旋流与炭黑对聚乙烯固体燃料冲压发动机工作性能的影响

doi:10.13675/j.cnki.tjjs.190340

推进技术 ›› 2020, Vol. 41 ›› Issue (6): 1296-1304.DOI: 10.13675/j.cnki.tjjs.190340

旋流与炭黑对聚乙烯固体燃料冲压发动机工作性能的影响

李唯暄¹，杨海涛^1,2，陈雄¹，薛素林¹

1.南京理工大学机械工程学院，江苏南京 210094;2.四川航天系统工程研究所，四川成都 610100

发布日期:2021-08-15
作者简介:李唯暄，博士生，研究领域为固体燃料冲压发动机燃烧学。E-mail：liweixuan-203@njust.edu.cn
基金资助:
总装备部预先研究项目（404040301）。

Effects of Addition of Carbon Black and Swirl Flowon Combustion Performance of PolyethyleneFueled Solid Fuel Ramjet

1.School of Mechanical and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;2.System Engineering Institute of Sichuan Aerospace,Chengdu 610100,China

Published:2021-08-15

摘要/Abstract

摘要： 为探究旋流与添加炭黑对聚乙烯推进剂固体燃料冲压发动机工作性能的影响，采用实验和数值仿真相结合的方法进行研究。结果表明：在聚乙烯中加入质量分数为5%的炭黑可以提高补燃室压强和温度，增大燃烧室内高温区面积，且对推进剂燃烧效率、发动机工作性能以及发动机燃烧稳定性具有积极作用。与聚乙烯推进剂相比，含炭黑推进剂在无旋工况下可使发动机平均燃面退移速率提高15%，特征速度提高4%，推力提高11%。在旋流工况下，添加炭黑可使推进剂平均燃面退移速率提高29%，特征速度提高8.5%，发动机推力提高22.3%。结果表明：在添加炭黑和旋流的共同作用下，对发动机工作性能提升更加明显。相比于无旋工况而言，旋流的引入有助于燃气与来流空气的掺混，提高推进剂燃烧效率，对推进剂燃面退移速率提升具有积极作用。

关键词: 固体燃料冲压发动机;炭黑;旋流进气;燃烧稳定性;燃面退移速率

Abstract: The investigation of combustion performance of carbon black-polyethylene fueled solid fuel ramjet (SFRJ) with swirl flow was conducted via experimental and numerical approach. The result indicates that the addition of 5% of mass fraction carbon black could enhance the pressure and temperature of the combustor, increase the area of high temperature zone in the SFRJ chamber and enhance the combustion efficiency, performance and combustion stability of solid fuel ramjet. Compared with polyethylene fueled ramjet, the carbon black-polyethylene could increase 15% of the average regression rate, 4% of characteristic velocity, 11% of thrust. As for swirl intake operating condition, the addition of carbon black could increase 29% of average regression rate, 8.5% of characteristic velocity, 22.3% of thrust compared for none-swirl cases, which indicate that with the addition of swirl intake and carbon black, the performance of the SFRJ could be increased more significantly. In addition, the increasing of swirl intensity could increase the mixing degree of the propellant and incoming air, enhance the combustion efficiency and increase the regression rate of solid fuel ramjet.

Key words: Solid fuel ramjet;Carbon black;Swirl flow;Combustion stability;Regression rate

李唯暄，杨海涛，陈雄，薛素林. 旋流与炭黑对聚乙烯固体燃料冲压发动机工作性能的影响[J]. 推进技术, 2020, 41(6): 1296-1304.

LI Wei-xuan¹, YANG Hai-tao^1,2, CHEN Xiong¹, XUE Su-lin¹. Effects of Addition of Carbon Black and Swirl Flowon Combustion Performance of PolyethyleneFueled Solid Fuel Ramjet[J]. Journal of Propulsion Technology, 2020, 41(6): 1296-1304.

参考文献

[1] Krishnan S， George Philmon. Solid Fuel Ramjet Combustor Design[J]. Progress in Aerospace Sciences， 1998， 34（3）， 219-256.
[2] Metochianakis M E， Netzer D W. Modeling Solid-Fuel Ramjet Combustion Including Radiation Heat Transfer to the Fuel Surface[J]. Journal of Spacecraft and Rocket， 1983， 20(8): 405-406.
[3] 杨海涛，陈雄，相恒升，等. 不同环境压强下炭黑含量对聚乙烯点火和燃烧性能的影响[J]. 含能材料， 2017， 25（12）： 976-982.
[4] Pein R， Vinnemeier F. Swirl and Fuel Composition Effects on Boron Combustion in Solid-Fuel Ramjets[J]. Journal of Propulsion & Power， 1992， 8(3): 609-614.
[5] Stowe R A， Dubois C, Hurris P G, et a1. Performance Prediction of Ducted Rocket Combustor Using a Simulated Solid Fuel[J]. Journal of Propulsion and Power， 2004， 20(5): 936-944.
[6] Dupays Jo?l. Two-Phase Unsteady Flow in Solid Rocket Motors[J]. Aerospace Science and Technology， 2002, 6(6): 413-422.
[7] 刘巍，杨涛，胡建新，等. 固体燃料冲压发动机旋流燃烧特性试验[J]. 推进技术， 2009， 30（1）： 5-8.
[8] 赵春宇，李斌，鞠玉涛. 炭粉燃烧在火箭冲压发动机补燃室内燃烧特性的分析[J]. 火箭推进， 2007， 33（5）： 37-41.
[9] 冯喜平，周晓斯，郑亚，等. 铝镁贫氧推进剂固冲发动机两相燃烧数值模拟[J]. 固体火箭技术， 2011， 34（4）： 434-435.
[10] 胡建新，夏智勋，刘君，等. 非壅塞火箭冲压发动机补燃室两相流数值模拟[J]. 推进技术， 2004， 25（3）： 193-195.
[11] 郭莹，吴虎，韩文俊. 含硼固体火箭冲压发动机中燃气旋流角对补燃室的影响[J]. 科学技术与工程， 2009， 19（4）： 1081-1084.
[12] 李唯暄，吕庆山，陈雄，等. 旋流对固体燃料冲压发动机燃烧过程的影响[J]. 航空动力学报， 2017， 32（5）： 1250-1258.
[13] Gascoin N， Fau G， Gillard P. Flash Pyrolysis of High Density Polyethylene[R]. AIAA 2013-3833.
[14] Li W， Chen X， Musa O， et al. Investigation of the Effect of Geometry of Combustor on Combustion Characteristics of Solid-Fuel Ramjet with Swirl Flow[J]. Applied Thermal Engineering， 2018， 145: 229-244.
[15] Li W， Chen X， Cai W， et al. Numerical Investigation of the Effect of Sudden Expansion Ratio of Solid Fuel Ramjet Combustor with Swirling Turbulent Reacting Flow[J]. Energies， 2019， 12(9).
[16] Musa O， Weixuan L， Xiong C， et al. Experimental Investigation on the Effect of Swirling Flow on Combustion Characteristics and Performance of Solid Fuel Ramjet[J]. Acta Astronautica， 2018,148(7): 163-174.

旋流与炭黑对聚乙烯固体燃料冲压发动机工作性能的影响

Effects of Addition of Carbon Black and Swirl Flowon Combustion Performance of PolyethyleneFueled Solid Fuel Ramjet

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价