A numerical simulation of pulsed reacting jets

  • Ashvin Hosangadi
  • Charles L. Merkle
  • Stephen R. Turns
Part 2: Contributed lectures
First Online:
Part of the Lecture Notes in Physics book series (LNP, volume 351)

Abstract

Numerical simulations of unsteady combusting jets are performed using a dual-time, fully coupled, implicit procedure that enables time step sizes to be based on the particle velocity. Results are presented for a range of I'roude numbers that span the momentum dominated to buoyancy-dominated regimes. At high Froude number conditions, heat release is shown to be stabilizing while at low Froude numbers it is destabilizing to the point that the flames become spontaneously unstable. Dimensional evaluation of the buoyancy induced unsteady effects agrees well with the 10–15 11z. flickering observed in laminar flame experiments.

Keywords

Froude Number Mixture Fraction AIAA Paper Diffusion Flame AIAA Journal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

  1. 1.
    Choi, Y.H., Commutation of Low Mach_ Number. Compressible Flow, Ph.D. Dissertation, Department of Mechanical Engineering, Pennsylvania State University, 1989.Google Scholar
  2. 2.
    Briley, W.R., McDonald, II., and Shamroth, S.J., “A Low Mach Number Euler Formulation and Application to Time-Iterative LT31 schemes”, AIAA Journal, Vo1.21, No.4, 1983, p.1467.Google Scholar
  3. 3.
    Turkel, E., “Preconditioned Methods for solving the Incompressible and Low Speed Compressible Equations”, J. Comput. Phys., Vol.72, 1987, p.277.CrossRefGoogle Scholar
  4. 4.
    Guerra, J., and Gustafsson, B., “Numerical Method for Incompressible and Compressible Flow Problems with Smooth Solutions”, J. Comp: Phys., Vo1.63, 1986, p.377.CrossRefGoogle Scholar
  5. 5.
    Majda, A., and Sethian, J., “The Derivation and Numerical Solution of the Equations for Zero Mach Number Combustion”, Comb. Sci. and Tech., Vol.42, 1985, p.185.Google Scholar
  6. 6.
    McMurtry, P.A., Jon, W.H., Riley, J.J., and Metcalfe, R.W., “Direct Numerical Simulations of a Reacting Mixing Layer with Heat Release”, AIAA Journal, Vol.24, No.6, 1986, p.962.Google Scholar
  7. 7.
    Maha.lingam, S., Cantwell, B., and Ferziger, J., “Effects of Heat Release on the Structure and Stability of a Coflowing, Chemically Reacting Jet”, AIAA Paper No. 89–0661, 1989.Google Scholar
  8. 8.
    Laskey, K.J., Ellzey, J.L., and Oran, E.S., “A Numerical Study of an Unsteady Diffusion Flame”, AIAA Paper No. 89–0572, 1989.Google Scholar
  9. 9.
    Bilger, R. W., “The Structure of Diffusion Flames,” Combustion Sci. and Technology, Vol.(13), 1976, p.155.Google Scholar
  10. 10.
    Hosa,ngadi, A., Merkle, C.L., and Turns, S.R., “Analysis of Forced Combusting Jets”, AIAA Paper No. 89–0662, 1989.Google Scholar
  11. 11.
    Rai, M.M., “Navier Stokes Simulations of Blade Vortex Interactions using Higher Order Accurate Upwind Schemes”, AIAA Paper No. 87–6543, 1987.Google Scholar
  12. 12.
    Merkle, C.L., and Athavale, M., “A Time Accurate Unsteady Incompressible Algorithm Based on Artificial Compressibility”, AIAA Paper No. 87–1137, AIAA 8th Computational Fluid Dynamics Conference, JUne 9–11, 1987, Honolulu, IIA.Google Scholar
  13. 13.
    Merkle, C.L., and Choi, Y.H., “Computation of Low-Speed Flow with Heat Addition”, AIAA Journal, Vo1.25, No.6, 1987, p.831.Google Scholar
  14. 14.
    Douglas, J. and Gunn, J.E., “A General Formulation of Alternating Direction Method-Part I. Parabolic and Hyperbolic Problems”, Numerische Mathematik, Vol.(82), 1964, p.428.CrossRefGoogle Scholar
  15. 15.
    Beam, R.M., and Warming, R.F., “An Implicit Finite-Difference Algorithm for Hyperbolic Systems in Conservation-Law Form”, J. Comput. Phys., Vol.(22), 1976, p.87.CrossRefGoogle Scholar
  16. 16.
    Merkle, C.L., and Choi, D., “Application of Time-Iterative Schemes to Incompressible Flow”, AIAA Journal, Vo1.23, 1985, p.1518.Google Scholar
  17. 17.
    Santoro, R.J., Yeh, T.T., Horvath, J.J., and Semerjian, H.G., “The Transport and Growth of Soot Particles in Laminar Diffusion Flames”, Comb. Sci. and Tech., Vo1.53, 1987, p.89.Google Scholar

Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • Ashvin Hosangadi
    • 1
  • Charles L. Merkle
    • 1
  • Stephen R. Turns
    • 1
  1. 1.Department of Mechanical EngineeringThe Pennsylvania State UniversityPA16802

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