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Flow, Turbulence and Combustion

, Volume 97, Issue 3, pp 743–760 | Cite as

Hydrodynamics During the Transient Evolution of Open Jet Flows from/to Wall Attached Jets

  • A. Valera-MedinaEmail author
  • H. Baej
Open Access
Article

Abstract

Swirl stabilized flows are the most widely deployed technology used to stabilize gas turbine combustion systems. However, there are some coherent structures that appear in these flows close to the nozzle whose occurrence and stability are still poorly understood during transition. The external recirculation zone and the Precessing Vortex Core to/from the Coanda effect are some of them. Thus, in this paper the transition of an Open Jet Flow-Medium Swirl flow pattern to/from a Coanda jet flow is studied using various geometries at a fixed Swirl number. Phase Locked Stereo Particle Image Velocimetry and High Speed Photography experiments were conducted to determine fundamental characteristics of the phenomenon. It was observed that the coherent structures in the field experience a complete annihilation during transition, with no dependency between the structures formed in each of the flow states. Moreover, transition occurs at a particular normalized step size whilst some acoustic shifts in the frequencies of the system were noticed, a phenomenon related to the strength of the vortical structures and vortices convection. It is concluded that a transient, precessing, Coanda Vortex Breakdown is formed, changing flow dynamics. The structure progresses to a less coherent Trapped Vortex between the two states. During the phenomenon there are different interactions between structures such as the Central Recirculation Zone, the High Momentum Flow Region and the Precessing Vortex Core that were also documented.

