Prof. Dr. Lutz Lesshafft

Profil

Derzeitige StellungProfessor W-2 und Äquivalente
FachgebietStrömungsmechanik,Ozeanographie
KeywordsVerbrennungsinstabilität, Turbulenz, Numerische Simulation, Strahllärm, Strömungsinstabilität
Auszeichnungen

2009: Scottish Offshore Achievement Awards (£5000), Kategorie: "The Idea"

2007: Prix de la Meilleure Thèse en Sciences pour l’Ingénieur (5000€), Fondation EADS

2007: Prix de Thèse de l’École polytechnique

2002: VDI Diplompreis

Aktuelle Kontaktadresse

LandFrankreich
OrtPalaiseau
Universität/InstitutionEcole Polytechnique
Institut/AbteilungLaboratoire d'Hydrodynamique (LadHyX)

Gastgeber*innen während der Förderung

Prof. Dr. Eckart H. MeiburgDepartment of Mechanical & Environmental Engineering, Engineering II, University of California, Santa Barbara, Santa Barbara
Beginn der ersten Förderung01.09.2007

Programm(e)

2007Feodor Lynen-Forschungsstipendien-Programm

Publikationen (Auswahl)

2022Karban, Ugur and Bugeat, Benjamin and Agarwal, Anurag and Lesshafft, Lutz and Jordan, Peter: An empirical model of noise sources in subsonic jets, formulated in a linear resolvent framework. 28th AIAA/CEAS Aeroacoustics 2022 Conference. 2022. 2933
2022Douglas, Christopher M and Lesshafft, Lutz: Confinement effects in laminar swirling jets. In: Journal of Fluid Mechanics, 945, 2022,
2022Wang, Chuhan and Kaiser, Thomas and Meindl, Max and Oberleithner, Kilian and Polifke, Wolfgang and Lesshafft, Lutz: Linear instability of a premixed slot flame: flame transfer function and resolvent analysis. In: Combustion and Flame, 240, 2022, 112016
2022Karban, U and Martini, E and Cavalieri, AVG and Lesshafft, L and Jordan, P: Self-similar mechanisms in wall turbulence studied using resolvent analysis. In: Journal of Fluid Mechanics, 939, 2022,
2021Schmidt, Simon and Tammisola, Outi and Lesshafft, Lutz and Oberleithner, Kilian: Global stability and nonlinear dynamics of wake flows with a two-fluid interface. In: Journal of Fluid Mechanics, 915, 2021,
2021Wang, Chuhan and Lesshafft, Lutz and Cavalieri, Andr{\'e} VG and Jordan, Peter: The effect of streaks on the instability of jets. In: Journal of Fluid Mechanics, 910, 2021,
2020Karban, U and Bugeat, B and Martini, E and Towne, A and Cavalieri, AVG and Lesshafft, L and Agarwal, A and Jordan, P and Colonius, T: Ambiguity in mean-flow-based linear analysis. In: Journal of Fluid Mechanics, 900, 2020, R5
2020Shaabani-Ardali, L{\'e}opold and Sipp, Denis and Lesshafft, Lutz: Optimal triggering of jet bifurcation: an example of optimal forcing applied to a time-periodic base flow. In: Journal of Fluid Mechanics, 885, 2020,
2020Martini, Eduardo and Cavalieri, Andr{\'e} VG and Jordan, Peter and Towne, Aaron and Lesshafft, Lutz: Resolvent-based optimal estimation of transitional and turbulent flows. In: Journal of Fluid Mechanics, 900, 2020,
2019He, Chuangxin and Liu, Yingzheng and Gan, Lian and Lesshafft, Lutz: Data assimilation and resolvent analysis of turbulent flow behind a wall-proximity rib. In: Physics of Fluids, 31, 2019, 025118
2019Kaiser, Thomas Ludwig and Lesshafft, Lutz and Oberleithner, Kilian: Prediction of the Flow Response of a Turbulent Flame to Acoustic Pertubations Based on Mean Flow Resolvent Analysis. In: Journal of Engineering for Gas Turbines and Power, 141, 2019,
