apl. Prof. Dr.-Ing. habil. Christian Stemmer


Picture of Christian Stemmer

PD Dr.-Ing. habil. Christian Stemmer

Curriculum Vitae


  • since October 2016, elected member of the mechanical engineering department council

  • Sept. 2012: appointment as Adjunct Teaching Professor in the area of Aerodynamics at the TU München
  • March 2012: Habilitation at the Departement of Mechanical Engineering at the TU München
  • since 1. Juli 2008: General Manager of the DFG SFB TRR40 collaborative research center funded by the German Research Foundation
  • since Dez. 2006: Akademischer Oberrat at the Lehrstuhl für Aerodynamik, TU München
  • Sept. 2005–Nov. 2006: research associate at the Lehrstuhl für Aerodynamik, TU München
  • Sept. 2003–Sept. 2005: research associate at the Institut für Strömungsmechanik, TU Dresden
  • 2001–2003: Research Fellowship at the Center for Turbulence Research, NASA Ames Research Center und Stanford University, Stanford, USA
  • 1995–2001: Doctoral degree (Dr.-Ing.) at the Institut für Aerodynamik und Gasdynamik (IAG), Universität Stuttgart
  • 1995: Dipl.-Ing. Luft- und Raumfahrttechnik, Universität Stuttgart

Research Focus


  • Numerical investigations on high-temperature effects on hypersonic transitional flows (IGSSE project in collaboration with the university of Queensland, Brisbane, Australia

  • 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
  • Uncertainty analysis of shock-droplet interactions - Project 3-1 with IGSSE (completed)

Courses

see  TUM Online

 

 

Publications

2019

Journal Articles

  • Di Giovanni, A.; Stemmer, C.: Roughness-induced Boundary-layer Transition on a Hypersonic Capsule-like Forebody including Nonequilibrium. Journal of Spacecraft and Rockets , 2019 more… BibTeX
  • Di Giovanni, A.; Stemmer, C.: Roughness-Induced Crossflow-Type Instabilities in a Hypersonic Capsule Boundary Layer Including Nonequilibrium. Journal of Spacecraft and Rockets, 2019 more… BibTeX Full text ( DOI )
  • Hein, Stefan; Theiss, Alexander; Di Giovanni, Antonio; Stemmer, Christian; Schilden, Thomas; Schröder, Wolfgang; Paredes, Pedro; Choudhari, Meelan M.; Li, Fei; Reshotko, Eli: Numerical Investigation of Roughness Effects on Transition on Spherical Capsules. Journal of Spacecraft and Rockets 56 (2), 2019, 388-404 more… BibTeX Full text ( DOI )

Conference Papers / Poster

  • R. Olmeda, C. Stemmer: Wall Heat Flux Analysis of a Film-Cooled Single-Element Combustion Chamber with Large-Eddy Simulations. 32nd International Symposium on Shock Waves ISSW-32, 2019 more… BibTeX

2018

Journal Articles

  • Di Giovanni, A.; Stemmer, C.: Cross-flow-type breakdown induced by distributed roughness in the boundary layer of a hypersonic capsule configuration. Journal of Fluid Mechanics (Vol. 856), 2018, pp. 470-503 more… BibTeX Full text ( DOI )
  • Hein, S.; Theiss, A.; Di Giovanni, A.; Stemmer, C.; Schilden, T.; Schröder, W.; Paredes, P.; Choudhari, M.M.; Li, F.; Reshotko, E.: Numerical Investigation of Roughness Effects on Transition on Spherical Capsules. Journal of Spacecraft and Rockets, 2018 more… BibTeX Full text ( DOI )

