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DİFÜZÖR TİPİ YANMA ODASINDA GERÇEKLEŞEN ÖN KARIŞIMLI TÜRBÜLANSLI YANMADA ORTAYA ÇIKAN ALEVİN KONUMUNUN TÜRBÜLANS YOĞUNLUĞU VE TÜRBÜLANS UZUNLUK ÖLÇÜSÜ İLE DEĞİŞİMİNİN SAYISAL OLARAK İNCELENMESİ

Year 2018, Volume: 38 Issue: 1, 55 - 64, 30.04.2018

Abstract

Bu makalenin amacı, ön karışımlı yanma sonucu oluşan alevin, çeşitli türbülans yoğunluklarına ve türbülans uzunluk ölçeğine maruz kalması sonucu oluşan alev yeri değişikliğini incelemektir. Yakıtın yanma odasına giriş hızını değiştirmeden, sadece türbülans yoğunluğunun ve türbülans uzunluk ölçeğinin alev yeri üstüne etkisini görebilmek için araştırmalar difüzör tipi yanma odasında gerçekleştirilmiştir. Propanın türbülanslı ön karışımlı yanma simulasyonları tutarlı alev modeli (coherent flame model) kullanılarak kararlı akış rejiminde gerçekleştirilmiştir. Orta ve yüksek türbülans uzunluk ölçeği kullanıldığında türbülans yoğunluğundaki artış ile alevin difüzörün girişine doğru hareket ettiği gözlemlenmiştir. Düşük uzunluk ölçeği kullanılarak gerçekleştirilen simulasyonlarda, alev türbülans yoğunluğunun artması ile girişe doğru yaklaştığı ancak türbülans yoğunluğunun daha da arttılmasına rağmen alev konumunda kayda değer bir değişiklik olmadığı gözlemlenmiştir. Sonuçlar, türbülans yoğunluğu ve türbülans uzunluk ölçeğindeki artışın, maksimum alev alan yoğunluğunu arttırdığını göstermektedir. Dahası türbülans yoğunluğunun ve uzunluk ölçeğinin alev alan yoğunluğu, alevin şekli ve konumu üzerinde aynı anda etkili olduğu gösterilmiştir.

