Christian-Stemmer_01

Prof. Dr.-Ing. habil. Christian Stemmer

Professor

Doctorate

Email: christian.stemmer@aer.mw.tum.de

Research Interests

  • Investigations on the laminar-turbulent breakdown in hypersonic boundary layers with chemical and thermal nonequilibrium
  • Investigations on the wake of isolated roughness elements in hypersonic boundary layers with chemical and thermal nonequilibrium
  • Direct Numerical Simulations (DNS) of a generic ramp configuration at supersonic speeds
  • Re-entry Aerothermodynamics
  • Uncertainty analysis of shock-droplet interactions

Selected Publications

1. C.Stemmer, N.A.Adams, R.Radespiel, T.Sattelmayer, W.Schröder, B.Weigand: Annual Report 2012 of the SFBTRR40 “Technological technologies for the Development of future space-transportation systems under high thermal and mechanical loads”, 2012.

2. C.Stemmer, N.A.Adams, S.Hein, W.Schröder, M.Meinke, H.Olivier, R.Radespiel, D.Heitmann, Experimental and numerical investigation of hypersonic instabilities in a boundary layer on a capsule with and without high-temperature gas effects. RTO-AVT 200 Specialists Meeting on “Hypersonic Laminar-Turbulent Transition”, April 16-19, 2012, San Diego, USA.

3. C.Stemmer, Untersuchungen zur Instabiliät hypersonischer Grenzschichten unter Berücksichtigung von Hochtemperatureffekten. http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:91-diss-20110711-1098723-1-5 . Habilitationsschrift TU München, 2012.

4. C. Stemmer, N. A. Adams, R. Radespiel, T. Sattelmayer, W. Schröder, B. Weigand: Summer Programm 2011, Proceedings of the 2011 summer program within the SFBTRR40 at Munich from Aug 1st-26th. 2011.

5. N. A. Adams, C. Stemmer, R. Radespiel, T. Sattelmayer, W. Schröder, B. Weigand: SFB-TRANSREGIO 40: Technologische Grundlagen für den Entwurf thermisch und mechanisch hochbelasteter Komponenten zukünftiger Raumtransportsysteme – Motivation und Struktur Deutscher Luft und Raumfahrtkongress 2011, Bremen, 26.-28.9.2011.

6. M.Birrer, C.Stemmer, N.A.Adams, ; Thermal and Chemical Non-Equilibrium Effects in the Wake of a Boundary-Layer Sized Object in Hypersonic Flows; 7th ESA symposium on Aerothermodynamics for Space Vehicles ’11; Brugge, Belgium 2011.

7. S.Ghosh, R.Friedrich, M.Pfitzner, C.Stemmer, B.Cuenot, M.El Hafi,; Effects of radiative heat transfer on the structure of turbulent supersonic channel flow; J. of Fluid Mech, doi:10.1017/jfm.2011.92, 2011.

8. C.Stemmer, M.Birrer, N.A.Adams, Non-Equilibrium Efects in the Wake of a Boundary-Layer Sized Obstacle in Hypersonic Boundary-Layer Flows. EFMC 8, 13.-16.~Sept. 2010, Bad Reichenhall, Germany.

9. K. K. So, T. Chantrasmi, X. Y. Hu, J. A. S. Witteveen, C. Stemmer, G. Iaccarino and N. A. Adams, Uncertainty analysis for shock-bubble interaction, Proceedings of the 2010 Summer Program, Center for Turbulence Research, Stanford University, 2010.

10. C. Stemmer, Instability of high Mach number flows in the presence of high-temperature gas effects. Proceedings of the 7th IUTAM Symposiumon Laminar-Turbulent Transition, in Stockholm, Sweden, June 23-26 2009, Springer Verlag.

11. C. Stemmer, Z. Chen, E. Lauer, S. Hickel, N. Adams, Wall modelling within the implicit LES framework in adverse pressure-gradient boundary layers. Contribution to the final workshop of the EU-FP7 project WALLTURB in Lille, France, April 21-23, 2009.

