PhD scholarship in Experimental Investigation of Turbulent Gaseous Jets in Two-stroke Marine Engines

onsdag 13 jan 21

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Frist 5. februar 2021
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DTU, Department of Mechanical Engineering have a long-time research collaboration with MAN Energy Solution on two-stroke engines for large ships. To reduce carbon footprint, new engine designs aim at using gaseous fuels like methane and ammonia. We want to investigate solutions for premixing gaseous fuels into the engine cylinder. The project is funded by the Danish Energy Agency (EUDP program).

You will play an important role in the work on optimizing a novel premixing process in the engine cylinder during scavenging. Our goal in the project is to investigate the mixing process, to test and develop new nozzle designs and injection strategies and to provide experimental data that can validate numerical simulation. You will work together with a post doc, who will do numerical simulations, and with a large research group in turbulence at DTU Mechanical Engineering.

Responsibilities and qualifications
You will construct and work with a scale model in our laboratory using air at atmospheric pressure as media. The instantaneous concentration and velocity will be measured with high-speed cameras and laser illumination. You will analyze the resulting data to evaluate practical design ideas and to get fundamental insight to flow phenomena related to turbulent mixing. The project therefore also has an element of fundamental research. Finally you will collaborate with MAN Energy Solution on full scale measurements on their test engine.

You will be responsible for:

  • Construction of the experimental setup with support from our workshop and our technical staff
  • Adaption of measurement techniques for the experimental setup
  • Execution of measurements
  • Development of script-based programs for processing data
  • Analysis and interpretation of experimental results
  • Collaboration with engineers at MAN Energy Solution and with researchers at DTU
  • Writing scientific papers for international journals and conferences.

You should have experience with:

  • General fluid mechanics
  • Mechanical engineering design
  • Laboratory work, preferably with fluid mechanical measurements
  • Programming of script-based data processing with e.g. MATLAB or Python

Furthermore, organizational skills and experience with project management is an advantage.

Candidates should have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree.

Approval and Enrolment
The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide.

Assessment
The assessment of the applicants will be made by Associate professor Knud Erik Meyer in collaboration with other researcher at DTU Mechanical Engineering

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years.

You can read more about career paths at DTU here.

Further information
Further information may be obtained from Associate professor Knud Erik Meyer, e-mail: kem@mek.dtu.dk

You can read more about the Department of Mechanical Engineering at www.mek.dtu.dk

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark.

Application procedure
Your complete online application must be submitted no later than 5 February 2021 (Danish time).

Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply online", fill out the online application form, and attach all your materials in English in one PDF file. The file must include:

  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here)

Candidates may apply prior to obtaining their master's degree but cannot begin before having received it.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.

DTU Mechanical Engineering covers the fundamental engineering disciplines within Solid mechanics, Fluid mechanics, Coastal and Maritime Engineering, Energy systems and energy conversion, Materials and Surface Engineering, Manufacturing Engineering, Engineering design and Product development. The department has a scientific staff of about 135 persons, 100 PhD students and a technical/administrative support staff of about 80 persons.

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 12,000 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. Our main campus is in Kgs. Lyngby north of Copenhagen and we have campuses in Roskilde and Ballerup and in Sisimiut in Greenland.