References

  • Abdel-Gayed R. G., Bradley D., and Lung F. K.-K., 1989, Combustion Regimes and the Straining of Turbulent Premixed Flames, Combustion and Flame, 76, 213–218.
  • Bagdanavicius A., Bowenb P. J., Bradleyc D., Lawes M. and Mansour M. S., 2015, Stretch Rate Effects and Flame Surface Densities in Premixed Turbulent Combustion up to 1.25 MPa, Combustion and Flame, 162, 4158-4166.
  • Borghi R., 1989, Turbulent Combustion Modelling, Progress in Energy and combustion, 14, 145-295.
  • Boudier P., Henriot S., Poinsot T. and Baritaud T., A, 1992, Model for Turbulent Flame Ignition and Propagation in Spark Ignition Engines, Proceedings of the Combustion Institute, 24, 503-510.
  • Bray, K. N C, Moss and J. B., 1977, a Unified Statistical Model of the Premixed Turbulent Flame, Acta Astronautica, 4, 291-219.
  • Cant R. S., Pope S. B., and Bray K. N. C., 1990, Modelling of Flamelet Surface-to-Volume Ratio in Turbulent Premixed Combustion, Twenty-Third Symposium Internationational on Combustion/The Combustion Institute, Cornell University, New York, 809–815.
  • CD-adapco, 2016, STAR CCM+ Documentation and User Guide, Version 11.02.009-R8, Melville, USA.
  • Chakraborty N., and Cant R. S., 2006, Statistical Behavior and Modeling of Theflame Normal Vectorin Turbulent Premixed Flames, Numerical Heat Transfer, Part A: Applications: An International Journal of Computation and Methodology, 50, 623–643.
  • Clavin, P., and G. Joulin., 1983, Premixed Flames in Large Scale and High-Intensity Turbulent Flow, Journal de Physique Lettres, 44, 1–12.
  • Duclos J M, Veynante D., and Poinsot T., 1993, A Comparison of Flamelet Models for Premixed Turbulent Combustion, Combustion and Flame, 7, 101–117.
  • Echekki T. and Mastorakos E., 2011, Turbulent Combustion Modeling (First Ed.) Springer-Verlag Berlin Heidelberg, New York:. Fru G., Thévenin D., and Janiga G., 2011, Impact of Turbulence Intensity and Equivalence Ratio on the Burning Rate of Premixed Methane-Air Flames, Energies, 4, 878–893.
  • Gülder Ö. L., 1990, Turbulence Premixed Flame Propagation Models for Different Combustion Regimes, 23rd Symposium International on Combustion, the Combustion Institute, 23, 743-750.
  • Gülder, Ö. L., and Smallwood G. L., 2007, Flame Surface Densities in Premixed Combustion at Medium To High Turbulence Intensities, Combustion Science and Technology, 179, 191–206.
  • Han Insuk, and Huh K. Y., 2008, Roles of Displacement Speed on Evolution of Flame Surface Density for Different Turbulent Intensities and Lewis Numbers in Turbulent Premixed Combustion’ Combustion and Flame, 152, 194–205.
  • Hartung G., Hult J., Kaminski C. F., Rogerson J. W. and Swaminathan N., 2008, Effect of Heat Release on Turbulence and Scalar-Turbulence Interaction in Premixed Combustion, Physics of Fluids, 20, 035110(1–16).
  • Kerl J., Lawn C., and Beyrau F., 2013, Three-Dimensional Flame Displacement Speed and Flame Front Curvature Measurements Using Quad-Plane PIV, Combustion and Flame, 160, 2757–2769.
  • Marble F. E. and Broadwell J. E., 1977, Coherent Flame Model for Turbulent Chemical Reactions, Project Squid Technical Report TRW-9-PV, Purdue Unversity, Indiana, USA.
  • Meneveau C., and Poinsot T., 1991, Stretching and Quenching of Flamelets in Premixed Turbulent Combustion, Combustion and Flame, 86, 311–32.
  • Peters N. 1989. ‘Length and Time Scales in Turbulent Combustion, Turbulent Reactive Flows, 242–56. In Borghi R., Murthy S.N.B., Editors, Turbulent Reactive Flows, Lecture Notes in Engineering, 40, 242–256.
  • Pope S.B., 1988, The Evolution of Surface in Turbulence’. Int. J. Engng Sci, 26, 445–469.
  • Pope S. B., 2000, Turbulent Flows (First Ed.), Cornell University, New York, USA.
  • Stiesch G., 2003, Modeling Engine Spray and Combustion Processes (First Ed.), Springer-Verlag Berlin Heidelberg, Hannover, Germany.
  • Tang B. H. Y., and Chan C. K., 2006, Simulation of Flame Surface Density and Burning Rate of a Premixed Turbulent Flame Using Contour Advection’ Combustion and Flame, 147, 49–66.
  • Tangermann E., Keppeler R., and Pfitzner M., 2010, ‘Premixed Turbulent Combustion Models for Large Eddy and RANS Simulations, Proceedings of ASME Turbo Expo : Power for Land, Sea and Air, 2, 203-212.
  • Veynante, D. and Vervisch L., 2002, Turbulent Combustion Modeling, Progress in Energy and Combustion Science, 120, 193–266.
  • Yuan, J., Ju Y. and Law C. K., 2006, Effects of Turbulence and Flame Instability on Flame Front Evolution, Physics of Fluids, 8, 104105-1– 104105-9.
  • Zimont V. L., Polifke W., Bettelini M and Weisenstein W., 1998, An Efficient Computational Model for Premixed Turbulent Combustion at High Reynolds Numbers Based on a Turbulent Flame Speed Closure, J. Eng. Gas Turbines & Power, 120, 526–532.

NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES

Year 2018, Volume: 38 Issue: 1, 55 - 64, 30.04.2018

Abstract

This study aims to investigate the response of the flame location of a turbulent premixed flame that has been exposed to various turbulence intensities and turbulence length scales. A diffuser-type burner is used to reveal the influence of turbulence intensity and turbulence length scales on the flame location of premixed propane–air flames without changing the inlet velocity of the fuel. Numerical simulations are performed for the turbulent premixed propane flames by using a coherent flame model under steady-state conditions. Results show that the flame location moves toward the inlet of the diffuser combustor with an increase in turbulence intensity for moderate and high turbulence length scales. The behavior of the flame location is different for the low turbulence length scale. The flame location initially decreases with an increase in turbulence intensity and subsequently stabilizes. Furthermore, the maximum flame area density is shown to increase with an increase in the turbulence intensity and the turbulence length scale, as the flame moves toward the inlet in these cases. It is clearly documented how turbulence intensity and turbulence length scale simultaneously influence the flame area density, flame shape, and flame location in a diffuser- type burner.

References

  • Abdel-Gayed R. G., Bradley D., and Lung F. K.-K., 1989, Combustion Regimes and the Straining of Turbulent Premixed Flames, Combustion and Flame, 76, 213–218.
  • Bagdanavicius A., Bowenb P. J., Bradleyc D., Lawes M. and Mansour M. S., 2015, Stretch Rate Effects and Flame Surface Densities in Premixed Turbulent Combustion up to 1.25 MPa, Combustion and Flame, 162, 4158-4166.
  • Borghi R., 1989, Turbulent Combustion Modelling, Progress in Energy and combustion, 14, 145-295.
  • Boudier P., Henriot S., Poinsot T. and Baritaud T., A, 1992, Model for Turbulent Flame Ignition and Propagation in Spark Ignition Engines, Proceedings of the Combustion Institute, 24, 503-510.
  • Bray, K. N C, Moss and J. B., 1977, a Unified Statistical Model of the Premixed Turbulent Flame, Acta Astronautica, 4, 291-219.
  • Cant R. S., Pope S. B., and Bray K. N. C., 1990, Modelling of Flamelet Surface-to-Volume Ratio in Turbulent Premixed Combustion, Twenty-Third Symposium Internationational on Combustion/The Combustion Institute, Cornell University, New York, 809–815.
  • CD-adapco, 2016, STAR CCM+ Documentation and User Guide, Version 11.02.009-R8, Melville, USA.
  • Chakraborty N., and Cant R. S., 2006, Statistical Behavior and Modeling of Theflame Normal Vectorin Turbulent Premixed Flames, Numerical Heat Transfer, Part A: Applications: An International Journal of Computation and Methodology, 50, 623–643.
  • Clavin, P., and G. Joulin., 1983, Premixed Flames in Large Scale and High-Intensity Turbulent Flow, Journal de Physique Lettres, 44, 1–12.
  • Duclos J M, Veynante D., and Poinsot T., 1993, A Comparison of Flamelet Models for Premixed Turbulent Combustion, Combustion and Flame, 7, 101–117.
  • Echekki T. and Mastorakos E., 2011, Turbulent Combustion Modeling (First Ed.) Springer-Verlag Berlin Heidelberg, New York:. Fru G., Thévenin D., and Janiga G., 2011, Impact of Turbulence Intensity and Equivalence Ratio on the Burning Rate of Premixed Methane-Air Flames, Energies, 4, 878–893.
  • Gülder Ö. L., 1990, Turbulence Premixed Flame Propagation Models for Different Combustion Regimes, 23rd Symposium International on Combustion, the Combustion Institute, 23, 743-750.
  • Gülder, Ö. L., and Smallwood G. L., 2007, Flame Surface Densities in Premixed Combustion at Medium To High Turbulence Intensities, Combustion Science and Technology, 179, 191–206.
  • Han Insuk, and Huh K. Y., 2008, Roles of Displacement Speed on Evolution of Flame Surface Density for Different Turbulent Intensities and Lewis Numbers in Turbulent Premixed Combustion’ Combustion and Flame, 152, 194–205.
  • Hartung G., Hult J., Kaminski C. F., Rogerson J. W. and Swaminathan N., 2008, Effect of Heat Release on Turbulence and Scalar-Turbulence Interaction in Premixed Combustion, Physics of Fluids, 20, 035110(1–16).
  • Kerl J., Lawn C., and Beyrau F., 2013, Three-Dimensional Flame Displacement Speed and Flame Front Curvature Measurements Using Quad-Plane PIV, Combustion and Flame, 160, 2757–2769.
  • Marble F. E. and Broadwell J. E., 1977, Coherent Flame Model for Turbulent Chemical Reactions, Project Squid Technical Report TRW-9-PV, Purdue Unversity, Indiana, USA.
  • Meneveau C., and Poinsot T., 1991, Stretching and Quenching of Flamelets in Premixed Turbulent Combustion, Combustion and Flame, 86, 311–32.
  • Peters N. 1989. ‘Length and Time Scales in Turbulent Combustion, Turbulent Reactive Flows, 242–56. In Borghi R., Murthy S.N.B., Editors, Turbulent Reactive Flows, Lecture Notes in Engineering, 40, 242–256.
  • Pope S.B., 1988, The Evolution of Surface in Turbulence’. Int. J. Engng Sci, 26, 445–469.
  • Pope S. B., 2000, Turbulent Flows (First Ed.), Cornell University, New York, USA.
  • Stiesch G., 2003, Modeling Engine Spray and Combustion Processes (First Ed.), Springer-Verlag Berlin Heidelberg, Hannover, Germany.
  • Tang B. H. Y., and Chan C. K., 2006, Simulation of Flame Surface Density and Burning Rate of a Premixed Turbulent Flame Using Contour Advection’ Combustion and Flame, 147, 49–66.
  • Tangermann E., Keppeler R., and Pfitzner M., 2010, ‘Premixed Turbulent Combustion Models for Large Eddy and RANS Simulations, Proceedings of ASME Turbo Expo : Power for Land, Sea and Air, 2, 203-212.
  • Veynante, D. and Vervisch L., 2002, Turbulent Combustion Modeling, Progress in Energy and Combustion Science, 120, 193–266.
  • Yuan, J., Ju Y. and Law C. K., 2006, Effects of Turbulence and Flame Instability on Flame Front Evolution, Physics of Fluids, 8, 104105-1– 104105-9.
  • Zimont V. L., Polifke W., Bettelini M and Weisenstein W., 1998, An Efficient Computational Model for Premixed Turbulent Combustion at High Reynolds Numbers Based on a Turbulent Flame Speed Closure, J. Eng. Gas Turbines & Power, 120, 526–532.
There are 27 citations in total.