Conference Papers

  • Di Giovanni, A.; Stemmer, C.: Direct Numerical Simulation of roughness-induced transition in the boundary layer of a hypersonic spherical forebody under considertation of high-temperature gas effects. Fluid Dynamics Conference, AIAA AVIATION Forum, 2018 more… BibTeX Full text ( DOI )
  • Haidn, O.; Adams, N.; Radespiel, R.; Schröder, W.; Stemmer, C.; Sattelmayer, T.; Weigand, B.: Fundamental Technologies for the Development of Future Space Transport System Components under High Thermal and Mechanical Loads. AIAA Propulsion and Energy Forum , 2018 more… BibTeX Full text ( DOI )
  • Hein, S.J.; Theiss, A.; Di Giovanni, A.; Stemmer, C.; Schilden, T.; Schroeder, W.; Paredes, P. Choudhari, M.; Li, F.; Reshotko, E.: Numerical Investigation of Roughness Effects on Transition on Spherical Capsules. AIAA Aerospace Sciences Meeting, AIAA SciTech Forum, (AIAA 2018-0058) , 2018 more… BibTeX Full text ( DOI )
  • Stemmer, C.; Di Giovanni, A.: Roughness-induced instabilities leading to transition in a capsule boundary-layer under re-entry conditions. HISST (International Conference on High-Speed Vehicle Science Technology) [Moscow, 2018], 2018 more… BibTeX
  • Theiss, Alexander; Hein, Stefan; Di Giovanni, Antonio; Stemmer, Christian: Optimal transient growth behind distributed roughness elements on a spherical re-entry capsule. European Conference on Computational Fluid Dynamics [7´th, 2018, Glasgow, Schottland], 2018 more… BibTeX

2017

Journal Articles

  • Stemmer, C., Birrer, M., Adams, N.A.: Disturbance development in an obstacle wake in a reacting hypersonic boundary layer. Journal of Spacecraft and Rockets 54 (4), 2017, 945-960 more… BibTeX Full text ( DOI )
  • Stemmer, C., Birrer, M., Adams, N.A.: Hypersonic boundary-layer flow with an obstacle in thermochemical equilibrium and nonequilibrium. Journal of Spacecraft and Rockets 54 (4), 2017, 899-915 more… BibTeX Full text ( DOI )

Conference Papers

  • Di Giovanni, A.; Stemmer, C.: Numerical Simulations of the High-Enthalpy Boundary Layer on a Generic Capsule Geometry with Roughness. New Results in Numerical and Experimental Fluid Mechanics XI (Notes on Numerical Fluid Mechanics and Multidisciplinary Design 136), 2017Contributions to the 20th STAB/DGLR Symposium Braunschweig, Germany, 2016, pp. 189-199 more… BibTeX Full text ( DOI )
  • Traxinger, C.; Müller, H.; Pfitzner, M.; Baab, S.; Lamanna, G.; Weigand, B.; Matheis, J.; Stemmer, C.; Adams, N.A.; Hickel, S.: Experimental and Numerical Investigation of Phase Separation due to Multi-Component Mixing at High-Pressure Conditions. ILASS2017 - 28th European Conference on Liquid Atomization and Spray Systems, 2017 more… BibTeX Full text ( DOI )

2016

Conference Papers

  • Di Giovanni, A.; Stemmer, C.: Boundary-layer stability of a generic reentry capsule. EFMC (European Fluid Mechanics Conference), 201611 more… BibTeX
  • Di Giovanni, A.; Stemmer, C.: Boundary-layer stability of a generic reentry capsule with real-gas effects. ICTAM (International Congress of Theoretical and Applied Mechanics), 2016 more… BibTeX

2015

Conference Papers

  • Di Giovanni, A.; Stemmer, C.: High-temperature gas effects on the high-enthalpy flow on the wind-ward side boundary-layer of a generic capsule geometry. ESA Symposium on Aerothermodynamics for Space Vehicles [8th], 2015 more… BibTeX

2014

Journal Articles

  • Ghosh, S., Friedrich, R., Stemmer, C.: Contrasting turbulence-radiation interaction in supersonic channel and pipe flow. International Journal of Heat and Fluid Flow 48, 2014, Pages 24 - 34 more… BibTeX Full text ( DOI )

Conference Papers

  • Stemmer, C.; Fehn, J.: High-temperature gas effects at a capsule under re-entry and wind-tunnel conditions. AIAA AVIATION, 2014 more… BibTeX Full text ( DOI )

2013

Conference Papers

  • Ghosh, S.; Friedrich, R.; Stemmer, C.; Cuenot, B.; El Hafi, M.: Effects of radiative heat transfer on the turbulence structure in reacting and inert mixing layers. TSFP, 2013 more… BibTeX
  • So, K.; Chantrasmi, T.; Hu, X.Y.; Stemmer, C.; Iaccarion, G.; Adams, N.A.: Uncertainty quantification of shock-bubble interaction through the stochastic collocation method. EUROMECH Colloquium, 2013 more… BibTeX

