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Dipl.-Phys. Arash Azhand
EW 627/28 Eugene-P.-Wigner-Gebäude (Physik-Neubau)
Sekr. EW 7-1
Institut für Theoretische Physik
Technische Universität Berlin
Hardenbergstr. 36
D-10623 Berlin

azhand@itp.tu-berlin.de [1]


SS 2014
Theoretische Physik IV: Thermodynamik und Statistik [2]
WS 2013/2014
Theoretische Physik I: Mechanik [3]
SS 2013
Theoretische Physik IV: Thermodynamik und Statistik [4]
WS 2012/2013
Theoretische Physik III: Elektrodynamik [5]
SS  2012
Theoretische Physik IV: Thermodynamik und Statistik [6]
WS 2011/2012
Theoretische Physik V: Quantenmechanik II [7]
SS  2011
Theoretische Physik IV: Thermodynamik und Statistik [8]
WS 2010/2011
Theoretische Physik III: Elektrodynamik [9]
SS  2010
Theoretische Physik II: Quantenmechanik [10]
WS 2009/2010
Theoretische Physik I: Mechanik [11]

Current work

Three-Dimensional Waves in Thin Layers

My research objective is to study the emergence and evolution of three-dimensional (chemical) waves in thin layers. This will be done both experimentally and computationally, in order to gain insights on the behavior of these wave patterns in restricted geometries.


Experimentally we have the opportunity to use open gel reactors and prepare thin gel layers for investigation of waves in the paradigmatic photo-sensitive Belousov-Zhabotinsy reaction (PBZR).
It is planned to initiate scroll waves and investigate their behavior under the constrained geometry of the thin gel layers. In particular the interaction of the wave patterns with the surrounding boundaries of the gel layers is important. Further points for experimental investigation are:

  • Application of excitability gradient through illumination of the gel interface (Lambert-Beer-Relation).
  • Investigation of scroll wave instabilities ( e.g. line tension).
  • Application of forcing through illumination (periodic forcing, random forcing, ...).
  • Turbulent behavior (Winfree turbulence).

Computationally my objective is to set up an object-oriented platform-independent framework as a basis for organization of numerical work that is already done in our working group and will be done presently and in the future. The implementation will be carried out in Java and C++.
The goal is to provide modulary numerical tools that can be applied effectively for solution and visualization of the scientific problems we are dealing with in the working group and in particular the problem of three-dimensional waves in thin layers, I am dealing with.
Considering the latter case, it is my goal to provide a realistic simulation of the experimental setup in order to achieve comparison between our experimental and computational contributions.

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