Keywords

Swirling flows Coherent structures Coanda Precessing vortex core Trapped vortex 

References

  1. 1.
    Syred, N.: A review of oscillation mechanisms and the role of the precessing vortex core (PVC) in swirl combustion systems. Prog. Energy Combust. Sci. 32, 93–161 (2006)CrossRefGoogle Scholar
  2. 2.
    Syred, N., Beer, J.M.: Combustion in swirling flows: a review. Combust. Flame 23, 143–201 (1974)CrossRefGoogle Scholar
  3. 3.
    Gupta, A.K., Lilley, D.J., Syred, N.: Swirl flows, Abacus Press, Tunbridge Wells UK (1984)Google Scholar
  4. 4.
    Lieuwen, T., Yang, V.: Combustion Instabilities in Gas Turbine Engines. In: Progress in Astronautics Aeronautics, AIAA U.S.A, vol. 210, pp 213–276. AIAA, U.S.A. (2005)Google Scholar
  5. 5.
    Dawson, J.R., Rodriquez-Martinez, V.M., Syred, N., O’Doherty, T.: Low Frequency Combustion Oscillations in a Swirl Burner Furnace, AIAA Int Meet Paper 2004-9197. Nevada, U.S.A (2004)Google Scholar
  6. 6.
    Dawson, J.R., Rodriquez-Martinez, V.M., Syred, N., O’Doherty, T.: The effect of combustion instability on the structure of recirculation zones in con fined swirling flames. Comput. Sci. Technol. 177, 1–22 (2005)Google Scholar
  7. 7.
    Vanierschot, M., Van den Bulck, E.: Hysteresis in flow patterns in annular swirling jets. Exp. Thermal Fluid Sci. 31(6), 513–524 (2007)CrossRefzbMATHGoogle Scholar
  8. 8.
    Lubert, C.: On Some Recent Applications of the Coanda Effect to Acoustics, Proc Meet Acoust 11, ref 040006 (2011)Google Scholar
  9. 9.
    Osamor, F.A., Ahlert, R.C.: Oil and water separation, state of the art, EPA, Industrial Environmental Research Laboratory EPA-600/2-78-069 (1978)Google Scholar
  10. 10.
    Vanoverberghe, K.: Flow, Turbulence and Combustion of Premixed Swirling Jet Flames. PhD Thesis, Katholieke Universiteit Leuven, Leuven, Belgium (2004)Google Scholar
  11. 11.
    Sidhu, B.S., Syred, N., Styles, A.C.: Flow and General Characteristics of High Performance Diodes, ASME Winter Meet, pp 113–122. U.S.A, Chicago (1980)Google Scholar
  12. 12.
    Lubert, C., Shafer, R.: Shock Associated Noise Generation in Curved Turbulent Coanda Wall Jets, Proc Meet Acoust 14, ref 040002 (2011)Google Scholar
  13. 13.
    Wing, D.J.: Static investigation of two fluidic Thrust-Vectoring concepts on a Two-Dimensional Convergent-Divergent nozzle, NASA. Tech Memo, 4574 (1994)Google Scholar
  14. 14.
    Kniesburges, S., Hesselmann, C., Becker, S., Schlücker, E., Döllinger, M.: Influence of vortical flow structures on the glottal jet location in the supraglottal region. J. Voice 27(5), 531–544 (2013)CrossRefGoogle Scholar
  15. 15.
    Lubert, C.: Application of turbulent mixing noise thoery to flows over coanda surfaces. Int. J. Acoust. Vib. 13(1), 17–30 (2008)Google Scholar
  16. 16.
    Aleseenko, S., Kuibin, P., Okulov, V., Shtork, S.: Helical vortex in swirl flow. J. Fluid Mech. 382, 195–243 (1999)MathSciNetCrossRefzbMATHGoogle Scholar
  17. 17.
    Mirkov, N., Rasuo, B.: Maneuverability of an UAV with Coanda Effect Based Lift Production, 28th Int Cong Aeronaut Sci (ICAS), pp. 1–6 U.S.A (2012)Google Scholar
  18. 18.
    Rumsey, C.L., Nishino, T.: Numerical Study Comparing RANS and LES Approaches on a Circulation Control Airfoil, 49Th AIAA Sci Meet, ref. AIAA 2011-1179. U.S.A, Orlando, Florida (2011)Google Scholar
  19. 19.
    Dragan, V., Stanciu, V.: Contribution regarding a fluid barrier super circulation technique. UPB Scie. Bull Series D Mech. Engin. 75(2), 17–30 (2013)Google Scholar
  20. 20.
    Tavakoli, E., Hosseini, R.: Large eddy simulation of turbulent flow and mass transfer in far field of swirl diffusers. Energy Build. 59, 194–202 (2013)CrossRefGoogle Scholar
  21. 21.
    Singh, N.K., Ramamurthi, K.: Formation of coanda jet from Sharp-Edged swirl nozzle with base plate. Exp. Thermal Fluid Sci. 33, 675–682 (2009)CrossRefGoogle Scholar
  22. 22.
    Nishino, T., Sharif, K.: Effect of jet Nozzle-Lip momentum loss on circulation control airfoil performance. AIAA J. 50(3), 551–558 (2012)CrossRefGoogle Scholar
  23. 23.