Details

Primary Language English
Subjects Mechanical Engineering
Journal Section Research Article
Authors

Ibrahim Nazzal This is me

Özgür Ertunç This is me

Publication Date April 30, 2018
Published in Issue Year 2018 Volume: 38 Issue: 1

Cite

APA Nazzal, I., & Ertunç, Ö. (2018). NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES. Isı Bilimi Ve Tekniği Dergisi, 38(1), 55-64.
AMA Nazzal I, Ertunç Ö. NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES. Isı Bilimi ve Tekniği Dergisi. April 2018;38(1):55-64.
Chicago Nazzal, Ibrahim, and Özgür Ertunç. “NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES”. Isı Bilimi Ve Tekniği Dergisi 38, no. 1 (April 2018): 55-64.
EndNote Nazzal I, Ertunç Ö (April 1, 2018) NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES. Isı Bilimi ve Tekniği Dergisi 38 1 55–64.
IEEE I. Nazzal and Ö. Ertunç, “NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES”, Isı Bilimi ve Tekniği Dergisi, vol. 38, no. 1, pp. 55–64, 2018.
ISNAD Nazzal, Ibrahim - Ertunç, Özgür. “NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES”. Isı Bilimi ve Tekniği Dergisi 38/1 (April 2018), 55-64.
JAMA Nazzal I, Ertunç Ö. NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES. Isı Bilimi ve Tekniği Dergisi. 2018;38:55–64.
MLA Nazzal, Ibrahim and Özgür Ertunç. “NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES”. Isı Bilimi Ve Tekniği Dergisi, vol. 38, no. 1, 2018, pp. 55-64.
Vancouver Nazzal I, Ertunç Ö. NUMERICAL INVESTIGATION OF THE FLAME LOCATION OF TURBULENT PREMIXED COMBUSTION IN A DIFFUSER BURNER EXPOSED TO VARIOUS TURBULENCE INTENSITIES AND TURBULENCE LENGTH SCALES. Isı Bilimi ve Tekniği Dergisi. 2018;38(1):55-64.