Former Employees

Former Administrative Staff
  • Jeanette Felsberg

  • Cornelia Heinz

  • Jutta Hülsmann

  • Alexandra Kalski

  • Madeleine Otto

  • Heike Wessling

Former Post Doctorates

Former Doctoral Researchers

Daniel Bezecny

Dipl.-Phys. Daniel Bezecny

2012 - 2019        Research Fellow at the IMS

Research Expertise


Melanie Bothe

Dipl.-Ing. Melanie Bothe

2011 - 2014        Research Fellow at the IMS

Research Expertise

  • Experimental analysis of local mass transfer phenomena in bubble columns using optical measurement techniques

  • Validation of simulations based on Direct Numerical Simulation (DNS) and Computer Fluid Dynamics (CFD)


Christian Busch

Christian Busch, M.Sc.

2017 - 2018        Research Fellow at the IMS

Research Expertise

  • Liquid/liquid and liquid/gas jet-loop-reactors

  • Liquid/gas trickle-bed-reactors

  • Characterization of a jet stream via Particle Imaging Velocimetry (PIV)


Raffaele Colombi

Raffaele Colombi, M.Sc.

2018 - 2022        Research Fellow at the IMS

Research Expertise


Jürgen Fitschen

Dr.-Ing. Jürgen Fitschen

2018 - 2023        Research Fellow at the IMS

Research Expertise

  • Large Scale Bioreactors

  • Characterization of Heterogeneities in Aerated Stirred Tank Reactors

  • Characterization of Mixing Time


Tobias Freund

Tobias Freund, M.Sc.

2021 - 2022        Research Fellow at the IMS

Research Expertise

CFD Simulation of non-Newtonian fluids


Frans Jan de Jong

Dr.-Ing. Frans Jan de Jong

2010 - 2015        Research Fellow at the IMS

Research Expertise

Influence of boundary layer flows on the structure of macromolecules fixed to a flat plate


Sven Kastens

Dr.-Ing. Sven Kastens

2013 - 2018        Research Fellow at the IMS

Research Expertise

  • Experimental Investigation of Reactive Bubbly Flows - Influence of Boundary Layer Dynamics on Mass Transfer and Chemical Reactions (DFG Priority Project 1740)

  • Experimental investigation and modeling of local mass transfer rates in pure and contaminated Taylor flows (DFG Priority Project 1506)


Florian Kopf

Dr.-Ing. Florian Kopf

2010 - 2013        Research Fellow at the IMS

Research Expertise

Computational fluid dynamics and experimental analysis of transport phenomena in micro-bioreactors


Katrin Laqua

Dipl.-Ing. Katrin Laqua

2011 - 2017        Research Fellow at the IMS

Research Expertise

  • Experimental study of multiphase flows under extreme environmental conditions in combination to the oil spill 2010 in the Gulf of Mexico (C-IMAGE)

  • Description of the fluid pathways of a deep-sea blowout: From multiphase petroleum jet to a rising plume, to bubbles and drops

  • Description of methane hydrate formation

  • Determination of the bubble and drop size distribution with endoscopic Particle Image Velocimetry (PIV)

  • Determination of the physical properties and the composition of the multiphase mixture


Simon Matthes

Dr.-Ing. Simon Matthes

2017 - 2021        Research Fellow at the IMS

Research Expertise

Characterization of Fine Bubbles for Biocatalytic Processes


Christoph Meyer

Dipl.-Ing. Christoph Meyer

2010 - 2015        Research Fellow at the IMS

Research Expertise

  • Experimental investigation and modeling of local mass transfer rates in pure and contaminated Taylor flows (SPP-1506)

  • Study of transport processes at fluidic interfaces on microscale

  • Investigation of local mass transfer rates measuring the velocity and concentration fields simultaneously

  • Analysis of the local velocity field by micro-particle image velocimetry (µ-PIV) and local concentration field by laser-induced fluorescence (LIF) respectively

  • Investigation and influence of contaminations and surfactants on mass transfer

  • Modeling of local mass transfer rates of fluidic interfaces


Stefan Mosler

Dipl.-Math. Stefan Mosler

2010 - 2014        Research Fellow at the IMS

Research Expertise

Modelling, simulation and experimental analysis of two-phase flows in a Y-Y shaped microreactor


Christian-Ole Möller

Dipl.-Ing. Christian-Ole Möller

2012 - 2016        Research Fellow at the IMS

Research Expertise

  • Energy efficient multiphase processes

  • Development of novel structured packings

  • Mass transfer enhancement of multiphase apparatuses

  • Energy efficiency enhancement of multiphase apparatuses

  • Optimization of bubble column reactors

  • Experimental studies of hydrodynamics and mass transfer processes in multiphase apparatuses

Simeon Pesch

Dr.-Ing. Simeon Pesch

2015 - 2020        Research Fellow at the IMS

Research Expertise

  • Center for the Integrated Modeling and Analysis of Gulf Ecosystems (C-IMAGE II, C-IMAGE III)

  • Experimental investigation and modeling of multiphase flow phenomena under extreme environmental conditions in relation to the deep-sea oil spill 2010 in the Gulf of Mexico


Steffen Richter

Dipl.-Wi.-Ing. Steffen Richter

2009 - 2018        Research Fellow at the IMS

Research Expertise

Industrial research for multiphase flow systems


Annika Rosseburg

Dr.-Ing. Annika Rosseburg

2013 - 2018        Research Fellow at the IMS

Research Expertise

  • Aerated stirred tank reactors

  • Scale-up and scale-down

  • Investigation of local and global flow structure, bubble size distribution, gas hold-up and mixing


Sophie Rüttinger

Dr.-Ing. Sophie Rüttinger

2014 - 2019        Research Fellow at the IMS

Research Expertise

Investigation of the influence of vortex structures on transport processes at fluidic interfaces (Priority Program 1740)


Claas Spille

Claas Spille, M.Sc.

2017 - 2021 Research Fellow at the IMS

Research Expertise


Nicolai Szeliga

Dr.-Ing. Nicolai Szeliga

2014 - 2019        Research Fellow at the IMS

Research Expertise

Safety-relevant analysis of the performance of centrifugal pumps, valves and inlet geometries, including stress-related events (SAVE)


Jens Timmermann

Dr.-Ing. Jens Timmermann

2012 - 2017        Research Fellow at the IMS

Research Expertise

Experimental Investigation of Reactive Bubbly Flows - Influence of Boundary Layer Dynamics on Mass Transfer and Chemical Reactions


Christian Urban

Dr.-Ing. Christian Urban

2011 - 2014        Research Fellow at the IMS

Research Expertise

CIWA - Condensation Induced Water Hammer