Flame acceleration in narrow channels: Applications for micropropulsion in low-gravity environments

被引:47
|
作者
Gamezo, VN [1 ]
Oran, ES [1 ]
机构
[1] USN, Res Lab, Lab Computat Phys & Fluid Dynam, Washington, DC 20375 USA
关键词
D O I
10.2514/1.16446
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
A laminar flame propagating toward the open end of a narrow channel filled with a gaseous combustible mixture can accelerate or oscillate, depending on the wall temperature and the channel width. The accelerating flame is able to produce a high-speed flow that has the potential to provide significant thrust. We study these phenomena using multidimensional reactive Navier-Stokes numerical simulations, and show that for adiabatic walls, the maximum flame acceleration occurs when the the channel is about five times larger than the reaction zone of a laminar flame. In three-dimensional square channels, the flame speed increases roughly two times faster than in two-dimensional channels. The accelerating flame generates weak compression waves that propagate with a local sound speed and can accelerate the unreacted material ahead of the flame to velocities close to the speed of sound without creating strong shocks. This combustion regime is of particular interest for micropropulsion because it allows efficient use of fuel and gradual development of thrust.
引用
收藏
页码:329 / 336
页数:8
相关论文
共 34 条
  • [21] Quasi-steady stages in the process of premixed flame acceleration in narrow channels
    Valiev, D. M.
    Bychkov, V.
    Akkerman, V.
    Eriksson, L. -E.
    Law, C. K.
    PHYSICS OF FLUIDS, 2013, 25 (09)
  • [22] Avalanche slope angles in low-gravity environments from active Martian sand dunes
    Atwood-Stone, Corwin
    McEwen, Alfred S.
    GEOPHYSICAL RESEARCH LETTERS, 2013, 40 (12) : 2929 - 2934
  • [23] Flow Behavior of Grains through the Dosing Station of Spacecraft under Low-Gravity Environments
    Antony, S. Joseph
    Arowosola, Babatunde
    Richter, Lutz
    Amanbayev, Tulegen
    Barakat, Thabit
    JOURNAL OF AEROSPACE ENGINEERING, 2017, 30 (06)
  • [24] MOTION OF BUBBLES WITH ADSORBED FILMS THROUGH A VISCOUS-FLUID IN LOW-GRAVITY ENVIRONMENTS
    SIEKMANN, J
    JOHANN, W
    MECHANICS RESEARCH COMMUNICATIONS, 1978, 5 (02) : 51 - 56
  • [25] INERTIAL ATTITUDE DETERMINATION SYSTEM DESIGNED FOR LOW-DYNAMICS APPLICATIONS IN LOW-GRAVITY ENVIRONMENT
    Szumski, A.
    Eissfeller, B.
    2017 24TH SAINT PETERSBURG INTERNATIONAL CONFERENCE ON INTEGRATED NAVIGATION SYSTEMS (ICINS), 2017,
  • [26] Dynamics of flame extinction in narrow channels with cold walls: Heat loss vs acceleration
    Dion, Claude M.
    Valiev, Damir M.
    Akkerman, V'yacheslav
    Demirgok, Berk
    Ugarte, Orlando J.
    Eriksson, Lars-Erik
    Bychkov, Vitaly
    PHYSICS OF FLUIDS, 2021, 33 (03)
  • [27] DEVELOPMENT OF NEUROSURGICAL INSTRUMENTATION AND PROCEDURES FOR EMERGENCY USE IN NULL AND LOW-GRAVITY ENVIRONMENTS - SPECULATIVE APPROACH
    LAKE, P
    AEROSPACE MEDICINE, 1973, 44 (03): : 319 - 323
  • [28] Three-dimensional numerical simulation of liquid sloshing in spacecraft containers in low-gravity environments
    Zhou, Hong
    Li, Junfeng
    Wang, Tianshu
    Qinghua Daxue Xuebao/Journal of Tsinghua University, 2005, 45 (05): : 658 - 661
  • [29] Propellant Management Devices for Low-Gravity Fluid Management: Past, Present, and Future Applications
    Hartwig, Jason W.
    JOURNAL OF SPACECRAFT AND ROCKETS, 2017, 54 (04) : 808 - 824
  • [30] Effect of Heat-Loss Boundary on Flame Acceleration and Deflagration-to-Detonation Transition in Narrow Channels
    Wang, Cheng
    Zhao, Yongyao
    Han, Wenhu
    COMBUSTION SCIENCE AND TECHNOLOGY, 2017, 189 (09) : 1605 - 1623