combustor[J]. Journal of Propulsion Technology, 2015, 36(3): 405-412.)
[22] 夏雪湔, 邓学蓥. 工程分离流动力学[M]. 北京:北京航空航天大学出版社. 1990.
[23] Gharib M, Roshko A. The Effect of Flow Oscillations on Cavity Drag[J]. Journal of Fluid Mechanics, 1987, 177: 501-530.
[24] Willis J, Cadou C, Mitchell M, et al. Destruction of Liquid and Gaseous Waste Surrogates in an Acoustically Excited Dump Combustor[J]. Combustion and Flame, 1994, 99: 280-287.　　　　　　　　　　　　　*　收稿日期:2016-06-03；修订日期:2016-09-30。基金项目:国家自然科学基金委员会-神华集团有限公司煤炭联合基金(U1361111)。作者简介:邓洋波,男,博士,教授,研究领域为高效清洁燃烧技术。 E-mail: dengyb@dlmu.edu.cn(编辑:史亚红)