Postdoc in Detached Eddy Simulations and aeroacoustic analysis

The Department of Mechanics and Maritime Sciences at Chalmers University of Technology invites applications for a two-year postdoctoral position starting in Spring/Summer 2021. The successful candidate will be offered a two-year stipend position at Chalmers in the Division of Fluid Dynamics.

The project
The postdoc work forms a part of an EU H2020 project addressing aircraft noise reduction with particular focus on airframe noise mitigation by means of innovative designs and noise-control technologies. Dedicated effort is required to achieve noise reduction based on CFD (Computational Fluid Dynamics) and CAA (Computational Aero-acoustics).

For the LG configuration, numerical simulation and modelling will be carried out to explore LG noise reduction with a perforated fairing. The planned activity is a continuation and refinement of previous effort, e.g., in the recent IMAGE project, for LG noise manipulation using wiremesh/fairing. The research will be carried out in close collaboration with other project partners. Instead of resolving the detailed flow past the fairing (mesh screen), a numerical model will be used, which will be verified against experimental data. This part of work aims at enabling efficient and reasonable CFD/CAA analysis, particularly, for the aero-acoustic assessment of whole-body aircraft configuration using high-fidelity hybrid RANS-LES methods together with acoustic analogy. For the HLD configuration, CFD/CAA analysis will be conducted on noise generation and propagation of a low-noise configuration with Krueger slat.

The numerical tools are STAR-CCM+, and/or the in-house M-Edge CFD solver together with in-house CAA tools (both are programmed in Fortran). Experience of using either of the above software, as well as Python/Matlab and Fortran are favored. The applicant must have good ability in reporting and disseminating his/her research results in English.

Major responsibilities
Your primary responsibility will be to pursue research and development related to DES and CAA. You are expected to develop your own scientific ideas and concepts, and to communicate the results of your research verbally and in writing. You will be guided by senior researchers at the involved departments. If the applicant is interested, the position also includes opportunities for supervising MSc anf BSc students. The position is meritorious for future research duties within academia as well as industry/the public sector.

The position is financed by stipend (tax free) with an appealing salary. It is limited to two years with current funding. If the applicant is very succesful and if new external funding is available, the position may be extended another one or two years.

Research to be carried out by the succesful applicant:
-Carry out DES/LES simulations
-Analyze and try to understand the physics
-Analyze and identify noise sources
-Flow control for redeuced noise
-Write scientific journal paper(s)

The division
The Division of fluid dynamics carries out research in a wide range of applications such as aerospace (which is largest), automotive, windpower, hydropower, medicine, process industry, vehicle aerodynamics, shipping, and bio-mechanics. Almost every single research project is carried out in cooperation with a company. We do both numerical simulations and experiments. We develop our own in-house CFD codes for both incompressible and compressible flow, aero and vibro-acoustics as well as system analysis of gas turbines and we are very active in the OpenFOAM community. We have a fully equipped laboratory (Chalmers laboratory of fluids and thermal sciences) with three large windtunnels, a full set of PIV and IR imaging equipment. We do research on turbulent incompressible and compressible single and multiphase. The reseachers at the Division carry out both numerical and experimental research and develop new and improved turbulence and multiphase models and experimental techniques for both fundamental and real-world flows. We frequently build dedicated experimental facilities in collaboration with industry in order to better understand fluid flow details.

Contract terms
Full-time temporary employment. The position is limited to a maximum of two years (1+1).

Our offer to you
Chalmers offers a cultivating and inspiring working environment in the dynamic city of Gothenburg. 
Read more about working at Chalmers and our benefits for employees.

Application procedure
To apply, please go to:
https://www.chalmers.se/en/about-chalmers/Working-at-Chalmers/Vacancies/Pages/default.aspx?rmpage=job&rmjob=9306


Application deadline: 31 March, 2021