Forschung:

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

Lehre:

• Chemische Energieumwandlung II
• Technische Verbrennung II

• 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.
• Metin Korkmaz, Rene Zweigel, Kai Niemietz, Bernhard Jochim, Dirk Abel and Heinz Pitsch. Assessment of Different Included Spray Cone Angles and Injection Strategies for PCCI Diesel Engine Combustion. SAE Technical Paper 2017-01-0717, 2017. [DOI]
• Yona Frekers, Kai Niemietz and Reinhold 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.