2012

Conference Papers

  • Stemmer, C.; Adams, N. A.; Hein, S.; Schröder, W.; Meinke, M.; Olivier, H.; Radespiel, R.; Heitmann, D.: 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", 2012 more… BibTeX

2011

Journal Articles

  • Ghosh, S.;  Friedrich, R.; Pfitzner, M.; Stemmer, C.; Cuenot, B.; Hafi, M. El,: Effects of radiative heat transfer on the structure of turbulent supersonic channel flow. Journal of Fluid Mechanics, 2011 more… BibTeX Full text ( DOI )

Conference Papers

  • Adams, N.A.; Stemmer, C.; Radespiel, R.; Sattelmayer, T.; Schröder, W.; Weigand, B.: SFB-Transgeio 40: Technologische Grundlagen für den Entwurf thermisch und mechanisch hochbelasteter Komponenten zukünftiger Raumtransportsysteme - Motivation und Struktur. Deutscher Luft- und Raumfahrtkongress, 2011 more… BibTeX
  • Birrer, M.; Stemmer, C.; Adams, N.A.: Thermal and Chemical Non-Equilibrium Effects in the Wake of a Boundary-Layer Sized Object in Hypersonic Flows;. ESA Symposium on Aerothermodynamics for Space Vehicles '11 [7th.] , 2011 more… BibTeX

2010

Conference Papers

  • Stemmer, C.; Birrer, M.; Adams, N. A.: Non-Equilibrium Effects in the Wake of a Boundary-Layer Sized Obstacle in Hypersonic Bondary-Layer Flows. EFMC, 2010 more… BibTeX

Misc.

  • So, K.K.; Chantrasmi, T.; Hu, X.Y.; Witteveen, J.A.S.; Stemmer, C.; Iaccarino, G.; Adams, N.A.: Uncertainty analysis for shock-bubble interaction: Proceedings of the 2010 CTR Summer Program. 2010 more… BibTeX

2009

Conference Papers

  • Birrer, M.; Stemmer, C.: Chemical Non-Equilibrium Effects in the Wakre of an Obstacle in Hypersonic Boundary-Layer Flows. Progress in Flight Physics 3, 2009Proceedings of the EUCASS more… BibTeX Full text ( DOI )
  • Stemmer, C.: Instability of high Mach number flows in the presence of high-temperature gas effects. IUTAM Symposium on Laminar-Turbulent Transition, 2009 more… BibTeX

2008

Conference Papers

  • Chen, Z.L.; Devesa, A.; Hickel, S.; Stemmer, C.; Adams, N.A.: A Wall model Based on Simfplified Thin Boundary Layer Equations for Implicit Large Eddy Simulation of Turbulent Channel Flow. STAB-Symposium [16th], 2008 more… BibTeX
  • Stemmer, C.: Instability investigations in non-equilibrium hypersonic reacting flatplate boundary-layer flow with DNS. European Symposium on Aerothermodynamics for Space Vehicles [5th], 2008ESA SP-659 more… BibTeX

Misc.

  • Birrer, M.; Stemmer, C.; Groskpf, G.; Kloker, M.: Chemical Nonequilibrium Effects in the Wake of a Boundary-Layer Sized Object in Hypersonic Flows: Proceedings of the 2008 CTR Summer Program. 2008 more… BibTeX
  • Indinger, T.; Stemmer, C.: Large Scale CFD for Complex flows. High Performance Computing in Science and Engineering. 2008 more… BibTeX

2007

Journal Articles

  • Stemmer, C.: Flat-Plate Flow at Mach 20. ERCOFTAC Bulletin 74, 2007, pp. 61-63 more… BibTeX

Conference Papers

  • Stemmer, C.; Adams, N.A.: Transition investigations on a M=5 ramp. Symposium on Turbulence and Shear Flow Phenomena [5th], 2007 more… BibTeX

Misc.

