Most new engines will use direct injection of the fuel, making the fuel spray a critical part of the engine. Fuel spray behavior controls engine performance and emissions, and yet there is much that remains unknown about how a spray breaks up, mixes, evaporates and burns. In this project, you would develop predictive models for fuel sprays, in tight cooperation with experiments. In particular, we will focus on i) cavitation inside the injector and ii) primary break-up using stochastic modeling approaches such as One-Dimensional Turbulence (ODT). The aim of the project is the development of new computational models that are both efficient and more predictive than in the past. Without predictive models it will be impossible to optimize combustion computationally.
We are seeking two new PhD students to start in the spring of 2013. One PhD student will focus on cavitation modeling and another student on primary break-up of sprays. The PhD positions are funded within a bigger grant from the Knut and Alice Wallenberg (KAW) foundation. The grant is for basic spray research including both experiments and modeling. Chalmers has a unique laser diagnostic technique for imaging how a spray breaks up providing extensive data for model validation. The group has advanced measurement capabilities that do not exist anywhere else and will provide a unique database for model development and validation.
The PhD students will:
Develop new predictive models for i) cavitation and ii) primary break-up
Implement and test the models
Validate the models against experimental data
Cooperate with the experimental group and external project partners at other universities and institutes
You should have a Master of Science (Swedish: civilingenjör exam; a four year US bachelor’s degree meets the minimum requirement), preferably in Mechanical Engineering, Applied Physics, Applied Mathematics, Computer Science, or equivalent. Knowledge fluid mechanics is considered essential. Good knowledge of turbulence, combustion science, and numerical methods is highly desirable. Experience with CFD codes and programming skills in compiled languages such as C or C++ are regarded an advantage. You should have a genuine interest and curiosity in the more theoretical aspects of engineering science and should be prepared for a position that involves quite a lot of code development and high performance computing. You will collaborate with several research partners, so the ability to cooperate is considered very important.
Details about employment as a PhD student at Chalmers
The PhD student employment is limited to maximum five years and will normally include 20 percent departmental work, mostly teaching duties. The salary for the position is specified in Chalmers' general agreement for PhD student positions. Chalmers ( http://www.chalmers.se ) is a semi-private university offering degrees in science, engineering and architecture. It is located on a hill near the center of Gothenburg, the second largest city in Sweden ( http://www.goteborg.com/ ). Graduates of this program go on to positions in academia, research labs, and industry. Many find employment at Volvo Car and Volvo Truck (located in Gothenburg), Scania (just south of Stockholm), and others. Gothenburg is located on the west coast of Sweden nearly midway between Copenhagen, Denmark and Oslo, Norway. It is Scandinavia’s largest port city with around 600,000 inhabitants. Gothenburg has a lively nightlife in addition to many outdoor oppor-tunities. The archipelago just outside of the city is wonderful for sailing. To the east one finds open country filled with hills and lakes. To the north one finds mountains (including good deals at ski hills in Norway) and wilderness, and to the south one finds the rest of Europe (with cheap flights to most des-tinations).
The application should be marked with Ref 20120375 and written in English. The application should be sent electronically and be attached as pdf-files, as below:
Application: (Please name the uploaded document in ReachMee as: APPLICATION, family name, ref. number)
A letter of application detailing your specific qualifications for the position (named: QUALIFICATIONS, family name, ref. number)
- attested copies of education certificates, including grade reports and other documents, English language test, e.g. TOEFL score,
- letters of recommendation from academic institutions and/or previous employers (optional),
Publications: (named: PUBLICATION, family name, ref. number)
Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped).
- relevant work such as bachelor's or master's thesis (or outline of a thesis under preparation).
Application deadline: 2013-01-31
For questions, please contact:
Michael Oevermann, Professor
Division of Combustion
Department of Applied Mechanics
Phone: ++46 31 772 1401