Passive scalar interface in a spatially evolving mixing layer (A. Attili and D. Denker)

Quartz nozzle sampling (D. Felsmann)

Dissipation element analysis of a planar diffusion flame (D. Denker)

Turbulent/non-turbulent interface in a temporally evolving jet (D. Denker)

Dissipation elements crossing a flame front (D. Denker and B. Hentschel)

Particle laden flow (E. Varea)

Turbulent flame surface in non-premixed methane jet flame (D. Denker)

DNS of primary break up (M. Bode)

Diffusion flame in a slot Bunsen burner (S. Kruse)

Various quantities in spatially evolving jet diffusion flame (D. Denker)

OH layer in a turbulent wall bounded flame (K. Niemietz)

Terence Lehmann

E-Mail:  t.lehmann(at)itv.rwth-aachen.de

Adresse:
              Institut für Technische Verbrennung
              RWTH Aachen University
              Templergraben 64
              52056 Aachen

Telefon: +49 (0)241 80-94663
Telefax: +49 (0)241 80-92923

Büro:  224 (2. Etage)

Arbeitsgebiete

Forschung:

  • Direkte numerische Simmulationen der Ammoniak- und Wasserstoffverbrennung
  • Thermo-diffusive Instabilitäten

Lehre:

  • Chemische Energieumwandlung 1

Publikationen

2025

  • T. Lehmann, L. Berger, T. L. Howarth, M. Gauding, S. Girhe, B. B. Dally and H. Pitsch. Comprehensive linear stability analysis for intrinsic instabilities in premixed ammonia/hydrogen/air flames. Combustion and Flame, vol. 273, page 113927, 2025. [DOI]

2024

  • S. Girhe, A. Snackers, T. Lehmann, R. Langer, F. Loffredo, R. Glaznev, J. Beeckmann and H. Pitsch. Ammonia and ammonia/hydrogen combustion: Comprehensive quantitative assessment of kinetic models and examination of critical parameters. Combustion and Flame, vol. 267, page 113560, 2024. [DOI]
  • M. Gauding, T. Howarth, L. Berger, T. Lehmann and H. Pitsch. Effects of Reynolds number on thermodiffusive flame instabilities: Direct numerical simulations of turbulent hydrogen flames. The 19th International Conference on Numerical Combustion, 2024.
  • T. Lehmann, N. Dimidziev, T. L. Howarth, M. Gauding and H. Pitsch. Effects of Intrinsic Flame Instabilities on NOx Formation in Laminar Premixed Ammonia/Hydrogen/Air Flames. Work-in-Progress Poster, 40th International Symposium on Combustion, 2024.
  • S. Nerzak, K. Niemietz, M. Vivenzo, L. Berger, T. Lehmann, M. Gauding and H. Pitsch. Numerical Analysis of Thermodiffusive Instabilities in Hydrogen Flames with LES in Jet Burner Application. In 19th International Conference on Numerical Combustion, 2024.
  • T. Howarth, T. Lehmann, M. Gauding and H. Pitsch. Role of enthalpy transport in premixed hydrogen flames. Premixed Turbulent Flame Workshop, 2024.

2023

  • S. Girhe, A. Snackers, T. Lehmann, F. Loffredo, R. Glaznev, J. Beeckmann and H. Pitsch. Ammonia/Hydrogen Combustion: Comprehensive Quantitative Evaluation of Chemical Kinetic Mechanisms and Improvement. Proceedings of the 11th European Combustion Meeting, 2023.
  • T. Lehmann, M. Gauding, L. Berger, A. Attili and H. Pitsch. Intrinsic Flame Instabilities in Ammonia/Hydrogen Flames: Analysis of Temperature and Progress Variable. 2nd Symposium on Ammonia Energy, Orléans July 11, 2023.
  • T. Lehmann, L. Berger, M. Gauding, S. Girhe, F. Creta, B. Dally and H. Pitsch. Intrinsic Flame Instabilities in Laminar Ammonia/Hydrogen Flames: Effects of Hydrogen-Fraction and Equivalence Ratio. In Proceedings of the 11th European Combustion Meeting, 2023.
  • R. Glaznev, R. Hesse, C. Schwenzer, S. Girhe, T. Lehmann, S. Eckart, H. Pitsch and J. Beeckmann. Analysis of Radiation and Buoyancy Induced Uncertainty of Ammonia Flames. Proceedings of the 11th European Combustion Meeting, 2023.

Offene Stellen/Arbeiten

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