Surface Roughness

Santese, T. and Söndgerath, A. and Soller, S. and Latini B. and Manfletti C. (2024) Experimental and Numerical Investigation of Frictional Behavior and Heat Transfer in 3D Printed Rocket Engine Cooling Channels. 9^th Space Propulsion Conference, May, Glasgow, Scotland.

Santese, T. and Martinez, D. and Sternin, A. and Manfletti C. (2024) Investigation of Sidewall and Reynolds Number Effects in a Ribbed Square Duct. Flow Turbulence and Combustion, Vol. 113, Pages 1-27. https://doi.org/10.1007/s10494-024-00554-2

Liquefied Natural Gases (LNG)

Santese, T. and Shvab, J. and Suslov, D. and Haidn, O. and Slavinskaya, N. (2023) Impact of impurities on liquid methane properties under typical rocket operation conditions. International Journal of Thermofluids, Vol. 18, Page 100343. https://doi.org/10.1016/j.ijft.2023.100343

Water Electrolysis Propulsion

Heizmann, S. and Herbertz, A. and Saryczew, J. and Manfletti, C. (2023) Investigation of a Cathode-Vapour-Feed Electrolyser for a Water Electrolysis Propulsion System. 10th European Conference for Aerospace Sciences 09. – 13. July, Lausanne, Switzerland. https://www.eucass.eu/doi/EUCASS2023-438.pdf  

Intelligent Systems

Dengler, S. and Wagmann, O. and Manfletti, C. (2023) Optimising ConOps of Water Electrolysis Propulsion systems using Deep Q-Learning: A Proof-of-Concept. 10th European Conference for Aerospace Sciences 09. – 13. July, Lausanne, Switzerland. https://www.eucass.eu/doi/EUCASS2023-682.pdf

Manfletti, C. and Guimarães, M. and Soares, C. (2023) AI for Space Traffic Management. Journal of Space Safety Engineering. Vol 10, Issue 4, pp.  495-504. https://doi.org/10.1016/j.jsse.2023.08.007

Vacuum and Laser Ignition

Börner, M. and Manfletti, C. and Deeken, J. and Oschwald, M. (2018) Experimental Study of a Laser Ignited Thruster with a Porous Injector Head. International Journal of Energetic Materials and Chemical Propulsion, Vol 17, Issue 4, pp. 263-286. http://dx.doi.org/10.1615/IntJEnergeticMaterialsChemProp.2019027382

Börner, M. and Manfletti, C. and Hardi, J. and Suslov, D. and Kroupa, G. and Oschwald, M. (2018) Laser Ignition of a Multi-Injector LOX/methane Combustor. CEAS Space Journal, Vol 10, Issue 2, pp. 273-28. https://rd.springer.com/article/10.1007/s12567-018-0196-6

Börner, M. and Manfletti, C. and Kroupa, G. and Oschwald, M. (2017) Repetitive laser ignition by optical breakdown of a LOX/H2 rocket combustion chamber with multi-injector head configuration. CEAS Space Journal, Vol 9, pp. 289-297. https://doi.org/10.1007/s12567-017-0163-7  

Börner, M. and Manfletti, C. and Kroupa, G. and Oschwald, M. (2017) Laser ignition of an experimental combustion chamber with a multi-injector configuration at low pressure conditions. CEAS Space Journal, Vol 9, pp. 299-311. https://doi.org/10.1007/s12567-017-0161-9

Börner, M. and Deeken, J. and Manfletti, C. and Oschwald, M. (2017) Determination of the minimum laser pulse energies for ignition in a subscale rocket combustion chamber. Laser Ignition Conference 2017. https://doi.org/10.1364/LIC.2017.LThA4.2

Manfletti, C. and Börner, M. (2017) Future Space Transportation, Propulsion Systems and Laser Ignition. Laser Ignition Conference 2017. https://doi.org/10.1364/LIC.2017.LFA4.1

Börner, M. and Manfletti, C. and Grebe, A. and Hardi, J. and Stützer, R. and Suslov, D. and Oschwald, M. (2015) Experimental Study of a Laser-Ignited Liquid Cryogenic Rocket Engine. 3rd Laser Ignition Conference (LIC) 2015, 27. - 30. Apr. 2015, Lemont, IL, USA.

