The department of Mechanics and Maritime Sciences (M2) conducts fundamental and applied research in all modes of transport to achieve sustainable technological solutions. M2 holds one of Sweden’s most extensive simulator centre for navigation and propulsion of ships, as well as world class laboratories within combustion engineering and wind tunnels. The department also offers and contributes to bachelor and master programs in areas such as Shipping, Automotive and Mechanical Engineering to mention a few. In addition, professional education is performed on both a national and international level, with specific designed mission training for different social actors, within our ambition for a lifelong learning. The department continuously strives to establish a cooperation between academia, industry, and society, with a great focus on utilization. M2 is characterized by an international environment with employees and students from around the world, as well as outstanding research and world class education. M2 consists of seven different divisions within the areas of engineering and maritime sciences, and one division of administration and support.


Information about the project

Governments as well as customers throughout the world are requesting internal combustion engines with higher efficiencies and lower emissions. Stringent future emission standards put severe pressure on the research and development departments of all engine manufactures to have the required engine technology market ready in time. Multidimensional numerical engine combustion simulations using techniques of computational fluid dynamics (CFD) are nowadays an integral part of engine research and development.

Most CFD combustion models in use today are based on i) the assumption of fast chemistry leading to a scale separation of turbulent and chemical time and length scales and ii) often on the combustion mode (premixed or non-premixed combustion). However the next generations of combustion engines such as IC engines, gas turbines and burners will (at least partly) feature turbulent combustion in unconventional mixed-mode regimes which are not adequately predicted by many combustion models used today. To further improve combustion engines by increasing efficiency and lowering emissions it is of utmost importance to have models available which are predictive under all operating conditions.

The purpose of the proposed project is the development and assessment of a turbulent combustion model with the potential to be a truly predictive model not only in classical combustion modes and regimes but -- even more important -- under conditions not covered by standard combustion models. The overall modeling strategy used here is called LES-LEM and is based on large-eddy simulation (LES) of turbulent flow combined with the linear-eddy model (LEM) as a sub-grid combustion model.

The position is located within the division of Combustion and Propulsion Systems at the Department of Applied Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden. The research at the division of Combustion covers a wide range of topics related to internal combustion engines of both fundamental and applied character. The division has state-of-the-art experimental facilities and a strong CFD research group. The research is very often done in close cooperation with national and international partners from both academia and industry. The main goals for the CFD research group are the development of predictive turbulent (spray) combustion models which are required to develop more efficient and environmentally friendly vehicles.  

Major responsibilities
Within the project the PhD student will develop and apply CFD models for LES simulations of turbulent combustion. The project requires extended periods of programming and model development. The successful candidate is expected to present the project's progress at international conferences and local meetings as well as to write articles to be published in research journals of highest quality.  

The position generally also includes teaching on Chalmers' undergraduate level or performing other duties corresponding to up to 10 percent of working hours.

Position summary
Full-time temporary employment. The position is limited to a maximum of 4,5 years.

Qualifications
For the position a master's level degree awarded by an internationally recognized university in Mechanical Engineering, Engineering Physics, Physics, or Applied Mathematics is mandatory. The candidate should have very good knowledge in fluid mechanics, turbulence theory, and thermodynamics. Practical experience in C++ programming, the Linux operating system and strong knowledge in Computational Fluid Dynamics (CFD) are mandatory for this position. The suitable candidate should be aware of the fact that the position requires extended periods of programming and model development. Therefore, the ideal candidate should have some passion for computer simulations and modeling going beyond the usual interest in programming. Good communication skills to work in a bigger research team are necessary as well. Very good English writing skills are mandatory as well.   

Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers.

Application procedure
The application should be marked with Ref 20180060 and written in English. The application should be sent electronically and be attached as pdf-files, as below:

CV: (Please name the document: CV, Family name, Ref. number)
• CV
• Other, for example previous employments or leadership qualifications and positions of trust.
• Two references that we can contact.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number)
• 1-3 pages where you introduce yourself and present your qualifications.
• Previous research fields and main research results.
• Future goals and research focus. Are there any specific projects and research issues you are primarily interested in?

Other documents:
• Copies of bachelor and/or master’s thesis.
• Attested copies and transcripts of completed education, grades and other certificates, eg. TOEFL test results.

Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped).

Application deadline: 31 March 2018

For questions, please contact:
Prof. Michael Oevermann,
Combustion and Propulsion Systems,
michael.oevermann@chalmers.se,
+46 31 772 1401 

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. *** 
   



Chalmers University of Technology conducts research and education in engineering sciences, architecture, technology-related mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our eight Areas of Advance; Building Futures, Energy, Information & Communication Technology, Life Science, Materials Science, Nanoscience & Nanotechnology, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez!