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)

Kai Niemietz, M.Sc.

E-Mail: k.niemietz(at)itv.rwth-aachen.de

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

Telefon: +49 (0)241 80-94619
Telefax: +49 (0)241 80-92923

Büro:  217 (2. Etage)


Arbeitsgebiete

Forschung:

  • Simulation, Analyse und Modellierung turbulenter Verbrennung
  • Flame-Wall Interaction

Lehre:

  • Chemische Energieumwandlung II
  • Technische Verbrennung II

Publikationen

  • K. Niemietz, M. Gauding and H. Pitsch. Modeling Carbon Monoxide in Premixed Turbulent Jet Flames with Flame-Wall Interaction. Proceedings of the 12th European Combustion Meeting, April 7-10, Edinburgh (Scotland), UK, 2025.
  • Kai Niemietz, Dominik Denker, Michael Gauding and Heinz Pitsch. Prediction of non-premixed combustion regimes in direct injection compression ignition engines. Proceedings of the Combustion Institute, vol. 40 no. 1, page 105442, 2024. [DOI]
  • K. Niemietz, C. Scherding, W. Gemassmer, T. Sayadi and H. Pitsch. Modeling of Turbulent Reactive Flows Using a Self-Learning Reduced Order Model. In 19th International Conference on Numerical 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.
  • K. Niemietz, G. Scialabba and H. Pitsch. Prediction of Gas Turbine Emissions II. The FVV Transfer + Networking Event, Würzburg, 2024.
  • Gandolfo Scialabba and Kai Niemietz. Prediction of Gas Turbine Emissions. The FVV Transfer + Networking Event, Würzburg March 2023, 2023.
  • Kai Niemietz, Lukas Berger, Michael Huth, Antonio Attili and Heinz Pitsch. Direct numerical simulation of flame-wall interaction at gas turbine relevant conditions. Proceedings of the Combustion Institute, vol. 39 no. 2, pages 2209-2218, 2023. [DOI]
  • K. Niemietz and H. Pitsch. Development of CO Models for LES of Premixed Turbulent Jet Flames with Flame-Wall Interaction. 3rd International Workshop on Near-Wall Reactive Flows, 2022.
  • K. Niemietz, A. Attili and H. Pitsch. A-priori Analysis of CO Modeling Approaches for Premixed Turbulent Jet Flames with Flame-Wall Interaction. 18th International Conference on Numerical Combustion, 8-11 May 2022, San Diego, USA, 2022.
  • K. Niemietz, D. Denker, K. Kleinheinz, A. Attili and H. Pitsch. The Influence of Flame-Wall Interaction on CO Emissions in Gas Turbine Combustors: A DNS Study. In Proceedings of the 10th European Combustion Meeting, April 14-15, Naples (Italy) / Online, 2021.
  • D. Denker, A. Attili, M. Gauding, K. Niemietz, M. Bode and H. Pitsch. A new modeling approach for mixture fraction statistics based on dissipation elements. Proceedings of the Combustion Institute, vol. 38, pages 2681-2689, 2021. [DOI]
  • D. Denker, K. Niemietz, A. Attili, M. Korkmaz and H. Pitsch. Prediction of non-premixed combustion regimes in a DI diesel engine in various operation points. In Proceedings of the 9th European Combustion Meeting, April 14-17, Lisbon, Portugal, 2019.
  • Y. Frekers, K. Niemietz and R. Kneer. Analyse von Wärmetransportvorgängen an Maschinenkontakten unter Berücksichtigung fluider Zwischenmedien. In Thermo-energetische Gestaltung von Werkzeugmaschinen : Modellierung und Simulation : Tagungsband - 5. Kolloquium zum SFB/TR 96, TU Chemnitz, 22. - 23.03, pages 107-122, Dresden, 2017.

Offene Stellen/Arbeiten

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