Manfletti, C. (2014) Laser Ignition of an Experimental Cryogenic Reaction and Control Thruster: Pre-Ignition Conditions. Journal of Propulsion and Power, ISSN 0748-4658. http://arc.aiaa.org/doi/abs/10.2514/1.B34916

Manfletti, C. (2014) Laser Ignition of an Experimental Cryogenic Reaction and Control Thruster: Ignition Energies. Journal of Propulsion and Power, ISSN 0748-4658. http://arc.aiaa.org/doi/abs/10.2514/1.B35115

Wohlhüter, Zhukov, V, and Manfletti, C. (2014) Numerical Analysis of Laser Ignition and Flame Development in a Subscale Combustion Chamber, Space Propulsion Conference, 19-22 May 2014, Cologne, Germany.

Manfletti, C. and Kroupa, G., (2013) G. Laser ignition of a cryogenic thruster using a miniaturised Nd:YAG laser. Optics Express, Vol. 21, pp. A1126-A1139, ISSN 1094-4087. http://dx.doi.org/10.1364/OE.21.0A1126

Scramjet

Strauss, F. and General, S. and Manfletti, C. and Schlechtriem, S. (2019) Flow Path and Interaction Analysis in a Hydrogen Transpiration Cooled Scramjet Model Combustor. AIAA Propulsion and Energy 2019 Forum, 19-22 August 2019, Indianapolis, US. https://doi.org/10.2514/6.2019-4015

Strauss, F. and General, S. and Manfletti, C. and Schlechtriem, S. (2019) Experimental Flow Path Analysis of a Hydrogen Transpiration Cooled Model Scramjet Combustor, 8th European Conference of Aeronautics and Space Sciences (EUCASS), 1-4 July 2019, Madrid, Spain.

Strauss, F. and General, S. and Manfletti, C. and Schlechtriem, S. (2019) Flow Visualisations with Background-Oriented Schlieren in a Transpiration-Cooled Model Scramjet Combustor. International Journal of Energetic Materials and Chemical Propulsion, Vol 18, Issue 3, pp. 133-155. http://dx.doi.org/10.1615/IntJEnergeticMaterialsChemProp.2019027382

Strauss, F. and General, S. and Manfletti, C. and Schlechtriem, S. (2018) Shock-Boundary Layer Interaction Phenomena in a Hydrogen Transpiration Cooled Supersonic Combustion Ramjet, FAR 2019. International Conference on Flight Vehicles, Aerothermodynamics and Re-Entry Missions & Engineering, 30. Sept. - 03. Oct. 2019, Monopoli, Italy.

Strauss, F. and Witte, J. and General, S. and Manfletti, C. and Schlechtriem, S. (2018) Experiments on Nitrogen and Hydrogen Transpiration Cooling in a Model Scramjet Combustor, 2018 Joint Propulsion Conference, 9-11 July 2018, Cincinnati, Ohio, US. https://doi.org/10.2514/6.2018-4932

Strauss, F. and Witte, J. and Weisswange, M. and Manfletti, C. and Schlechtriem, S. (2017) Experiments on Shock-Boundary Layer Interaction and Cooling Efficiency in a Transpiration Cooled Model Scramjet, 53rd Joint Propulsion Conference, 10-12 July 2017, Atlanta, US. https://doi.org/10.2514/6.2017-4833

Strauss, F. and Wößner, M. and Weisswange, M. and Manfletti, C. and Schlechtriem, S. (2017) Experiments on Flow Interaction in a Transpiration Cooled Model Scramjet. 7th European Conference for Aeronautics and Space Sciences (EUCASS), 03-06 June 2017, Milan, Italy.

Strauss, F. and Manfletti, C. and Schlechtriem, S. (2015) Aufbau für experimentelle Untersuchungen transpirativ gekühlter Staustrahlantriebe. 64. Deutscher Luft- und Raumfahrtkongress (DLRK), 22.-24. Sept. 2015, Rostock, Germany.

