Rocket Engine Flow Simulation Engineer

1w1 week ago

POLARIS Raumflugzeuge GmbH

Bremen, DE · Full-time · €65,000 – €90,000

About this role

POLARIS Raumflugzeuge GmbH develops innovative transportation systems that redefine access to space for payloads and passengers. With 70 dedicated colleagues working at two locations, we are expanding our team. We seek a Rocket Engine Flow Simulation Engineer to advance our vision.

You will perform CFD simulations for liquid rocket engines, focusing on hot gas flow and cooling channel analyses. Analyze combustion flows, conjugated heat transfer, pressure losses, and flow instabilities. Simulate regenerative cooling systems and assess thermal loads.

Support the design of combustion chambers, nozzles, and cooling structures through numerical analysis. Couple CFD results with thermal and structural analyses. Work closely with design, systems, test, and manufacturing teams.

Validate and calibrate CFD models using experimental and test data. Conduct trade studies to optimize performance, efficiency, and thermal margins. Document models, assumptions, results, and design recommendations.

Join us in shaping the future of space transportation and making a positive impact. Document your relevant experience in your application to show why you are the ideal candidate.

Requirements

Degree in Space Engineering, Aerospace Engineering (M.Sc.) or similar
Minimum of 2 years of full-time experience
Strong background in CFD, particularly for compressible flow, supersonic flow, hot gas flow conjugated heat transfer, cryogenic flow, reactive flows in rocket engines
Profound understanding of fluid dynamics, thermodynamics, and heat transfer
Profound understanding of cooling channel design
Proactive thinking, high level of motivation, flexibility, and team-working skills
Proficiency in both German and English

Responsibilities

Perform CFD simulations for liquid rocket engines with a focus on hot gas flow and cooling channel analyses
Analyze combustion flows, conjugated heat transfer (CHT), pressure losses, and flow instabilities
Simulate regenerative cooling systems and assess thermal loads
Support the design of combustion chambers, nozzles, and cooling structures through numerical analysis
Couple CFD results with thermal and structural analyses
Validate and calibrate CFD models using experimental and test data
Conduct trade studies to optimize performance, efficiency, and thermal margins
Work closely with design, systems, test, and manufacturing teams