  • Stemmer, C.: Hypersonic transition investigation in a flat-plate boundary-layer flow at Ma=20. 2007 more… BibTeX

2006

Conference Papers

  • Stemmer, C.: Supersonic and hypersonic boundary layer flows. conference on Turbulence and Interactions, 2006 more… BibTeX

Misc.

  • Stemmer, C.: Influence of non-quilibrium on disturbance waves passing through a planar shock: Proceedings of the 2006 CTR Summer Program. 2006 more… BibTeX

2005

Contributions to Collections

  • Stemmer, C.; Adams, N.A.: Instabilities in hypersonic boundary layers under the influence of high-temperature gas effects. In: High Performance Computing in Science and Engineering ´05. . Springer, 2005, pp. 118-128 more… BibTeX

Conference Papers

2004

Contributions to Collections

  • Stemmer, C.; Adams, N.A.: Investigation of hypersonic flat-plate boundary-layer transition by Direct numerical Simulation. In: High Performance Computing in Science and Engineering ´04. Springer, 2004, pp. 155-162 more… BibTeX

Journal Articles

  • Stemmer, C.: Investigation of high-speed boundary-layer transition by DNS. PAMM 4 (1), 2004, pp. 470-471 more… BibTeX

Conference Papers

  • Stemmer, C.: Transition investigations on hypersonic flat-plate boundary layers flows with chemical and thermal non-equilibrium. Laminar-turbulent Transtiion, Springer, 2004IUTAM-Symposium, pp. 363-368 more… BibTeX
  • Stemmer, C.: Hypersonic transition in flat-plate boundary layers with chemical and thermal non-equilibrium. European Symposium on Aerothermodynamics for Space Vehicles [5th], 2004ESA SP-563, pp. 317-324 more… BibTeX
  • Stemmer, C.; Adams, N.A.: Investigation of supersonic boundary layers by DNS. ECCOMAS, 2004 more… BibTeX

2003

Contributions to Collections

  • Kloker, M.; Stemmer, C.: Three-dimensional steady disturbance modes in the Blasius boundary layer - a DNS study. In: Notes on Numerical Fluid Mechanics. Springer, 2003, pp. 91-110 more… BibTeX
  • Stemmer, C.: Transition in hypersonic flows including high-temperature gas effects. In: Annual Research Briefs - 2003. Center for Turbulence Research, Stanford University, USA, 2003, pp. 475-479 more… BibTeX

2002

Contributions to Collections

  • Stemmer, C.: Hypersonic transition in a flat-plate boundary layer. In: Annual Research Briefs - 2002. Center for Turbulence Research, Stanford University, USA, 2002, pp. 389-396 more… BibTeX

Journal Articles

  • Stemmer, C.: Hypersonic transition in a flat-plate boundary layer. Bull. Am. Phys. Soc., 2002 more… BibTeX

2001

Contributions to Collections

  • Stemmer, C.; Mansour, N.N.: DNS of transition in hypersonic boundary-layer flows including high-temperature gas effects. In: Annual Research Briefs - 2001. Center for Turbulence Research, Stanford University, USA, 2001, pp. 143-150 more… BibTeX

Journal Articles

  • Nitsche, W.; Suttan, J.; Becker, S.; Erb, P.; Kloker, M.; Stemmer, C.: Experimental and numerical investiagtions of controlled transition in low-speed free flight. Aerospace Science and Technology Vol. 5,4, 2001, pp. 245-255 more… BibTeX

2000

Journal Articles

  • Stemmer, C. ; Kloker, M.; Wagner, S.: Navier-Stokes Simulation of a Harmonic Point Sourde Disturbance in an Airfoil Boundary Layer. AIAA Journal Vol. 38,8, 2000, pp. 1369-1376 more… BibTeX Full text ( DOI )

Conference Papers

  • Stemmer, C.; Kloker, M.: Later stages of transition of an airfoil boundary layer flow excited by a harmonic point source. IUTAM-Symposium on Laminar-Turbulent Transition, Springer, 2000, pp. 499-504 more… BibTeX

1998

Conference Papers

  • Stemmer, C.; Kloker, M.; Wagner, S.: DNS of harmonic point source disturbances in an airfoil boundary layer flow. AIAA Fluid Dynamics Conference [29th], 1998 more… BibTeX Full text ( DOI )