Dr. rer. nat. Dirk Peschka


Phone: +49 (0) 30 20372 443
Fax: +49 (0) 30 2044975

Mohrenstr. 39
10117 Berlin
Germany


Weierstrass Group Bulk-Interface processes
Member in the Research Center Matheon
Member in the Einstein Center for Mathematics Berlin
Member of the Deutsche Physikalische Gesellschaft DPG

Collaboration

  • in Berlin
    Marita Thomas (WIAS), Thomas Koprucki (WIAS), Nella Rotundo (WIAS)
    ddfermi group
    Barbara Wagner (WIAS)


  • External
    Andrea Bertozzi (Los Angeles, US), Li Wang (Los Angeles, US), Nebojsa Murisic (Princeton, US), Benoit Paussader (Paris, FR)
    Luca Heltai (Trieste, IT)
    Ralf Seemann (Saarbrücken, Ger)
    Andreas Münch (Oxford, UK), Georgy Kitavtsev (Bristol, UK)
    Patricio Farrell (Hamburg, Ger)
    Barbara Niethammer (Bonn, Ger)

  • Previous Projects
    Ernst Höschele, Konstantin Afanasiev, Konstantina Kostourou, Maciek Korzec, Robert Huth, Sebastian Jachalski, Stefan Bommer

Research interests

  • Modelling and Analysis of Thin Liquid Films
  • Charge Transport in Semiconductors (van Roosbroeck equations)
  • Particle laden flows (suspension flows)
  • Electrochemistry (Nernst-Planck-Poisson-Stokes equations)
  • Stability, Rupture and Dynamics of Free Boundary Problems
  • Applied Mathematics, Asymptotic Expansions, Lubrication Equations
  • Numerics of PDEs and ODEs (FEM, Finite Differences)
  • General Physics

Thesis

Publications

  • Mielke A., Peschka D., Rotundo and Thomas M. (2016) "Gradient structure for optoelectronic models of semiconductors", WIAS Preprint No. 2317 (Proceedings of ECMI 2016, to appear)
  • Bommer S., Jachalski S., Peschka D., Seemann R. and Wagner B. (2017), "Structure formation in thin liquid-liquid films", Adv. Math. Fluid Mechanics, Birkhäuser, pp. 531--574
  • Peschka D., Thomas M., Glitzky A., Nürnberg R., Virgilio M., Guha S., Schröder T., Capellini G. and Koprucki T. (2016), "Robustness analysis of a device concept for edge-emitting lasers based on strained germanium", Optical and Quantum Electronics. Vol. 48(2), pp. 1-7. Springer US.
  • Peschka D., Rotundo N. and Thomas M. (2016) "Towards doping optimization of semiconductor lasers", Journal of Computational and Theoretical Transport. Vol. 45, pp. 410-423. Taylor & Francis.
  • Modeling of Edge-Emitting Lasers Based on Tensile Strained Germanium Microstrips
    Peschka, Thomas, Glitzky, Nürnberg, Gärtner, Virgilio, Guha, Schroeder, Capellini, Koprucki. IEEE Photonics (2015), doi:10.1109/JPHOT.2015.2427093
  • Peschka D. (2015), "Numerics of contact line motion for thin films", IFAC-PapersOnLine. Vol. 48(1), pp. 390-393. Elsevier.
  • Thin-film free boundary problems for partial wetting
    Peschka, Dirk. Journal of Computational Physics (2015), doi:10.1016/j.jcp.2015.04.041
  • Numerics of thin-film free boundary problems for partial wetting
    Peschka, Dirk. WIAS preprint 2016 (2014)
  • Gradient flow perspective of thin-film bilayer flows
    Peschka, Dirk; Huth, Robert; Kitavtsev, Georgy; Jachalski, Sebastian. WIAS preprint 1814 (2013)
  • Droplets on liquids and their journey into equilibrium
    Bommer, Jachalski, Peschka, Seemann, Wagner. EPJ E (2013), arXiv:1212.1183 (2012)
  • Impact of interfacial slip on the stability of liquid two-layer polymer films
    Jachalski, Peschka, Münch, Wagner. WIAS preprint (2012)
  • Dynamics of particle settling and resuspension in viscous liquids
    Murisic, Pausader, Peschka, Bertozzi. Journal of Fluid Mechanics (2013) doi:10.1017/jfm.2012.567
  • Stationary Solutions of Liquid Two-Layer Thin-Film Models
    Jachalski, Huth, Kitavtsev, Peschka, Wagner. SIAP (2013) accepted.
  • Conductivity in nonpolar media: Experimental and numerical studies on sodium AOT-hexadecane, lecithin-hexadecane and Al(dips)3-hexadecane systems
    Schmidt, Prignitz, Peschka, Münch, Wagner, Bänsch, Peukert. Journal of Colloid and Interface Science (2012) doi:10.1016/j.jcis.2012.07.051
  • Interface morphologies in liquid/liquid dewetting
    Kostourou, Peschka, Münch, Wagner, Herminghaus, Seemann. Chemical Engineering and Processing: Process Intensification (2011) doi:10.1016/j.cep.2010.10.006
  • Thin-film rupture for large slip
    Peschka, Münch and Niethammer. Journal of Engineering Mathematics (2009), doi:10.1007/s10665-009-9342-7
  • Self-similar rupture of viscous thin films in the strong slip regime
    Peschka, Münch and Niethammer. Nonlinearity (2009), doi:10.1088/0951-7715/23/2/010


  • Searching for KvBLL calorons in SU(3) lattice gauge field ensembles
    Gattringer, Ilgenfritz, Martemyanov, Müller-Preußker, Peschka, Pullirsch, Schaefer, Schäfer. Nucl. Phys. B Proc. Suppl. (2004)
  • Calorons in SU(3) lattice gauge theory
    Ilgenfritz, Müller-Preußker, Peschka. Phys. Rev. D (2005)

Talks

  • A free boundary problem for the flow of viscous liquid bilayers, ERC Workshop on Modeling Materials and Fluids using Variational Methods, February 22 - 26, 2016, WIAS Berlin, Berlin, February 26, 2016.
  • Mathematical modeling, analysis, and optimization of strained germanium-microbridges, sc Matheon Center Days, April 11 - 12, 2016, Technische Universität Berlin, Institut für Mathematik, Berlin, April 12, 2016.
  • Thin film free boundary problems --- Modeling of contact line dynamics with gradient formulations, CeNoS-Kolloqium, Westfälische Wilhelms-Universität Münster, Center for Nonlinear Science, Münster, January 12, 2016.
  • Towards the optimization of on-chip germanium lasers, sc Matheon Workshop, 9th Annual Meeting ``Photonic Devices'', March 3 - 4, 2016, Zuse Institute Berlin, Berlin, March 4, 2016.
  • tba, 7th European Congress of Mathematics (ECM), July 18 - 22, 2016, Technische Universität Berlin, Berlin.
  • tba, The 19th European Conference on Mathematics for Industry (ECMI 2016), June 13 - 17, 2016, Universidade de Santiago de Compostela, Faculty of Mathematics, Santiago de Compostela, Spain.
  • Droplets on liquids and their long way into equilibrium, Minisymposium ``Recent Progress in Modeling and Simulation of Multiphase Thin-film Type Problems'' of the 8th International Congress on Industrial and Applied Mathematics (ICIAM 2015), August 10 - 14, 2015, International Council for Industrial and Applied Mathematics, Beijing, China, August 12, 2015.
  • Mathematical modeling, analysis, and optimization of strained germanium-microbridges, sc Matheon Center Days, April 20 - 21, 2015, Technische Universität Berlin, Institut für Mathematik, Berlin, April 20, 2015.
  • Modeling and applications of bilayer flows, Seminar of the Research Training Group GRK 1276 ``Structure Formation and Transport in Complex Systems'', Universität des Saarlandes, Institut für Theoretische Physik, Saarbrücken, January 27, 2015.
  • Numerics of contact line motion for thin films, MATHMOD 2015, Minisymposium ``Free Boundary Problems in Applications: Recent Advances in Modelling, Simulation and Optimization'', February 17 - 20, 2015, Technische Universität Wien, Institut für Analysis und Scientific Computing, Wien, Austria, February 19, 2015.
  • Thin-film equations with free boundaries, Jahrestagung der Deutschen Mathematiker-Vereinigung, Minisymposium ``Mathematics of Fluid Interfaces'', September 21 - 25, 2015, Universität Hamburg, Fakultät für Mathematik, Informatik und Naturwissenschaften, Hamburg, September 23, 2015.
