Siemens Energy

A Snapshot of Your Day

You will be part of the Fluid Dynamic Lab team as Master Student. We are offering four positions that will experimentally investigate the effect of additively manufactured (AM) induced roughness on the heat transfer, pressure loss and the flow field. In the fluid dynamics lab, four methods have been developed and verified that are suitable for these studies -the Joule Heat Transfer method (JHT), the Joule Heat Transfer Liquid method (JHTh2o), the Surface Roughness Heat Transfer method (SRHT) and the Particle Image Velocimetry method (PIV)

The JHT and JHTh2o methods use similar experimental approaches to determine the thermal performance of additively manufactured test objects with varying internal geometries. The test object will be insulated and heated with a high current. Subsequently, the internal geometry will be exposed to air/water flow at a constant temperature and mass flow rate. By measuring temperatures and pressures before and after the test object, as well as the mass flow, the test object's surface temperature and the power consumption, it is possible to evaluate the Darcy friction factor and the Nusselt number as functions of the Reynolds number and Prandtl number. StarCCM is used to calculate the heat generation, from the high current passed through the test object, and the resulting temperature distribution. An external script governs StarCCM and modifies the friction factor and the internal heat transfer coefficient until the energy balance, mass flow and the media’s outlet temperature corresponds to the measured ones.

The SRHT method examines local heat transfer on upscaled AM surfaces. This yields the opportunity to study the effects of different surface parameters related to AM roughness. At the beginning of the test, the test coupons are at a known uniform temperature and are subjected to a sudden step change in flow temperature. The time-resolved surface temperature will be measured using an IR camera. By assuming local constant values of the heat transfer coefficient over time, the heat equation will be solved using an in-house conjugate FEM solver.

The PIV rig uses the same upscaled AM surface test coupons as the SRHT method. A powerful pulsed laser and a high-speed camera are utilized to observe the roughness's effect on the boundary layer velocity profile and connect this to the friction losses experienced for AM geometries.

The projects are performed at our lab facilities for the duration of 7 months with start in October 2026.

How You’ll Make an Impact

The master thesis project is well structured, and you will have an experienced supervisor. The project plan usually follows the points below:

• Literature review
• Test rig preparation for testing
• Perform testing
• Analysis of test results
• Apply changes on the test rig, test procedure or analysis to improve the results
• Final report/presentation writing

During the thesis you will acquire improved skills in dimensional analysis, data acquisition, heat transfer calculation and mass flow/pressure/temperature measurements. Basic knowledge in additive manufacturing will be obtained. An assigned experienced supervisor will support you during the whole period. The goal of each of our Diploma Thesis’ is to create a work result that it might be worth publication and some examples of previous student projects from the lab can be found in the Journal of Turbomachinery, ASME Turbo Expo and International Journal of Heat and Mass Transfer (TURBO-14-1171, GT2014-25619, GT2015-42475, GT2017-64143, GT2018-75019, DOI:10.1016/j.ijheatmasstransfer.2024.125532).

What You Bring

Your profile should show:

• Courses on:
  • gas fluid dynamics
  • heat transfer
  • dimensional similarity
  • numerical methods
• Knowledge in Matlab/Python.
• Fluency in English language are required both in speech and writing.
• It is appreciated if you have had laboratory testing experience

About the Team

The Measurement and Component Testing team is composed of highly experienced and knowledgeable test technology engineers and measurement technology engineers. We are around 20 team members, and we have four labs where we perform prototype design validation. We are part of the R&D department at Siemens Energy AB in Finspång and therefore our test measurements and methods are always evolving to meet new design validation demands and new technology developments. We are responsible for validation of both full engine prototypes as component prototyping.

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.

Who is Siemens Energy?

At Siemens Energy, we are more than just an energy technology company. With ~100,000 dedicated employees in more than 90 countries, we develop the energy systems of the future, ensuring that the growing energy demand of the global community is met reliably and sustainably. The technologies created in our research departments and factories drive the energy transition and provide the base for one sixth of the world's electricity generation. 

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 Apply Button, id nr 294441 no later than 2026-05-11.

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

For questions about the role, please contact the supervisor Mats Kinell on mats.kinell@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:
Unionen, unionen.finspang.se@siemens-energy.com
Sveriges Ingenjörer & SACO, asi.se@siemens-energy.com
Ledarna, Anders Fors, anders.fors@siemens-energy.com
IF Metall, Mikael Malmgren, mikael.malmgren@siemens-energy.com

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