Researcher in temperature measurements of two-phase flows

Lund University, Faculty of Engineering, LTH, Department of Physics

Lund University was founded in 1666 and is repeatedly ranked among the world’s top universities. The University has around 47 000 students and more than 8 800 staff based in Lund, Helsingborg and Malmö. We are united in our efforts to understand, explain and improve our world and the human condition.

Lund University welcomes applicants with diverse backgrounds and experiences. We regard gender equality and diversity as a strength and an asset.

The Division of Combustion Physics is well-established and internationally recognized for excellence in the measurement and development of combustion applications related to ground and aerospace combustion engines and energy production. The Department of Physics conducts a wide array of research, together with other departments within the Faculty of Engineering. Our research facility was built in 2001 and currently supports the work of around 50 researchers. www.forbrf.lth.se/english/

Subject description

The proposed research work consists in determining the temperature field of two-phase flow systems by means of advanced imaging and laser-based diagnostic techniques. Two types of flows will be investigated:

The combustion of metal particles
The evaporation of heated droplets from atomizing sprays

Work duties

In this research work the temperature field of two-phase flow systems will be investigated including the combustion of metal particles and the evaporation of heated droplets from atomizing sprays. For the measurement of liquid temperature in atomizing sprays, a method that combines two-color LIF thermometry together with Structured Laser Illumination Planar Imaging (SLIPI) will be used. This work will focus on deducing the precision and accuracy of the 2D temperature measurements and applying the
approach for spray drying applications. For the combusting metal particles, various approaches involving the detection of spectral bands of the black body radiation will be tested and applied using double-frame sCMOS and/or high-speed cameras. For the case of highly seeded metal particles, the SLIPI technique will also be tested and applied to
analyze the particle flow. Both macroscopic imaging (viewed areas in the order of ~5 cm) and microscopic imaging (viewed areas in the order of ~5 mm) will be used during this project.

Detailed description of the work duties:

Research within the subject area
Supervision of degree projects and doctoral students
Collaboration with industry and wider society
Administration related to the work duties listed above

Qualification requirements

Applicants must have:

A PhD within the subject of the position.
Very good oral and written proficiency in English.
Extensive knowledge on temperature measurements of particles/droplets using laser based diagnostics.
Ability to independently design and carry out experimental research projects related to two-phase flow systems.
A broad competence profile and knowledge in heat transfer and fluid mechanics is important for this project.
A good ability to develop and conduct high quality research.

Assessment criteria and other qualifications

Extensive experience on temperature measurements involving temperature sensitive dyes.
Extensive experience on laser diagnostic techniques.
Experience in laboratory work related to two-phase flows.
Strong skills in programming and image analysis.
Journal publications in the field.

Consideration will also be given to good collaborative skills, drive and independence, and how the applicant’s experience and skills complement and strengthen ongoing research within the department, and how they stand to contribute to its future development.

Terms of employment

Fixed-term employment for 6 months, fulltime.

Instructions on how to apply

Applications shall be written in English and contain:

Résumé/CV, including a list of publications,
A general description of past research and future research interests (no more than three pages),
Contact information of at least two references,
Copy of the doctoral degree certificate, and other certificates/grades that you wish to be considered.

LTH is Lund University’s Faculty of Engineering. At LTH we educate people, build knowledge for the future and work hard for the development of society. We create space for brilliant research and inspire creative advancements in technology, architecture and design. We have nearly 10,000 students. Every year, our researchers – many of whom work in world-leading profile areas – publish around 100 theses and 2 000 scientific findings. In addition, many of our research and degree projects are transformed into innovations. Together we explore and create – to benefit the world.

The Department of Physics is with a staff of about 400 scientists and educators one of the largest departments within Lund University. There are seven research divisions and a number of research centra within the department. The research activities at the department cover a broad spectrum of modern physics. www.fysik.lu.se/english.