International PhD Position in Numerical Simulations of Reactive Brownian Systems

  • PHD
  • Salaried
  • 11 February 2022

Project description Transport of reactive Brownian particles of complex shape in intricate geometries plays a key role in a wide range of industrial and biological systems. In some applications, such as sensors, the ambition is to get a target particle as quickly as possible to a surface. In others, such as microfluidic reactors, particle-wall interactions lead to fouling, deterioration of functionality and eventually blockage of the flow system.

In these processes, particles move in meandering trajectories due to thermal fluctuations while being transported with the flow. The interaction between particles of different kinds, and between particles and walls, can be very complex. Variations in particle shapes, sizes, and concentrations, as well as the details of the bounding geometry and the characteristics of the carrier flow, tend to give rise to particle migration.

In this project, we will use our previously developed computational framework to study migration, mixing and modulation in geometrically complex reactive Brownian systems. We will identify under what conditions one can enhance or suppress the transport of a Brownian particle towards a surface. The results will be crucial for the further development and optimization of surface-based sensing techniques, for high-level control of mixing and segregation phenomena in microfluidic devices, and for anti-fouling measures in microfluidic devices.

Major responsibilities Your major responsibilities as a PhD student is to pursue your own doctoral studies. You are expected to develop your own scientific concepts and communicate the results of your research verbally and in writing. Your research will be supervised by several well-reputed senior researchers, offering a supportive environment for performing cutting-edge research.

The position also includes teaching or other departmental duties corresponding to 10-20 % of working hours.

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To qualify as a PhD student, you must have a master's level degree corresponding to at least 240 higher education credits in a relevant field (such as Mechanical Engineering, Chemical Engineering, Engineering Physics, Engineering Mathematics or similar). The position requires sound verbal and written communication skills in Swedish and English. If Swedish is not your native language, you should be able to teach in Swedish after two years. Chalmers offers Swedish courses.

We think that you are a self-propelled and motivated person that tend to plan and think strategically. You are creative and like to put new ideas into practice. You have a solid interest in scientific computing and a strong natural curiosity with a genuine wish to learn more and develop your skills and knowledge further in the fields of research, research communication and project management. Previous programming experiences are considered meritorious.

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Full-time temporary employment. The position is limited to a maximum of 4.5-5 years depending on the amount of teaching and departmental work during your doctoral project.

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