2019Maia, Igor and Jordan, Peter and Martini, Eduardo and Cavalieri, Andr{\'e} V and Towne, Aaron and Lesshafft, Lutz and Schmidt, Oliver T: Real-Time Estimation in a Turbulent Jet Using Multiple-Input-Multiple-Output Transfer Functions. 25th AIAA/CEAS Aeroacoustics Conference. 2019. 2535
2019Lesshafft, Lutz and Semeraro, Onofrio and Jaunet, Vincent and Cavalieri, Andr{\'e} VG and Jordan, Peter: Resolvent-based modeling of coherent wave packets in a turbulent jet. In: Physical Review Fluids, 4, 2019, 063901
2019Shaabani-Ardali, L{\'e}opold and Sipp, Denis and Lesshafft, Lutz: Vortex pairing in jets as a global Floquet instability: modal and transient dynamics. In: Journal of Fluid Mechanics, 862, 2019, 951--989
2019Cavalieri, Andr{\'e} VG and Jordan, Peter and Lesshafft, Lutz: Wave-packet models for jet dynamics and sound radiation. In: Applied Mechanics Reviews, 71, 2019,
2018Lesshafft, Lutz: Artificial eigenmodes in truncated flow domains. In: Theoretical and Computational Fluid Dynamics, 32, 2018, 245--262
2018Chakravarthy, RVK and Lesshafft, L and Huerre, P: Global stability of buoyant jets and plumes. In: Journal of Fluid Mechanics, 835, 2018, 654--673
2018Konopliv, N and Lesshafft, L and Meiburg, E: The influence of shear on double-diffusive and settling-driven instabilities. In: Journal of Fluid Mechanics, 849, 2018, 902--926
2017Coenen, W and Lesshafft, L and Garnaud, X and Sevilla, A: Global instability of low-density jets. In: Journal of Fluid Mechanics, 820, 2017, 187--207
2017Shaabani-Ardali, L{\'e}opold and Sipp, Denis and Lesshafft, Lutz: Time-delayed feedback technique for suppressing instabilities in time-periodic flow. In: Physical Review Fluids, 2, 2017, 113904
2016Semeraro, Onofrio and Lesshafft, Lutz and Sandberg, Richard D: Can Jet Noise Be Predicted Using Linear Instability Wavepackets?. Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). 2016. 413--418
2016Beneddine, Samir and Sipp, Denis and Arnault, Anthony and Dandois, Julien and Lesshafft, Lutz: Conditions for validity of mean flow stability analysis. In: Journal of Fluid Mechanics, 798, 2016, 485--504
2016Chakravarthy, Ravilla Vamsi Krishna and Lesshafft, Lutz and Huerre, Patrick: Effect of Buoyancy on the Instability of Light Jets and Plumes. Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). 2016. 61--67
2016Semeraro, Onofrio and Lesshafft, Lutz and Jaunet, Vincent and Jordan, Peter: Modeling of coherent structures in a turbulent jet as global linear instability wavepackets: Theory and experiment. In: International Journal of Heat and Fluid Flow, 62, 2016, 24--32
2016Semeraro, Onofrio and Jaunet, Vincent and Jordan, Peter and Cavalieri, Andr{\'e} VG and Lesshafft, Lutz: Stochastic and harmonic optimal forcing in subsonic jets. 22nd AIAA/CEAS Aeroacoustics Conference, AIAA Paper. 2016.
2015Lesshafft, Lutz: Linear global stability of a confined plume. In: Theoretical and Applied Mechanics Letters, 5, 2015, 126--128
2015Chakravarthy, RVK and Lesshafft, L and Huerre, P: Local linear stability of laminar axisymmetric plumes. In: Journal of Fluid Mechanics, 780, 2015, 344--369
2015Lesshafft, L and Coenen, W and Garnaud, X and Sevilla, A: Modal instability analysis of light jets. In: Procedia IUTAM, 14, 2015, 137--140
2013Garnaud, Xavier and Sandberg, Richard D and Lesshafft, Lutz: Global response to forcing in a subsonic jet: instability wavepackets and acoustic radiation. 19th AIAA/CEAS Aeroacoustics Conference. 2013. 2232
