Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
International Journal for Multiscale Computational Engineering
Impact-faktor: 1.016 5-jähriger Impact-Faktor: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Druckformat: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v7.i6.20
pages 487-508

Elimination of Fast Modes in the Coupled Process of Chemistry and Diffusion in Turbulent Nonpremixed Flames: An Application of the REDIM Approach

Dirk J.E.M. Roekaerts
Department Process and Energy, Delft University of Technology, Leeghwaterstraat 44, 2628 CA Delft ; Department of Multi-Scale Physics, Delft University of Technology, Leeghwaterstraat 39, 2628 CB Delft
Bart Merci
Department of Mechanics of Flow, Heat and Combustion, Ghent University, St-Pietersnieuwstraat 41, 9000 Gent; and Postdoctoral Fellow of the Fund of Scientific Research - Flanders,Belgium
Bertrand Naud
Modeling and Numerical Simulation Group, Energy Dept., Ciemat, Avda. Complutense 22, 28040 Madrid, Spain
Ulrich Maas
Institute for Technical Thermodynamics, Karlsruhe University (TH), Kaiserstraβe 12, 76131 Karlsruhe, Germany


A computational study has been made of bluff-body stabilized turbulent jet flames with strong turbulence-chemistry interaction (Sydney Flames HM1 and HM3). The wide range of scales in the problem is described using a combination of a standard second moment turbulence closure, a joint scalar transported probability density function (PDF) method and the Reaction-Diffusion Manifold (REDIM) technique. The latter provides a reduction of a detailed chemistry mechanism, taking into account effects of laminar diffusion. In an a priori test it is evaluated to what extent the single shot experimental data are located on the reaction-diffusion manifold. Next, computed spatial profiles of mean and variance of independent and dependent scalar variables and profiles of conditional averages and variances (conditional on mixture fraction) are compared to the experimental results. The quality of these predictions is interpreted in relation to the a priori analysis. In general, simulations using the REDIM approach for reduction of detailed C2-chemistry confirm earlier findings for micro-mixing model behavior, obtained with a skeletal C1-mechanism. Nevertheless it is concluded that the experiments show important features that are not described by the currently used REDIM.


  1. Ren, Z., and Pope, S. B., The Use of Slow Manifolds in Reactive Flows. DOI: 10.1016/j.combustflame.2006.09.002

  2. Bykov, V., and Maas, U., The Extension of the ILDM Concept to Reaction-Diffusion Manifolds. DOI: 10.1080/13647830701242531

  3. Pope, S. B., PDF Methods for Turbulent Reactive Flows. DOI: 10.1016/0360-1285(85)90002-4

  4. Merci, B., Naud, B., Roekaerts, D., and Mass, U., Joint Scalar versus Joint Velocity-Scalar PDF Simulations of Bluff-Body Stabilized Flames with REDIM. DOI: 10.1007/s10494-008-9162-2

  5. Dally, B. B., Fletcher, D. F., and Masri, A. R., Flow and Mixing Fields of Turbulent Bluff Body Jets and Flames. DOI: 10.1088/1364-7830/2/2/006

  6. Dally, B. B., Masri, A. R., Barlow, R. S., and Fiechtner, G. J., Instantaneous and Mean Compositional Structure of Bluff-Body Stabilised Nonpremixed Flames. DOI: 10.1016/S0010-2180(97)00280-0

  7. Masri, A. R., Thermofluids Research Group.

  8. Warnatz, J., Maas, U., and Dibble, R. W., Combustion Physical and Chemical Fundamentals, Modeling and Simulation, Experiments, Pollutant Formation.

  9. Merci, B., Roekaerts, D., Naud, B., and Pope, S. B., Comparative Study of Micromixing Models in Transported Scalar PDF Simulations of Turbulent Non Premixed Bluff Body Flames. DOI: 10.1016/j.combustflame.2006.04.010

  10. Gkagkas, K., Lindstedt, R. P., and Kuan, T. S., Transported PDF Modelling of a High Velocity Bluff-Body Stabilised Flame (HM2) Using Detailed Chemistry. DOI: 10.1007/s10494-008-9164-0

  11. Lindstedt, R. P., Ozarovsky, H. C., Barlow, R. S., and Karpetis, A. N., Progression of Localised Extinction in High Reynolds Turbulent Jet Flames. DOI: 10.1016/j.proci.2006.08.099

  12. Sreedhara, S., and Huh, K. Y., Modeling of Turbulent, Two-Dimensional Nonpremixed CH4/H2 Flame over a Bluffbody Using Firstand Second-Order Elliptic Conditional Moment Closures.

  13. Li, G., Naud, B., and Roekaerts, D., Numerical Investigation of a Bluff-Body Stabilized Nonpremixed Flame with Differential Reynolds Stress Models. DOI: 10.1023/B:APPL.0000004931.07292.55

  14. Janicka, J., Kolbe, W., and Kollmann, W., Closure of the Transport Equation for the Probability Density Function of Turbulent Scalar Fields.

  15. Subramaniam, S., and Pope, S. B., A Mixing Model for Turbulent Reactive Flows Based on Euclidean Minimum Spanning Trees. DOI: 10.1016/S0010-2180(98)00023-6

  16. Naud, B., Jiménez, C., and Roekaerts, D., A Consistent Hybrid PDF Method: Implementation Details and Application to the Simulation of a Bluff-Body Stabilised Flame. DOI: 10.1504/PCFD.2006.009492

  17. Pope, S. B., Turbulent Flows.

  18. Muradoglu, M., Pope, S. B., and Caughey, D. A., The Hybrid Method for the PDF Equations of Turbulent Reactive Flows: Consistency Conditions and Correction Algorithms. DOI: 10.1006/jcph.2001.6861

  19. Jenny, P., Pope, S. B., Muradoglu, M., and Caughey, D. A., A Hybrid Algorithm for the Joint PDF Equations of Turbulent Reactive Flows. DOI: 10.1006/jcph.2000.6646

  20. Muradoglu, M., and Pope, S. B., Local Time-Stepping Algorithm for Solving Probability Density Function Turbulence Model Equations. DOI: 10.2514/2.1880

  21. Ren, Z., and Pope, S. B., PDF Transport-Chemistry Coupling in the Reduced Description of Reactive Flows. DOI: 10.1080/13647830701200000

  22. Nafe, J., and Maas, U., A General Algorithm for Improving ILDMs. DOI: 10.1088/1364-7830/6/4/308

  23. Bykov, V., and Maas, U., Problem Adapted Reduced Models Based on Reaction-Diffusion Manifolds (ReDiMs). DOI: 10.1016/j.proci.2008.06.186

  24. Bilger, R. W., Starner, S. H., and Kee, R. J., On Reduced Mechanisms for Methane-Air Combustion in Nonpremixed Flames. DOI: 10.1016/0010-2180(90)90122-8

  25. Vervisch, L., Domingo, P., Rullaud, M., and Hauguel, R., Three Facets of Turbulent Combustion Modeling: DNS of Premixed VFlame, LES of Lifted Jet-Flame, RANS of Non-Premixed Jet-Flame. DOI: 10.1088/1468-5248/5/1/004

  26. Barlow, R. S., International Workshop on Measurement and Computation of Turbulent Nonpremixed Flames.