    Turrell, M.D., Stopford, P.J., Syed, K., Buchanan, E.: CFD Simulations of the flow within and downstream of high swirl lean premixed gas turbine combustors. Proc. ASME 1, 31–38 (2004)Google Scholar
  24. 24.
    Jakirlic, S., Hanjalic, K., Tropea, C.: Modelling rotating and swirling turbulent flows, a perpetual challenge. AIAA J. 40(10), 1984–1997 (2002)CrossRefGoogle Scholar
  25. 25.
    Sadiki, A., Maltseva, A., Wegnera, B., Flemminga, F., Kempfa, A., Janickaa, J.: Unsteady Methods (URANS and LES) for simulation of combustion systems. Int. J. Thermal Sci. 45(8), 760–773 (2006)CrossRefGoogle Scholar
  26. 26.
    Jochmann, P.: Numerical simulation of a precessing vortex breakdown. Int. J. Heat Fluid Flow 27, 192–203 (2006)CrossRefGoogle Scholar
  27. 27.
    Lucca-Negro, O., O’Doherty, T.: Vortex Breakdown: a review. Prog. Energy Combust. Sci. 27, 431–481 (2001)CrossRefGoogle Scholar
  28. 28.
    Candel, S., Durox, D., Schuller, T., Bourgouin, J.F., Moeck, J.: Progress in swirling flames and annular combustor dynamics, European Combust Meet, pp. 1–11 Sweden (2013)Google Scholar
  29. 29.
    Candel, S., Durox, D., Schuller, T., Bourgouin, J.F., Moeck, J.: Dynamics of swirling flames. Annual Review of Fluid Mech. 46, 147–173 (2014)MathSciNetCrossRefzbMATHGoogle Scholar
  30. 30.
    Mullyadzhanov, R., Hadziabdic, M., Hanjalic, K.: LES Investigation of the hysteresis regime in the cold model of a Rotating-Pipe swirl burner, flow. Turbulence Combust. 94, 175–198 (2015)CrossRefGoogle Scholar
  31. 31.
    Vanierschot, M., Van den Bulck, E.: Numerical study of hysteresis in annular swirling jets with a stepped-conical nozzle. Int. J. Numerical Methods Fluids 54, 313–324 (2007)CrossRefzbMATHGoogle Scholar
  32. 32.
    Vanierschot, M., Van den Bulck, E.: Computation of a drastic flow pattern change in an annular swirling jet caused by a small change in inlet swirl. Int. J. Numerical Methods Fluids 59(5), 577–592 (2009)CrossRefzbMATHGoogle Scholar
  33. 33.
    Abdulsada, M., Syred, N., Bowen, P., O’Doherty, T., Griffiths, A., Marsh, R., Crayford, A.: Effect of exhaust confinement and fuel type upon the blowoff limits and fuel switching ability of swirl combustors. App. Thermal Eng. 48, 426–435 (2012)CrossRefGoogle Scholar
  34. 34.
    Vigueras-Zuniga, M.O., Valera-Medina, A., Syred, N.: Studies of the precessing vortex core in swirling flows. J. App. Res. Tech. 10(3), 755–765 (2012)zbMATHGoogle Scholar
  35. 35.
    Valera-Medina, A., Syred, N., Griffiths, A.: Visualization of coherent structures in a swirl burner under isothermal conditions. Combust. Flame 159, 1723–1734 (2009)CrossRefGoogle Scholar
  36. 36.
    Zhou, J., Adrian, R.J., Balachandar, S., Kendall, T.M.: Mechanisms for generation of coherent packets of hairpin vortices in channel flow. J. Fluid Mech. 387, 353–359 (1999)MathSciNetCrossRefzbMATHGoogle Scholar
  37. 37.
    Adrian, R.J., Christensen, K.T., Liu, Z.C.: Analysis and interpretation of instantaneous turbulent velocity fields. Exp. Fluids 29, 275–290 (2000)CrossRefGoogle Scholar
  38. 38.
    Dantec Dynamics: DynamicStudio Documentation Swirling Strenght Script (2009) [online] http://www.dantecdynamics.com/, [Accessed 12 th Dec 2015]
  39. 39.
    Bomminayuni, S., Stoesser, T.: Turbulence statistics in an Open-Channel flow over a rough bed. J. Hydraul Eng. 137(11), 1347–1358 (2011)CrossRefGoogle Scholar
  40. 40.
    Lieuwen, T.: Unsteady combustor physics, cambridge university press. USA, 404 (2012)Google Scholar
  41. 41.
    Stohr, S., Arndt, C.M., Meier, W.: Effects of Damköhler number on vortex flame interaction in gas turbine model combustor. Proc. Combust. Inst. 34, 3107–3115 (2013)CrossRefGoogle Scholar
  42. 42.
    Rockwell, D.: Oscillations of impinging shear layers. AIAA J. 21(5), 645–664 (1983)CrossRefGoogle Scholar
  43. 43.
    Najm, H.N., Ghoniem, A.F.: A numerical simulation of the convective instability in a dump combustor. AIAA J. 29, 911–919 (1991)CrossRefGoogle Scholar

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.School of EngineeringCardiff UniversityCardiffUK

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