2013Garnaud, Xavier and Lesshafft, Lutz and Schmid, PJ and Huerre, Patrick: Modal and transient dynamics of jet flows. In: Physics of Fluids, 25, 2013, 044103
2013Garnaud, Xavier and Lesshafft, Lutz and Schmid, PJ and Huerre, Patrick: The preferred mode of incompressible jets: linear frequency response analysis. In: Journal of Fluid Mechanics, 716, 2013, 189--202
2012Garnaud, Xavier and Lesshafft, Lutz and Schmid, Peter J and Chomaz, J-M: A relaxation method for large eigenvalue problems, with an application to flow stability analysis. In: Journal of Computational Physics, 231, 2012, 3912--3927
2011Lesshafft, Lutz and Hall, B and Meiburg, E and Kneller, B: Deep-water sediment wave formation: linear stability analysis of coupled flow/bed interaction. In: Journal of Fluid Mechanics, 680, 2011, 435--458
2011Garnaud, Xavier and Lesshafft, Lutz and Schmid, Peter and Huerre, Patrick: Global linear stability of a model subsonic jet. 6th AIAA Theoretical Fluid Mechanics Conference. 2011. 3608
2011Lesshafft, Lutz and Meiburg, Eckart and Kneller, Ben and Marsden, Alison: Towards inverse modeling of turbidity currents: The inverse lock-exchange problem. In: Computers \& geosciences, 37, 2011, 521--529
2010Lesshafft, Lutz and Huerre, Patrick and Sagaut, Pierre: Aerodynamic sound generation by global modes in hot jets. In: Journal of Fluid Mechanics, 647, 2010, 473--489
2010Lesshafft, Lutz and Hall, Brendon and Meiburg, Eckart and Kneller, Ben: Hydrodynamic instabilities in a turbidity current boundary layer as a mechanism for sediment wave formation. In: Geo-Temas, 11, 2010, 97--98
2010Lesshafft, Lutz and Marquet, Olivier: Optimal velocity and density profiles for the onset of absolute instability in jets. In: Journal of fluid mechanics, 662, 2010, 398--408
2009Selvam, B and Talon, Laurent and Lesshafft, L and Meiburg, E: Convective/absolute instability in miscible core-annular flow. Part 2. Numerical simulations and nonlinear global modes. In: Journal of fluid mechanics, 618, 2009, 323--348
2008Balakrishnan Selvam, Laurent Talon, Lutz Lesshafft, Eckart Meiburg: Convective/absolute instability in miscible core-annular flow. Part 2. Numerical simulations and nonlinear global modes. In: Journal of Fluid Mechanics, 2008, 323-348
2007Lutz Lesshafft, Patrick Huerre, Pierre Sagaut: Frequency selection in globally unstable round jets. In: Physics of Fluids, 2007,
2007Lesshafft, Lutz and Huerre, Patrick and Sagaut, Pierre: Frequency selection in globally unstable round jets. In: Physics of Fluids, 19, 2007, 054108
2007Lutz Lesshafft, Patrick Huerre: Linear impulse response in hot round jets. In: Physics of Fluids, 2007,
2007Lesshafft, Lutz and Huerre, Patrick: Linear impulse response in hot round jets. In: Physics of Fluids, 19, 2007, 024102
2006Lutz Lesshafft, Patrick Huerre, Pierre Sagaut, Marc Terracol: Nonlinear global modes in hot jets. In: Journal of Fluid Mechanics, 2006, 393-409
2006Lesshafft, Lutz and Huerre, Patrick and Sagaut, Pierre and Terracol, Marc: Nonlinear global modes in hot jets. In: Journal of Fluid Mechanics, 554, 2006, 393--409
2005Lesshafft, Lutz and Huerre, Patrick and Sagaut, Pierre and Terracol, Marc: Global modes in hot jets, absolute/convective instabilities and acoustic feedback. 11th AIAA/CEAS Aeroacoustics Conference. 2005. 3040