|Table of Contents|

Numerical study on fuel injection flow field of Al/AP powder engine(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2019年06期
Page:
71-77
Research Field:
研究与技术
Publishing date:

Info

Title:
Numerical study on fuel injection flow field of Al/AP powder engine
Author(s):
FU Siyuan;  YANG Xudong;  ZHAO Zhiwei;  LI Wang;  BAI Qiaodong
(National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing,210094 China)
Keywords:
Al/AP powder engine;  fuel delivery mode;  dispersion and mixing effect;  conical structure
PACS:
V430
DOI:
-
Abstract:
In order to study the effect of fuel delivery mode on the powder dispersion and mixing effect of Al/AP powder engine, the gas powder control equation, turbulence model and Euler model were used to carry out a detailed numerical simulation of the fuel injection blending process in the metal powder engine.The numerical results show that the solid phase volume fraction and the cone structure at the injection inlet have a great influence on the flow field parameters.With the inlet solid phase mass fraction of AI/AP powder improving, the mixing zone of powder moves from the end to the head of the combustor.The cone installation at the inlet facilitates the dispersion of the powder in the combustor.If the mass fraction of the particle phase at the head of the combustor increases and the average solid phase mass fraction on the axis decreases, the local accumulation of powder in front of the nozzle disappears.

References:

[1] MEYER M L.Powdered aluminum and oxygen rocket propellants:sub-scale com-bustion experiments:NASA-TM-106439 [R].USA:NASA,1993.
[2] GOROSHIN S, HIGGINS A J, LEE J H.Powdered magnesium-carbon dioxide propulsion concepts for mars mission:AIAA 99-2408[R].USA:AIAA,1999.
[3] MILLER T F, HERR J D.Green rocket propulsion by reaction of Al and Mg powders and water:AIAA 2004-4037 [R].USA:AIAA, 2004.
[4] 申慧君, 夏智勋, 胡建新, 等.粉末燃料冲压发动机理论性能分析[J].推进技术, 2007, 28(2):181-185.
[5] 缪万波, 夏智勋, 郭健, 等.金属/水反应冲压发动机理论性能计算与分析[J].推进技术, 2005, 26(6):563-566.
[6] 朱卫兵, 张永飞, 陈宏, 等.双脉冲发动机内流场研究[J].弹箭与制导学报, 2012, 32(1):114-118.
[7] 孙娜, 娄永春, 孙长宏, 等.某双脉冲发动机燃烧室两相流场数值分析[J].固体火箭技术, 2012, 35(3):335-338.
[8] 杨晋朝, 夏智勋, 胡建新.粉末燃料冲压发动机内镁粉尘云层流燃烧模型[J].国防科技大学学报, 2013, 35(5):13-19.
[9] 孔龙飞, 夏智勋, 胡建新, 等.驻涡火焰稳定器式粉末燃料冲压发动机两相流数值模拟[J].固体火箭技术, 2013, 36(1):32-36.
[10] 李芳, 胡春波, 何国强.Mg粉/CO2粉末火箭发动机性能分析[J].固体火箭技术, 2010, 33(4):414-418.
[11] 李悦, 胡春波, 孙海俊, 等.粉末火箭发动机燃烧室燃烧流动特性研究[J].固体火箭技术, 2014, 37(6):792-796.
[12] 李芳, 胡春波, 何国强, 等.Mg粉/CO2点火燃烧性能实验研究[J].固体火箭技术, 2011, 34(2):193-196.
[13] 冷林涛, 翁春生, 白桥栋, 等.单组元粉末发动机内流场数值模拟研究[J].弹道学报, 2017, 29(2):58-64.
[14] 徐学文, 牟俊林, 任建存, 等.固体火箭发动机喷管瞬态流场特性分析[J].火箭推进, 2015, 41(5):49-53.XU X W, MU J L, REN J C, et al.The analyses of transient flow-field characteristics in the nozzle of SRM[J].Journal of Rocket Propulsion, 2015, 41(5):49-53.

Memo

Memo:
-
Last Update: 2019-12-20