Vacancy Notice  019/2023

The Otto von Guericke University Magdeburg (OVGU) is an internationally oriented and regionally networked university with a strong research profile.

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The Faculty of Process and Systems Engineering seeks to fill the following vacancy at the Chair of Mechanical Process Engineering:

Research Assistant or Associate (m/f/d)
in the field of numerical modelling of multiphase flows, including interfacial and particle-laden flows



Salary Scale:
13 TV-L
Date commencing: next possible date
Fixed term until:
36 months
Contract status:
100 %

At the Chair of Mechanical Process Engineering (http://www.mvt.ovgu.de) we are a group of enthusiastic researchers with intensive research activities in the numerical modelling of multiphase flows, including interfacial and particle-laden flows.

Surface-active substances (surfactants) adsorbed at gas-liquid interfaces are omnipresent and understanding their subtle but often dominant influence is, consequently, of central importance for a vast amount of engineering applications and natural phenomena. However, the scientific community still lacks a comprehensive understanding of the influence of surface viscosity and inertia, which is important in engineering applications ranging from bioengineering to additive manufacturing, in capillary systems including changes in interface topology. The objective of the advertised position is to develop computational models to describe gas-liquid interfaces with surfactants, and use these models to study fundamental physical mechanisms associated with the nonlinear behaviour of surfactant-laden capillary systems, focusing on the subtle but important influence of surface viscosity, as well as the evolution of capillary instabilities and breakup. This will include the development of new numerical models to describe the complex behavior of surfactants adsorbed at a gas-liquid interface and the ensuing stresses that act on the surrounding fluids, as well as conducting systematic studies using our in-house CFD code of the dynamic behavior of droplets, bubbles and liquid films laden with surfactants. For instance, one of the applications that will be of interest in the scope of this project will be the modelling rupture and atomization of surfactant-laden jets and ligaments, as they occur in 3D printing techniques.

If the successful applicant does not yet have a PhD, the successful applicant is expected to write a PhD thesis based on this work, which will be supported accordingly from our side.

Your primary responsibilities:

  • Derivation and implementation of numerical methods for the modelling of surfactant-laden droplets, bubbles and liquid films
  • Design, execution and analysis of numerical studies of the dynamics, rupture and atomization of surfactant-laden gas-liquid flows
  • Participation in the development of our in-house simulation tools in C and with MPI
  • Cooperation with our collaborators, who will conduct experiments in support of this project

Requirements for the position:

  • MSc degree or equivalent in mechanical engineering, process engineering, physics or a related discipline, if available PhD
  • Above-average academic performance in the subjects fluid mechanics, thermodynamics, simulation methods and computational fluid dynamics (CFD)
  • Proven track record in working with physical problems and numerical methods
  • Proven coding experience in C, C++ or Fortran in the context of numerical modelling
  • Experience in computational fluid dynamics is highly desirable
  • Fluent command of written and spoken English is required

For further information about the position, please contact Prof. Dr. Berend van Wachem by email, berend.vanwachem(at)ovgu.de.

In addition to all the usual social benefits of the public sector, we have more to offer, such as modern working conditions, a wide range of training and development opportunities, and a positive work environment that is highly valued by our employees. We also offer a wide range of sports and leisure activities, extensive catering in our canteens and cafeterias as well as workplace health promotion.

Otto von Guericke University is a signatory of the German Diversity Charter. We welcome your application, regardless of gender, cultural and social background, age or sexual orientation. Applications from severely disabled people or people with an equivalent impairment will be given priority in the case of equal suitability, ability and professional expertise. The Otto von Guericke University strongly promotes gender equality in all professional areas.

Please note the information for storage of personal data: https://www.uni-magdeburg.de/en/data_protection.html.

Please send your complete application (cover letter, curriculum vitae, graduation certificates, references) by February 5, 2023 (date of receipt of application) using the online application portal.



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