  • Gradient formulation of thin-film equations with triple-junctions, Mathematical Approaches to Complex Fluids -- A Two Week Summer School, Cambridge, UK, July 22 - August 2, 2013.
  • Modelling and numerics of thin-films using variational principles, Seminar Thermodynamische Modellierung und Analyse von Phasenübergängen, WIAS, Berlin, December 17, 2013.
  • Dewetting of thin liquid bilayers, 12th International Conference on Free Boundary Problems: Theory and Applications, June 11 - 15, 2012, Frauenchiemsee, June 15, 2012.
  • Liquid/liquid dewetting -- Theory and experiments, Workshop ``Thin Liquid Films and Fluid Interfaces: Models, Experiments and Applications'', December 9 - 14, 2012, Banff International Research Station for Mathematical Innovation and Discovery, Canada, December 10, 2012.
  • Self-similar solutions related to thin film rupture, Berliner Oberseminar Nichtlineare partielle Differentialgleichungen (Langenbach-Seminar), WIAS, Berlin, February 23, 2011.
  • Structure formation in thin liquid films, Workshop on Phase Field Models in Fluid Mechanics, Regensburg, February 14 - 16, 2011.
  • with B. Wagner, Liquid/liquid dewetting - stationary states, International Workshop ``Transport Processes at Fluidic Interfaces - from Experimental to Mathematical Analysis'' DFG-SPP 1506, December 5 - 7, 2011, RWTH Aachen, December 5, 2011.
  • Liquid/liquid dewetting-stationary solutions, Max-Planck-Institut für Mathematik in den Naturwissenschaften, AG Musterbildung, Energielandschaften und Skalierungsgesetze, Leipzig, October 5, 2011.
  • Model reduction for flows of viscous bilayers, Summerschool Partial Differential Equations 2011, September 12 - 16, 2011, Caputh, September 15, 2011.
  • Numerical algorithms and variational formulations for multiphase flows, Seminar Prof. Barbara Wagner, Technische Universität Berlin, Institut für Mathematik, November 24, 2011.
  • Stationary solutions in liquid/liquid dewetting, University of California at Los Angeles, Department of Mathematics, USA, November 9, 2011.
  • Dewetting of viscous bilayers-models and experiments, ICIAM 2011, July 18 - 22, 2011, Vancouver, Canada, July 21, 2011.
  • with B. Wagner, A. Münch, K. Afanasiev, The role of slippage in thin liquid films and droplets on rigid and viscoelastic substrates, Workshop of the DFG Priority Program 1164 ``Nano- and Microfluidics'', Norderney, February 22 - 26, 2010.
  • Dewetting of thin liquid films on viscoelastic substrates, European Coating Symposium, September 7 - 9, 2009, Karlsruhe, September 7, 2009.
  • Self-similar rupture for thin films with slip, EUROMECH Colloquium 497 --- Recent Developments and New Directions in Thin-Film Flow, July 6 - 9, 2009, Royal Society of Edinburgh, UK, July 8, 2009.

Minisymposia

Media

3d hole
Liquid-Liquid Dewetting: Hole growth is driven by surface energies.

3d droplet
Liquid-Liquid Dewetting: Evolution towards the equilibrium state.

2d hole
Liquid-Liquid Dewetting: Hole growth in 2D.