Apl. Prof. Dr.-Ing. Christian Stemmer
Academic Career and Research Areas
Prof. Stemmer's (*1967) conducts direct numerical simulations on high-performance computers to investigate the influence of non-equilibrium effects and roughness (ablation) on the laminar-turbulent transition in hypersonic boundary-layer flows. Prof. Stemmer also works on supercritical flow simulations and combustion chamber calculations for rocket-engine environments and is active in research-data management.
Prof. Stemmer studied aerospace engineering at the University of Stuttgart followed by a PhD 2001 at the same institution. Receiving a two-year postdoctoral grant, he went to the Center for Turbulence Research at Stanford University and NASA Ames Reseach Center. 2003 he switched to the Technical University of Dresden for two years before coming to TUM in 2005. After his habilitation 2011, he worked at TUM as an Adjunct Teaching Professor. Prof. Stemmer was appointed TUM Adjunct Professor in the field of high-speed aerodynamics in 2019.
Key Publications (all publications)
Ulrich, F; Stemmer, C: Investigation of vortical structures in the wake of pseudo-random roughness surfaces in hypersonic reacting boundary-layer flows. International Journal of Heat and Fluid Flow. 2022; 95: 108945.
AbstractChen, S; Stemmer, C: Modeling of Thermochemical Nonequilibrium Flows Using Open-Source Direct Simulation Monte Carlo Kernel SPARTA. Journal of Spacecraft and Rockets, 2022; 59(5): 1634-1646.
AbstractHaidn, OJ.; Adams, NA.; Radespiel, R; Sattelmayer, T; Schröder, W; Stemmer, C; Weigand, B: “Future Space-Transport-System Components under High Thermal and Mechanical Loads”. Results from the DFG Collaborative Research Center TRR40. Cham: Springer International Publishing; 2021.
AbstractHein, S; Theiss, A; Di Giovanni, A; Stemmer, C; Schilden, T; Schröder, W; Paredes, P; Choudhari, MM.; Li, F; Reshotko, E: "Numerical Investigation of Roughness Effects on Transition on Spherical Capsules". Journal of Spacecraft and Rockets. 2019; 56 (2): 388-404.
AbstractDi 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. 2018; 856: 470-503.
Abstract