PhD Position on Indirect Combustion Noise; Fluid Mechanics; CFD; Aeroacoustics at University of Twente

Summary

The University of Twente is offering a full-time PhD position focused on the simulation-based development of indirect combustion-noise theory, particularly as it relates to hydrogen-fueled systems. This project will utilize Computational Fluid Dynamics (CFD) to analyze vorticity, compositional, and entropy spots, aiming to extend existing analytical/semi-analytical modeling to hydrogen combustion. The role is ideal for an MSc graduate with a strong background in Fluid Mechanics looking to embark on an academic research career.

Designation

PhD Candidate

Key Information

Research Area

This PhD project will delve into the simulation-based development of indirect combustion-noise theory, with a specific focus on hydrogen-fueled systems. Key aspects include:

• Utilizing Computational Fluid Dynamics (CFD) for numerical analyses.
• Focusing on non-reacting and reacting flow modeling.
• Investigating the interplay between vorticity, compositional, and entropy spots on indirect noise.
• Extending analytical/semi-analytical modeling to hydrogen combustion.

Research Objectives:

1. CFD studies of vorticity inhomogeneities convected by a high-Reynolds-number flow through a choked nozzle under non-reactive simulations.
2. Non-reactive Euler/URANS/LES-simulation comparison of entropy-vorticity interaction with a choked nozzle.
3. Quantification of the effects of combustion on noise spectra.
4. Development of analytical/semi-analytical models.

Expected Results:

1. Understanding of vorticity/entropy interaction as a source of indirect noise.
2. Comparison with classic hydrocarbon configurations.
3. Development of an analytical model for indirect noise due to vorticity/entropy interactions.

Location

University of Twente, Drienerlolaan 5, 7522NB Enschede, Netherlands. The position also includes secondments to TU Delft (Netherlands) and ETH Zurich (Switzerland).

Eligibility/Qualification

Required Profile:

• MSc degree in (Applied) Physics, Applied Mathematics, Aerospace Engineering, Mechanical Engineering, or a related field with a demonstrable specialization in Fluid Mechanics.
• Very strong fundamentals in Fluid Mechanics, including theoretical frameworks and/or numerical methods & Computational Fluid Mechanics (CFD) best practices.
• Minimum level of English proficiency: C1 (CEFR) or equivalent.
• Demonstrated ability to produce cogent & concise scientific texts (academic writing skills).
• Ability to produce cogent oral presentations.

Preferred Qualifications:

• Authorship of a peer-reviewed publication in a pertinent journal or as a proceeding of a conference with standing is a plus.

Scholarship Description

This is a full-time PhD position for four years, offering a stimulating academic environment at the University of Twente. The successful candidate will contribute to cutting-edge research in fluid mechanics and aeroacoustics, with opportunities for international collaboration through secondments. The position includes a competitive salary and excellent benefits.

Our Offer Includes:

• A full-time position for four years, with an initial qualifier in the first year.
• Flexibility to work (partially) from home.
• Salary and associated conditions in accordance with the collective labor agreement for Dutch universities (CAO-NU).
• Gross monthly salary ranging from €3,204 (first year) to €4,051 (fourth year).
• Excellent benefits including an 8% holiday allowance and an 8.3% end-of-year bonus.
• Solid pension scheme.
• A minimum of 232 leave hours (based on a 38-hour formal workweek, with 96 extra leave hours annually for a 40-hour workweek).
• Free access to sports facilities on campus.
• Family-friendly institution offering parental leave (paid and unpaid).
• Use of a public transportation card for commuting and professional travel.

How to Apply

Interested candidates should submit their application via the ‘Apply now’ button on the official vacancy page. Please ensure your application includes:

1. A Cover Letter: (maximum 2 pages A4) Emphasizing your specific interest, qualifications, and motivations for applying for this position.
2. A Curriculum Vitae: Including a list of all courses attended and grades obtained, and, if applicable, a list of publications and references.

Application Process Steps:

1. Apply: Submit your CV and motivation letter online. You will receive a confirmation of receipt.
2. Selection: The selection committee will review your application, and you will receive a response within 2 weeks after the vacancy has closed.
3. 1st Interview: An introductory meeting (online or in-person). You may be asked to give a short presentation.
4. 2nd Interview: Further discussion on job content, skills, and talents.
5. The Offer: If successful, a suitable offer will be made. Screening may be required.

For more information regarding this position, you are welcome to contact Lionel Hirschberg at l.hirschberg@utwente.nl.

Last Date for Apply

23 October 2026

Apply Link

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