12. C. Stemmer, Instability investigations in non-equilibrium hypersonic reacting flat-plate boundary-layer flow with DNS, Proceedings of the Fifth European Symposium on Aerothermodynamics for Space Vehicles, ESA SP-659, Versailles, France, 3.-6. November 2008. ISBN 978-92-9221-223-0

13. M. Birrer, C. Stemmer, Chemical Non-Equilibrium Behind a Surface-Mounted Obstacle in Hypersonic Flows. Proceedings of the 16th STAB-Symposium, RWTH Aachen, Nov. 3./4. 2008.

14. ZhenLi Chen, Antoine Devesa, Stefan Hickel, Christian Stemmer and Nikolaus A. Adams, A Wall Model Based on Simplified Thin Boundary Layer Equations for Implicit Large Eddy Simulation of Turbulent Channel Flow. Proceedings of the 16th STAB-Symposium, RWTH Aachen, Nov. 3./4. 2008.

15. M. Birrer, C. Stemmer, G. Groskopf, M. Kloker, Chemical Nonequilibium Effects in the Wake of a Boundary-Layer Sized Object in Hypersonic Flows. Proceedings of the 2008 Summer Program, Center for Turbulence Research, Stanford University, 2008.

16. T. Indinger, C. Stemmer, Large Scale CFD for Complex flows. High Performance Computing in Science and Engineering, Garching 2007 Transaction of the Third Joint HLRB and KONWIHR Result and Reviewing Workshop, December 3-4, 2007, Technical University of Munich, Garching, Germany, pp. 251-260, 2008.

17. C. Stemmer, Flat-Plate Flow at Mach 20, ERCOFTAC Bulletin 74, Sept. 2007, pp.61-63, 2007.

18. C. Stemmer, N.A. Adams, Transition investigations on a M=5 ramp, Fifth Symposium on Turbulence and Shear Flow Phenomena, Aug. 2007, Vol. II, pp. 843-847, 2007.

19. C. Stemmer, Hypersonic transition investigations in a flat-plate boundary-layer flow at Ma=20. Book of Abstract of the 6th ERCOFTAC SIG33 Workshop “Laminar-Turbulent Transition Mechanisms, Prediction and Control” in Kleinwalsertal, Austria, June 17-20, 2007.

20. C. Stemmer, Supersonic and hypersonic boundary layer flows. Proceedings of the conference on Turbulence and Interactions 2006, Porquerolles, France, 2006.

21. C. Stemmer, Influence of non-equilibrium on disturbance waves passing through a planar shock. Proceedings of the 2006 Summer Program , Center for Turbulence Research, Stanford University, 2006.

22. C. Stemmer und N.A. Adams, Instabilities in hypersonic boundary layers under the influence of high-temperature gas effects. In: High Performance Computing in Science and Engineering ’05. Transactions of the High Performance Computing Center, Stuttgart (HLRS), W.E. Nagel, W. Jäger, M. Resch (Hrsg.), Springer Verlag, Berlin, pp. 118-128, 2005.

23. C. Stemmer, Hypersonic transition investigations in a flat-plate boundary layer-flow at M=20, AIAA-paper 2005-5136, 2005.

24. C. Stemmer, Transition investigations on hypersonic flat-plate boundary layers flows with chemical and thermal non-equilibrium, In: Laminar-turbulent Transition. IUTAM-Symposium, Dec 13-18, Bangalore, India, Springer Verlag, Berlin, Heidelberg, pp. 363-368, 2004.

25. C. Stemmer, Hypersonic transition in flat-plate boundary layers with chemical and thermal non-equilibrium, Proceedings of the Fifth European Symposium on Aerothermodynamics for Space Vehicles, ESA SP-563, Köln, 8.-11. November, pp. 317-324, 2004.

