Biography
- since September 2011: Professor for Flow Control and Aeroacoustics at the Institute of Aerodynamics and Fluid Mechanics, Technische Universität München
- January 2009 – August 2011: Research & Development, process engineering, Jülich.
- July 2004-December 2008: Deutsche Bahn AG, DB Systemtechnik, Aerodynamics and HVAC group, München-Freimann. Project manager for "Aerodynamics in Open Air".
- February 2002, Habilitation thesis "Numerical simulation and analysis of turbulent flows", Technische Universität Berlin
- July 1998-June 2004: Assistant at the Hermann-Föttinger-Institute for Fluid mechanics (now ISTA), Technische Universität Berlin; Project manager in Sfb 557 "Control of complex turbulent shear flows"
- November 1995-June 1998: Assistant, Department of Mathematics, Technische Universität Berlin
- September 1992-October 1995: Postdoctoral Fellow at Center for Turbulence Research, Stanford University/NASA Ames Research Center, CA, USA.
- August 1989-August 1992: Doctoral student at the DLR institute of physics of the atmosphere, Oberpfaffenhofen. Supervisor: Prof. U. Schumann, thesis "Turbulent diffusion in a homogeneous shear flow with stable density stratification". Scholarship of Volkswagenstiftung.
- June 1989: Diploma in mechanical engineering, Technische Universität München
- October 1985: Intermediate diploma in process engineering, University of Karlsruhe (KIT)
Research interests
- Numerical flow simulation and computational aeroacoustics (CAA)
- Flow control by passive and active means
- Aerodynamics and aeroacoustics of vehicles (road, rail, aerospace)
- Flow noise generation and attenuation in ducts
Courses
Lectures with Exercises:
Aeroacoustics (MW 1692): WS
Continuum Mechanics (MW 1405): WS
Fundamentals of Numerical Fluid Mechanics (MW 1913): WS, SoSe
Computational Aeroacoustics (MW 2204): SoSe
Flow Control (MW 2078): SoSe
Practical Courses:
Computational Aeroacoustics - Practical Course (MW 2268): SoSe
Computational Fluid Dynamics - Practical Course (MW 1846): WS, SoSe
Publications
Peer reviewed Journal Papers see here.
Conference Proceedings see here.
Reports see here.
Peer reviewed Journal Papers
2019
- Non-Equilibrium Scaling Applied to the Wake Evolution of a Model Scale Wind Turbine. Energies 12 (14), 2019, 2763 more… Full text ( DOI )
2018
- Control of a three-dimensional turbulent shear layer by means of oblique vortices. Theoretical and Computational Fluid Dynamics (Vol. 32 / Issue 2), 2018, pp. 179-199 more… Full text ( DOI )
- Influence of ground roughness on the wake of a yawed wind turbine - A comparison on wind-tunnel measurements and model predictions. Journal of Physics: Conference Series (Vol. 1037, Issue 7), 2018, Article number 072005 more… Full text ( DOI )
2016
- Wind-tunnel modelling of the tip-speed ratio influence on the wake evolution. Journal of Physics: Conference Series (Vol. 753, Issue 3 ), 2016, 032061 more… Full text ( DOI )
2012
- The effect of sweep on the forced transitional flow over a backward-facing step. Computers and Fluids (Vol. 59), 2012, pp. 1-10 more… Full text ( DOI )
2008
- Measures to counteract micro-pressure waves radiating from tunnel exits of DB´s new Nuremberg-Ingolstadt high-speed line. Notes on Numerical Fluid Mechanics and Mulitdisciplinary Design , 2008, pp. 40.47 more… Full text ( DOI )
2004
- Phase-error reduction in large-eddy simulation using a compact scheme. Fluid Mechanics and its Applications (Vol. 65), 2004, pp. 83-98 more…
- Turbulent flow over a swept backward-facing step. European Journal of Mechanics - B / Fluids (Vol. 23 (3)), 2004, pp. 501-518 more… Full text ( DOI )
- A priori and a posteriori tests of inflow conditions for large-eddy simulation. Phys. Fluids (Vol. 16(12)), 2004, pp. 4696-4712 more…
- A priori and a posteriori tests of inflow conditions for large-eddy simulation. Physics of Fluids (Vol. 16, Issue 12), 2004, pp. 4696-4712 more… Full text ( DOI )
2003
- Eigenmode decomposition of turbulent velocity fields behind a swept, backward-facing step. Journal of Turbulence (Vol. 4), 2003, pp. 18 more… Full text ( DOI )
- The effect of sweep-angle variation on the turbulence structure in a separated, three-dimensional flow. Theoretical and Computational Fluid Dynamics (16 (3)), 2003, pp. 187-210 more… Full text ( DOI )
- A priori testing of wall models for separated flows. Physics of Fluids (Vol. 15, Issue 10), 2003, pp. 3048-3064 more… Full text ( DOI )
2000
- Direct numerical simulation of flow over a swept, rearward-facing step at ReH=3000. Physical Fluids (Vol. 12, Issue 9), 2000, pp. 2320-2337 more… Full text ( DOI )
1999
- Study of flow in a planar asymmetric diffuser using Large Eddy Simulation. Journal of Fluid Mechanics (Vol. 390), 1999, pp. 151-185 more… Full text ( DOI )
1997
- Cell aspect ratio dependence of anisotropy measures for resolved and subgrid scale stresses. Journal of Computational Physics (Vol. 136, Issue 2), 1997, pp. 399-410 more… Full text ( DOI )
