PhD Position: Numerical prediction of aerosol dynamics in passenger cabins

Place: DLR, Institute of Aerodynamics and Flow Technology, Göttingen

Contact: Prof. Dr. Claus Wagner

Duration: 3 years

Starting date: 1st September 2021

In the department of ground-based vehicles, all aspects of the aerodynamics of vehicles and their air conditioning are researched with the help of experimental and numerical methods in different working groups. The vehicle air conditioning group is concerned with efficient cabin ventilation, thermal comfort and air quality in passenger compartments as well as research into condensation processes at various points in the vehicle. The doctoral position is advertised within the framework of the interdisciplinary Helmholtz project "CORAERO", in which close networking with other research groups from Helmholtz centres is explicitly desired.

The transmission of viruses and other pathogens via aerosols has received special attention worldwide due to the recent COVID-19 pandemic. Public transport such as aeroplanes or rail vehicles have been in special focus since then. Numerical methods for the detection of aerosol dispersion and the local contamination of individual seats are currently either very time-consuming transient simulations, resort to different strong modelling degrees or can only represent steady-state conditions.

The focus of the project is the numerical prediction of the formation of aerosol droplets of different sizes during respiration and their growth or shrinkage in the course of dispersion by means of direct numerical simulations (DNS) of the transport processes in generic spaces. Based on the knowledge gained about droplet dynamics and aerosol dispersion, a modelling of droplet transport for Reynolds-averaged Navier-Stokes simulations (RANS) will be developed to realise transferability to larger passenger spaces.

For further information please see: https://www.dlr.de/dlr/jobs/desktopdefault.aspx/tabid-10596/1003_read-46482/