双旋流驻涡燃烧室湍流燃烧流动的数值分析

推进技术 ›› 2017, Vol. 38 ›› Issue (7): 1572-1578.

双旋流驻涡燃烧室湍流燃烧流动的数值分析

曾卓雄¹,薛锋²,张龙³

上海电力学院能源与机械工程学院，上海 200090,中国人民解放军91467部队，山东胶州 266311,南昌航空大学飞行器工程学院，江西南昌 330063

发布日期:2021-08-15
作者简介:曾卓雄，男，博士后，教授，研究领域为传热流动燃烧。
基金资助:
国家自然科学基金(51066006；51266013)；航空科学基金(2013ZB56002；2013ZB56004)。

Numrical Simulation on Turbulence Flow in Dual Swirl Trapped-Vortex Combustor

College of Power and Mechanical Engineering，Shanghai University of Electric Power，Shanghai?200090，China,The 91467 Troops of PLA， Jiaozhou 266311，China and School of Aircraft Engineering，Nanchang Hangkong University，Nanchang 330063，China

Published:2021-08-15

摘要/Abstract

摘要： 提出了带导流片的双旋流驻涡燃烧室以进一步发展低排放、高效燃烧技术。改变旋流器的结构参数以及旋向，对双旋流驻涡燃烧室内部燃烧湍流流场进行了数值模拟。结果表明:增大旋流器内外径比对燃烧效率有一定影响，NO_x排放降低了约8%。旋流器中心间距对燃烧性能的影响不如内外径比的大。不同旋向下燃烧室均可获得良好的双涡结构，但反旋时下游火焰筒的高温度梯度场会对筒壁造成强烈热冲击，同旋时NO_x排放降低了约22%，因此同向旋转结构总体上要优于反向旋转结构。

关键词: 旋流；驻涡燃烧室；燃烧室性能；NO_x排放

Abstract: A dual swirl trapped vortex combustor with guide vane is proposed in order to develop low pollution and high efficiency combustion technology，and numerical simulation of combustion turbulence flow was performed by changing swirler structure parameters and rotation direction. The results show that with the increase of inner diameter and outer diameter ratio，to some extent，combustion efficiency increased，but NO_x emission decreases by about 8%. The influence of distance between two swirlers center on combustion performance is less than that of inner diameter and outer diameter ratio. Good double vortex structure can be obtained for this type combustion chamber with different rotation direction，but extremely high temperature gradient of downstream flame tube caused by counter-swirl will produce strong thermal shock to the cylinder wall. Co-swirl combustor can decrease NO_x emission by about 22% and achieve better comprehensive performance than counter-swirl combustor.

Key words: Swirl；Trapped vortex combustor；Combustor performance；NO_x emission

曾卓雄,薛锋,张龙. 双旋流驻涡燃烧室湍流燃烧流动的数值分析[J]. 推进技术, 2017, 38(7): 1572-1578.

ZENG Zhuo-xiong¹,XUE Feng²,ZHANG Long³. Numrical Simulation on Turbulence Flow in Dual Swirl Trapped-Vortex Combustor[J]. Journal of Propulsion Technology, 2017, 38(7): 1572-1578.

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