1994
- Large-eddy simulation of homogeneous turbulence and diffusion in stably stratified shear flow. Journal ofFluid Mechanics (Vol. 280), 1994, pp. 1-40 more… Full text ( DOI )
Conference Proceedings
2020
- Experimental investigation on acoustic effects of geometrical modifications of splitter attenuators for power generation systems. 10th European Congress and Exposition on Noise Control Engineering, Euronoise 2015; Maastricht; Netherlands, Euronoise 2015, 2020, 669-674 more…
2016
- Model scale experiments of wind conditions on top of a former waste dump. Euromech-Kolloquium, 2016 more…
2009
- Prediction of micro-pressure wave emissions from high-speed train tunnels. International Symposium on Aerodynamics and Ventilation of Vehicle Tunnels, 2009 more…
2008
- Sensitivity of the wave-steepening in railway tunnels with respect to the friction model. International Colloquium on Bluff Bodies Aerodynamics & Applications [VI.], 2008 more…
- Cross-comparison of measurement techniques for the determination of train-induced aerodynmic loads on the trackbed. International Colloquium on Bluff Bodies Aerodynamics & Applications, 2008 more…
- A generic train-underfloor experiment for CFD validation. International Colloquium on Bluff Bodies Aerodynamics & Applications, 2008 more…
- Assessment of the aerodynamic load causing ballast projections: results from the DEUFRAKO project Aerodynamics in Open Air (AOA). World Congress on Railway Research (WCRR), 2008 more…
2007
- Measures to counteract micro-pressur waves radiating from tunnel exits of DB´s new Nuremberg-Ingolstadt high-speed line. Notes on Numerical Fluid Mechanics and Multidisciplinary Design. International Workshop on Railway Noise, 2007 more…
2004
- A priori tests of models for the mean and for the fluctuating wall shear stress in flows with separation. Direct and large-Eddy Simulation V, 2004, pp. 125-132 more…
2002
- Influence of oblique vortices on shear-layer development behind a swept, backward-facing step. Advances in Turbulence IX: Proceedings of the Ninth European Turbulence Conference, 2002, pp. 723-726 more…
- The swept backward-facing step with an upstream turbulent boundary layer. Advances in Turbulence IX: Proceedings of the Ninth European Turbulence Conference, 2002 more…
- Phase-error reduction in LES using a compact scheme. Advances in LES of Complex Flows, Kluwer Acad. Pub. , 2002Proceedings of the Euromech Colloquium 412, pp. 83-98 more…
- A hybrid direct / iterative algorithm for solution of Poisson´s equation based on the Schur complement method. High Performance Scientific and Engineering Computing, Springer, 2002proceeding ot the 3rd International FORTWIHR conference on HPSEC, pp. 175-182 more…
2001
- LES of wall-bounded turbulence based on a 6th-order compact scheme. Direct and Large-Eddy Simulation IV, Kluwer Acad. Publ., 2001, pp. 37-44 more…
- Generation of turbulent inflow data with a prescribed shear-stress profile. DNS/LES Progress and Challenges, Greyden Press, 2001Proceedings of the Third AFOSR International Conference on DNS/LES, pp. 319-326 more…
2000
- Recovery of a turbulent boundary layer behind a swept, reqrward-facing step. Advances in Turbulence VIII, Gran Capitan, 2000, pp. 269-272 more…
1999
- Direct numerical simulation of flow over a swept, rearward-facing step. Direct and Large Eddy simulation III, Kluwer Acad. Publ., 1999, pp. 393-404 more…
1995
- On the behavior of centered finite difference schemes for large eddy simulation. International Symposium on Computational Fluid Dynamics [6´th], 1995 more…
1991
- Comparison of direct and large-eddy simulation of turbulent scalar transport in atbly stratified shear flows. Symposium on Turbulent Shear Flows [8th.], 1991, 12.4.1-12.4.6 more…
Reports
2008
- Deufrako Project "Aerodynamics in Open Air" (AOA), WP 1 Underfloor Aerodynamics – Summary Report. AOA, 2008, more…
2004
- Ergebnisberichte 2001-2004 des Sonderforschungsbereichs 557 – Abschlussbericht des Teilprojekts A. , Ed.: DFG, TU Berlin (Berlin) , 2004, more…
2001
- Ergebnisberichte 1998-2001 des Sonderforschungsbereichs 557 – Teilprojekt A3: Beeinflussung einer abhlösenden Grenzschicht durch kontrolliertes Einblasen und Absaugen an der Wand. , Ed.: DFG, TU Berlin (Berlin) , 2001, more…
- Ergebnisberichte 1998-2001 des Sonderforschungsbereichs 557 – Teilprojekt A6: Numerische Simulation, Beeinflussung und Eigenmodenanalyse einer abgehlösten Strömung mit Querkomponente. , Ed.: TU Berlin, 2001, more…
1995
- CTR Annual Research Briefs – Large-eddy simulation of flow around an airfoil on a structured mesh. Center for Turbulence Research, Stanford Univ. / NASA Ames Research Center, 1995, more…
- CTR Annual Research Briefs 1995 – Experiments with explicit filtering for LES using a finite-difference method. Center for Turbulence Research, Stanford Univ. / NASA Ames Research Center, 1995, more…