Injection and Fluid Flow Phenomena

Bombardieri, C. and Traudt, T. and Manfletti, C. (2019) Experimental study of water hammer pressure surge.  Progress in Propulsion Physics, Vol 11, pp. 555-570. https://doi.org/10.1051/eucass/201911555

Traudt, T.  and Bombardieri, C. and Manfletti, C. (2016) Influences on Water Hammer Wave Shape: and Experimental Study.  CEAS Space Journal, Vol 8, pp. 215-227. https://doi.org/10.1007/s12567-016-0115-7

Traudt, T.  and Bombardieri, C. and Schleicher, E. and Manfletti, C. (2016) Investigation of Pressure Hammer with Wire Mesh Sensor and High Speed Imaging Techniques, Space Propulsion Conference, 2-6 May 2016, Rome, Italy.

Bombardieri, C. and Traudt, T. and Manfletti, C. (2016) Implementation and Evaluation of an Unsteady Friction Model in the Numerical Simulation of Water Hammer.  Space Propulsion, 2-6 May 2016, Rome, Italy.

Bombardieri, C. and Manfletti, C. (2015) Influence of wall material on nucleate pool boiling of liquid nitrogen.  International Journal of Heat and Mass Transfer, Vol 94, pp. 1-8. https://doi.org/10.1016/j.ijheatmasstransfer.2015.10.049

Bombardieri, C. and Traudt, T. and Manfletti, C. (2015) Effect of the dissolved pressurizing gas on the pressure surge during the filling process of spacecraft feedlines. 12th International Conference Pressure Surges 2015, 18. - 20. Nov. 2015, Dublin, Ireland. [Best Paper Award]

Traudt, T. and Bombardieri, C. and Manfletti, C. (2015) High Speed Imaging of Water Hammer with Column Separation. 12th International Conference Pressure Surges 2015, 18. - 20. Nov. 2015, Dublin, Ireland. [Best Paper Award]

Lamanna, G. and Kamoun, H. and Weigand, B. and Manfletti, C. and Rees, A. and Sender, J. and Oschwald, M. and Steelant, J. (2015) Flashing behavior of rocket engine propellants, Atomization and Sprays, Vol. 25, pp. 837–856. https://doi.org/10.1615/AtomizSpr.2015010398

Hydrocarbon combustion and laser diagnostics

Fabelinsky, V. I., Smirnov, V. V., Stel'makh, O. M., Vereschagin, K. A., Clauss, W., Manfletti, C., Sender, J., Oschwald, M (2010) CARS temperature measurement in a LOX/CH4 spray flame. Journal of Raman Spectroscopy, 41, pp. 890–896, 2010.

Manfletti, C., Yamashita, K., Fukmoto, K., Egami, M., et al. (2007) Implementation of Two-Colour Laser Induced Incandescence Measurements in the Investigation of the Effect of Microwaves on Soot Formation and Combustion. In: Proceedings of the 45th Symposium (Japanese) on Combustion, September 2007, Japan

Launcher and Engine Systems

Hurlbert, E. and Ueno, H. and Alexander, L. and Klem, M. and Daversa, E. and Rualt, J. and Manfletti, C. and Caruana, J. and Asakawa, H. and Whitley, R. (2016) International Space Exploration Coordination Group Assessment of Technology Gaps for LOx/Methane Propulsion Systems for the Global Exploration Roadmap. AIAA Space 2016, 13 - 16 Sep. 2016, Long Beach, CA, USA.

Herbertz, A. and Fromm, C. and Manfletti, C. (2014) Performance Analysis of Low-Complexity Upper Stage Demonstrator Engines. 50th Joint Propulsion Conference, 28. - 30. Jul. 2014, Cleveland, OH, USA.

Sippel, M., Manfletti, C., Burkhart, H. (2006) Long-Term/Strategic Scenario for Reusable Booster Stages. Acta Astronautica, Volume 58, Issue 4.

Safety and Security

Manfletti, C. and Wörner, J. (2018) Space Safety for Europe: A proposal for the protection of our planet, of humanity, and assets in space and on Earth from dangers originating in space.  7th IASS Conference on Space Systems as Critical Infrastructures, 2018, 2-3 August, Mamaia, Romania.

Mobility

Manfletti, C. (2017) The future of transport depends on space and in space there lies the future of transport, The future of transport, July 2017. https://www.raconteur.net/future-transport-2017

Other

Manfletti, C. and Börner, M. and Kroupa, G. and Soller, S. (2016) Ins All muss man erst mal kommen. DLR Magazin. https://elib.dlr.de/107661/1/2016%20B%C3%B6rner%20DLR%20Magazin.pdf