Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-24T16:23:02.019Z Has data issue: false hasContentIssue false
  • English
  • Français

Flame Stability Analysis of Turbulent Non-Premixed Reacting Flow in a Simulated Solid-Fuel Ramjet Combustor

Published online by Cambridge University Press:  05 May 2011

Tong-Miin Liou ,
Po-Wen Hwang ,
Yi-Chen Li  and
Chia-Yen Chan
Tong-Miin Liou*
Affiliation:
Department of Aeronautical Enigneering, Feng Chia University, Taichung, Taiwan 40724, R.O.C.
Po-Wen Hwang*
Affiliation:
Department of Aeronautical Enigneering, Feng Chia University, Taichung, Taiwan 40724, R.O.C.
Yi-Chen Li*
Affiliation:
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, R.O.C.
Chia-Yen Chan*
Affiliation:
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, R.O.C.
*
*Professor
**Assistant Professor
***Graduate Student
***Graduate Student
Get access

Abstract

To investigate the flame stability in a solid-fuel ramjet combustor, time-accurate calculations using a compressible flow solver with a modified Godunov flux-splitting scheme have been performed on high Reynolds number turbulent non-premixed reacting flows over a backward-facing step with mass bleed on one wall. The combustion process considered was a one-step, irreversible, and finite rate chemical reaction. The numerical results for reacting flows show that the two-dimensional (2-D) simulations can provide reasonable predictions on the dimensionless particle number decay rate and residence time in the flame holding recirculation zone, evolutions of both axial and transverse mean velocity profiles, and critical characteristic exhaust velocity separating the sustained combustion from the non-sustained combustion. In addition to the validation of 2-D reacting flow calculations, two- and three-dimensionally computed mean-velocity profiles are compared with existing experimental data for isothermal flows to check the suitability of 2-D simulations on capturing the large-scale mean flows.