26. C. Stemmer und N.A. Adams, Investigation of hypersonic flat-plate boundary-layer transition by Direct Numerical Simulation. High Performance Computing in Science and Engineering ’04. Transactions of the High Performance Computing Center, Stuttgart (HLRS), E. Krause, W. Jäger, M. Resch (Hrsg.), Springer Verlag, Berlin, pp. 155-162, 2004.

27. C. Stemmer und N.A. Adams, Investigation of supersonic boundary layers by DNS. invited presentation at ECCOMAS 2004. Proceedings, Vol. II, 2004.

28. C. Stemmer, Investigation of high-speed boundary-layer transition by DNS. In: PAMM 2004, 4 (1), 470-471 (presented at the GAMM 2004 in Dresden, March 2004).

29. C. Stemmer, Transition in hypersonic flows including high-temperature gas effects. In: Annual Research Briefs – 2003, 475-479, Center for Turbulence Research, Stanford University, USA, December 2003.

30. M. Kloker and C. Stemmer, Three-dimensional steady disturbance modes in the Blasius boundary layer – a DNS study. In Notes on Numerical Fluid Mechanics Vol. 86, 91-110, Springer Verlag, Berlin, Heidelberg, 2003.

31. C. Stemmer, Hypersonic transition in a flat-plate boundary layer. In Annual Research Briefs – 2002, 389-396, Center for Turbulence Research, Stanford University, USA, December 2002.

32. C. Stemmer, Hypersonic transition in a flat-plate boundary layer. Bull. Am. Phys. Soc.Vol. 47, No. 10, 55th Annual Meeting of the APS DFD Dallas, Texas, November 24-26, 2002.

33. C. Stemmer and N. N. Mansour, DNS of transition in hypersonic boundary-layer flows including high-temperature gas effects. In Annual Research Briefs – 2001, 143-150, Center for Turbulence Research, Stanford University, USA, December 2001.

34. C. Stemmer, Direct Numerical Simulation of Harmonic Point Source Disturbances in an Airfoil Boundary Layer with Adverse Pressure Gradient. Dissertation, Universität Stuttgart, Shaker Verlag , ISBN 3-8265-8862-2, 2001.

35. W. Nitsche, J. Suttan, S. Becker, P. Erb, M. Kloker, C. Stemmer, Experimental and numerical investigations of controlled transition in low-speed free flight. Aerospace Science and Technology Vol. 5,4 (2001), pp. 245-255,

36. W. Nitsche, J. Suttan, S. Becker, P. Erb, M. Kloker, C. Stemmer, Experimental and numerical investigations of controlled transition in Point Source Disturbance in an Airfoil Boundary Layer. AIAA Journal, Vol. 38,8, pp. 1369-1376, Aug. 2000.

37. C. Stemmer, M. Kloker, S. Wagner, Navier-Stokes Simulation of a Harmonic Point Source Disturbance in an Airfoil Boundary Layer. AIAA Journal, Vol. 38,8, pp. 1369-1376, Aug. 2000.

38. C. Stemmer, M. Kloker, Later stages of transition of an airfoil boundary layer flow excited by a harmonic point source. Proc. of the IUTAM-Symposium on Laminar-Turbulent Transition, Sedona, AZ, USA 13.-17. Sept. 1999 H. Fasel, W. Saric (eds.), pp. 499-504, Springer Verlag, Berlin, Heidelberg, 2000.

39. C. Stemmer, M. Kloker, S. Wagner, DNS of harmonic point source disturbances in an airfoil boundary layer flow. AIAA 98-2436, presented on the 29th AIAA Fluid Dynamics Conference, June 15-18, 1998, Albuquerque, New Mexico, USA.

ADMISSIONS OPEN, APPLY NOW

Notify Me

© 2016 Technische Universität München Asia
German Institute of Science & Technology - TUM Asia Pte Ltd
CPE Reg. No. 200105229R | Registration Period 13.06.11 to 12.06.2017

 
Admissions Open | APPLY NOW