Siemens Energy

Master Thesis: Investigating Disc Cavity Sealing Efficiency Using CFD

A Snapshot of Your Day

A gas turbine comprises numerous stationary and rotary components, including rotor discs. The cavity between each disc and its adjacent stationary component must be sealed to prevent hot gas from the main flow channel from entering. This sealing is crucial for the engine’s performance and longevity. Designing efficient seal geometries and purging the cavity with the secondary air system are essential for this purpose.

Recently, we conducted a test campaign on our research test turbine at KTH University, where the disc cavity was purged using Argon. Your primary task will be to carry out the second phase of this campaign by performing steady-state and transient CFD simulations and comparing the results against the test data. Throughout the project, you will utilize both in-house and commercial tools.

How You’ll Make an Impact

• Investigate and review previous studies related to this project.
• Prepare geometry models using NX CAD and in-house tools.
• Perform steady-state and unsteady CFD simulations in StarCCM+/CFX.
• Compare the results against available test data and prepare a comprehensive report.

What You Bring

• Currently pursuing a MSc in Mechanical Engineering with a focus on flow physics.
• Strong understanding of fluid dynamics, boundary layer theory, and Computational Fluid Dynamics (CFD).
• Structured and effective communicator.
• Ability to independently find solutions to challenges and problems

About the Team

We are a group responsible for Aerodynamics, Heat transfer and Secondary air system in the turbine. We do R&D work in development and upgrade projects, support customers workshop and sales, solve issues and develop tools and technologies within our area of responsibility.

In our Industrial Applications division, we offer comprehensive digital portfolio solutions in the oil and gas sector and other process industries comprising rotating equipment, electrification and solutions for Subsea business. Our customers are supported with sustainable and mission-critical products, solutions, and services.

Our Gas Services division offers Low-emission power generation through service and decarbonization. Zero or low emission power generation and all gas turbines under one roof, steam turbines and generators. Decarbonization opportunities through service offerings, modernization, and digitalization of the fleet.

We can offer you employment benefits such as: reduction of working hours, advance vacation, health care allowance and an eventual possibility to a flexible working place.

Who is Siemens Energy?

At Siemens Energy, we are more than just an energy technology company. We meet the growing energy demand across 90+ countries while ensuring our climate is protected. With more than 99,000 dedicated employees, we not only generate electricity for over 16% of the global community, but we’re also using our technology to help protect people and the environment.

Our global team is committed to making sustainable, reliable, and affordable energy a reality by pushing the boundaries of what is possible. We uphold a 150-year legacy of innovation that encourages our search for people who will support our focus on decarbonization, new technologies, and energy transformation.

Find out how you can make a difference at Siemens Energy: https://www.siemens-energy.com/employeevideo

Our Commitment to Diversity

Lucky for us, we are not all the same. Through diversity, we generate power. We run on inclusion and our combined creative energy is fueled by over 130 nationalities. Siemens Energy celebrates character – no matter what ethnic background, gender, age, religion, identity, or disability. We energize society, all of society, and we do not discriminate based on our differences.

Application

Don’t hesitate – apply via https://jobs.siemens-energy.com/en_US/jobs , id nr 265013 no later than 2024-11-01.

Ongoing selection is applied, the role might be filled before last application date.

For questions about the role, please contact Navid Mikaillian on navid.mikaillian@siemens-energy.com

For questions about the recruitment process please contact the responsible recruiter Ermina Imamovic on ermina.imamovic.ext@siemens-energy.com

We refrain from all contact with staffing and recruitment companies, or advertising brokers.

Location: Finspång

Trade Union Representatives:
Anders Häll, Unionen, +46122-887514
Simon Von Eckardstein, Sveriges Ingenjörer, +46122-842 24
Jan Lundgren, Ledarna, +46122-812 33
Mikael Malmgren, IF Metall, +4676-6958685

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