Keywords

Flame stabilityTurbulent reacting flowNon-premixed flameRamjet combustorLarge-eddy simulation
Type
Articles
Information
Journal of Mechanics , Volume 18 , Issue 1 , March 2002 , pp. 43 - 51
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Liou, T. M., Lien, W. Y. and Hwang, P. W., “Large-Eddy Simulations of Turbulent Reacting Flows in a Chamber with Gaseous Ethylene Injecting through the Porous Wall,” Combust. Flame, 99, pp. 591–600 (1994).CrossRefGoogle Scholar
2Liou, T. M. and Hwang, P. W., “Numerical Visualization and Residence Time Determination of Turbulent Reacting Duct Flow with Mass Bleed and a Backstep on One Wall,” 27th Symp. Combustion, pp. 1131–1138 (1998).CrossRefGoogle Scholar
3Rao, K. V. L. and Lefebvre, A. H., “Flame Blowoff Studies Using Large-Scale Flameholders,” J. Eng. Power , 104, pp. 853–857 (1982).CrossRefGoogle Scholar
4Schefer, R. W., Namazian, M., Kelly, J. and Perrin, M., “Effect of Confinement on Bluff-Body Burner Recirculation Zone Characteristics and Flame Stability,” Combust. Sci. Technol., 120, pp. 185–211 (1996).CrossRefGoogle Scholar
5Schulte, G., “Fuel Regression and Flame Stabilization Studies of Solid-Fuel Ramjets,” J. Propulsion Power , 2, pp. 301–304 (1986).CrossRefGoogle Scholar
6Elands, R., Dijkstra, F. and Zandbergen, B., “Experimental and Computational Flammability Limits in a Solid Fuel Ramjet,” AIAA Paper 90-1964 (1990).Google Scholar
7Netzer, A. and Gany, A., “Burning and Flameholding Characteristics of a Miniature Solid Fuel Ramjet Combustor,” J. Propulsion Power, 7, pp. 357–363 (1991).CrossRefGoogle Scholar
8Liou, T. M., Lien, W. Y. and Hwang, P. W., “Flammability Limits and Probability Density Functions in Simulated Solid-Fuel Ramjet Combustors,” J. Propulsion Power, 13, pp. 643–650 (1997).CrossRefGoogle Scholar
9Menon, S. and Jou, W. H., “Large-Eddy Simulations of Combustion Instability in an Axisymmetric Ramjet Combustor,” Combust. Sci. Technol, 75, pp. 53–72 (1991).CrossRefGoogle Scholar
10Fureby, C. and Löfström, C., “Large-Eddy Simulations of Bluff Body Stabilized Flames,” 25th Smp. Combustion, pp. 1257–1264 (1994).Google Scholar
11Fureby, C. and Möller, S. I., “Large-Eddy Simulation of Reacting Flows Applied to Bluff Body Stabilized Flames,” AIAA J., 33, pp. 2339–2347 (1995).CrossRefGoogle Scholar
12Takahashi, S., Wakai, K., Tomioka, S., Tsue, M. and Kono, M., “Effects of Combustion on Flowfield in a Model Scramjet Combustor,” 28th Symp. Combustion, pp. 2143–2150 (1998).CrossRefGoogle Scholar
13Thibaut, D. and Candel, S., “Numerical Study of Unsteady Turbulent Premixed Combustion: Application to Flashback Simulation,” Combust. Flame, 113, pp. 53–65 (1998).CrossRefGoogle Scholar
14Winant, C. D. and Browand, F. K., “Vortex Pairing: the Mechanism of Turbulent Mixing-Layer Growth at Moderate Reynolds Number,” J. Fluid Mech., 63, pp. 237–255 (1974).CrossRefGoogle Scholar
15McMurtry, P. A., Jou, W. H., Riley, J. J. and Metcalfe, R. W., “Direct Numerical Simulations of a Reacting Mixing Layer with Chemical Heat Release,” AIAA J ., 24, pp. 962–970 (1986).CrossRefGoogle Scholar
16Menon, S. and Jou, W. H., “Numerical Simulations of Oscillatory Cold Flows in an Axisymmetric Ramjet Combustor,” J. Propulsion Power , 6, pp. 525–534 (1990).CrossRefGoogle Scholar
17Wang, X. and Fujiwara, T., “Effect of Heat Release on the Behavior of Reacting Mixing Layer,” JSME Int. J., Series II, 35, pp. 624–629 (1992).Google Scholar
18Yoshizawa, A., Encyclopedia of Fluid Mechanics, Cheremisionoff, N.P., ed. (Houston: Gulf Publish Corporation), 6, pp. 1277–1297 (1986).Google Scholar
19Krametz, E. and Schulte, G., “The Influence of Different Fuel/Air Ratios on the Reacting Flow Field Behind a Rearward Facing Step,” 3rd Int. Conference on Laser Anemometry ¾ Advances and Applications (Swanee), p. 29 (1989).Google Scholar
20Smagorinsky, J., “General Circulation Experiments with the Primitive Equations,” Monthly Weather Review, 91, pp. 99–164 (1963).2.3.CO;2>CrossRefGoogle Scholar
21Liou, T. M., Lien, W. Y. and Hwang, P. W., “Transition Characteristics of Flowfield in a Simulated Solid-Rocket Motor,” J. Propulsion Power , 14, pp. 282–289 (1998).CrossRefGoogle Scholar
22Westbrook, C. K. and Dryer, F. C., “Simplified Reaction Mechanism for the Oxidation of Hydrocarbon Fuels in Flames,” Combust. Sci. Technol., 27, pp. 31–43 (1981).CrossRefGoogle Scholar
23Liou, T. M., Lien, W. Y. and Hwang, P. W., “A Modified Godunov's Scheme for Shock Tube Flows and Turbulent Combustion Flows,” 4th National Conference on Combustion Science and Technology (Hsinchu, Taiwan, R.O.C.), pp. 242–247 (1994).Google Scholar
24Tsai, Y. P. and Christiansen, W. H., “Two-Dimensional Numerical Simulation of Shear-Layer Optics,” AIAA J ., 28, pp. 2092–2097 (1990).CrossRefGoogle Scholar
25Longwell, J. P., Frost, E. E. and Weiss, M. A., “Flame Stability in Bluff Body Recirculation Zones,” Industr. Eng. Chem., 45, pp. 1629–1633 (1953).CrossRefGoogle Scholar
26Sutton, G. P., Rocket Propulsion Elements, (New York: John Wiley & Sons), pp. 30–62 (1992).Google Scholar
27Krametz, E. and Schulte, G., “Observation of a Reacting Shear Layer in a Backward-Facing Step Flow,” 4th Int. Symp. on Application of Laser Anemometry to Fluid Mechanics (Lisbon, Portugal), Paper 2.6 (1988).Google Scholar
28Roberds, D. W., McGregor, W. K. and Hartsfield, B. W., “Measurement of Residence Time, Air Entrainment Rate, and Base Pressure in the Near Wake of a Cylindrical Body in Subsonic Flow,” AIAA J ., 27, pp. 1524–1529 (1989).CrossRefGoogle Scholar