Doctoral student in Rocket propulsion and reactive flows KTH Royal Institute of Technology in Sweden

This doctoral position at KTH Royal Institute of Technology offers a unique opportunity to contribute to the advancement of reusable space propulsion systems. The research focuses on rocket nozzle cooling channels for methane/oxygen (methalox) engines, addressing the challenges of catalytic pyrolysis and carbon deposition that impact heat transfer and component longevity. The project aims to develop predictive maintenance methods and health-aware operational strategies, supporting faster refurbishment and reduced risk in reusable launchers.

The candidate will conduct experiments and modeling to investigate how fuel composition and surface conditions affect deposit formation and thermal resistance. Insights gained will be translated into monitoring indicators and operational strategies, with the research leveraging the MERiT/MERiT+ infrastructure at KTH and close collaboration with GKN Aerospace. The project is funded by the Swedish Space Research School (SSRS) and the Swedish Space Agency, ensuring robust support and resources.

Supervision will be provided by Dr. Jens Fridh, with decisions on admission made according to KTH's procedures. The position is full-time, temporary, and offers a monthly salary in line with KTH's doctoral student salary agreement. Employment is for up to four years, with renewal possible after the first year. Doctoral students at KTH benefit from a creative and dynamic environment, attractive benefits, and a strong commitment to equality, diversity, and sustainability.

Eligibility requires a second cycle degree (such as a master's) or equivalent, or at least 240 higher education credits with 60 at second-cycle level. English proficiency equivalent to English B/6 is mandatory. Experience in experimental work in fluid mechanics, heat transfer, or reactive flows is advantageous. Selection emphasizes personal skills, including independence, collaboration, professionalism, and analytical ability. Applicants must submit diplomas, grades, proof of language proficiency, certified translations if necessary, CV, and a motivation letter outlining academic interests and goals.

Applications are accepted via KTH's recruitment system and must be complete and received by the deadline. Security clearance may be required for certain positions. The university firmly declines contact from recruitment agencies. KTH is a leading international technical university, offering opportunities for growth and development in a supportive academic environment.

For further information, contact Dr. Jens Fridh ([email protected]) or Taras Koturbash ([email protected]). The application deadline is May 27, 2026.