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Since 2019, Matheon's application-oriented mathematical research activities are being continued in the framework of the Cluster of Excellence MATH+
www.mathplus.de
The Matheon websites will not be updated anymore.

Dr. Dirk Peschka

Mitarbeiter im Projekt OT1 und Mitarbeitervertreter im Matheon Vorstand

Weierstraß-Institut für Angewandte Analysis und Stochastik
Mohrenstraße 39
10117 Berlin
+49 (0) 30 20372-443
peschka@wias-berlin.de


Forschungsschwerpunkte

Numerische Mathematik
Freie Randprobleme
Mathematische Modellierung
Partielle Differentialgleichungen

Projekte als Projektleiter

  • SE-AP15

    Structure Formation in Thin Liquid-Liquid Films

    Dr. Dirk Peschka / Prof. Dr. Barbara Wagner

    Projektleiter: Dr. Dirk Peschka / Prof. Dr. Barbara Wagner
    Projekt Mitglieder: -
    Laufzeit: 01.04.2011 - 30.09.2017
    Status: beendet
    Standort: Weierstraß-Institut

    Beschreibung

    The main topic of this tandem proposal is the direct comparison of results from mathematical modeling, analysis and experimental investigations of rupture,dewetting dynamics and equilibrium patterns of a thin liquid-liquid system. The experimental system uses a PS (polystyrene)/ PMMA (polymethylmethacrylate) thin bilayer of a few hundred nanometer, whose liquid properties can be tuned from Newtonian to visoelastic rheological flow behavior by varying the length of the polymer chains. On these small scales, apart from capillary forces and viscous dissipation, intermolecular forces will play an important role in the dynamics and morphology of the interfaces. The mathematical analysis and numerical simulation of adequate thin film models that will be derived from the underlying fluid mechanical equations, will be used through direct comparisons with experiments. Thus, we aim at clarifying also fundamental properties, such as equilibrium contact angles, singularity formation or dewetting rates. This shall form the basis for more complex situations involving evaporation, surfactant monolayers, and slippage, to yield the understanding crucial for many important nanofluidic problems in nature and technology ranging from rupture of the human tear film to the interface dynamics of donor/acceptor polymer solutions used in organic solar cells.

    http://www.dfg-spp1506.de/project-seemann-wagner-peschka

Projekte als Mitglied

  • OT1

    Mathematical modeling, analysis, and optimization of strained Germanium-microbridges

    Prof. Dr. Michael Hintermüller / Prof. Dr. Alexander Mielke / Prof. Dr. Thomas Surowiec / Dr. Marita Thomas

    Projektleiter: Prof. Dr. Michael Hintermüller / Prof. Dr. Alexander Mielke / Prof. Dr. Thomas Surowiec / Dr. Marita Thomas
    Projekt Mitglieder: Dr. Lukas Adam / Dr. Dirk Peschka
    Laufzeit: -
    Status: beendet
    Standort: Humboldt Universität Berlin / Weierstraß-Institut

    Beschreibung

    The goal of the project Mathematical Modeling, Analysis, and Optimization of Strained Germanium-Microbridges is to optimize the design of a strained Germanium microbridge with respect to the light emission. It is a joint project with the Humboldt-University Berlin (M. Hintermüller, T. Surowiec) and the Weierstrass Institute (A. Mielke, M. Thomas), that also involves the close collaboration with the Department for Materials Research at IHP (Leibniz-Institute for Innovative High Performance Microelectronics, Frankfurt Oder).

    http://www.wias-berlin.de/projects/ECMath-OT1/
  • OT8

    Modeling, analysis, and optimization of optoelectronic semiconductor devices driven by experimental data

    Dr. Marita Thomas

    Projektleiter: Dr. Marita Thomas
    Projekt Mitglieder: Dr. Dirk Peschka
    Laufzeit: 01.06.2017 - 31.12.2018
    Status: beendet
    Standort: Weierstraß-Institut

    Beschreibung

    The goal of the Matheon project D-OT8: Modeling, analysis, and optimization of optoelectronic semiconductor devices driven by experimental data is to optimize the design of a strained germanium microbridge with respect to the light emission. In the funding period June 2016-December 2018 we will develop tools for the parameter identification and optimal design of experiment for optoelectronic applications. The project also involves the close collaboration with the Department for Materials Research at IHP (Leibniz-Institute for Innovative High Performance Microelectronics, Frankfurt Oder).

    http://www.wias-berlin.de/projects/ECMath-OT8/

Projekte als Gast