PhD position in Multiphysics simulation and Optimization of the Gas Atomization Process - DTU Construct

Jobbeskrivelse

If you are eager to kick-start your scientific career and explore the cutting edge of advanced manufacturing processes, advanced simulation and gas atomization, this opportunity is for you. At DTU, you will work at the forefront of the gas atomization process, looking into the physics of droplet atomization and its subsequent breakups and solidification.

Applications are invited for a 3-year Ph.D. position within the field of multiphysics simulation of gas atomization.

The project considers the application of advanced simulation toolboxes for simulating the primary and secondary breakup during the gas atomization process, while accounting for flow compressibility, large eddies simulation, as well as shock wave formation and its impact on droplet formation. This, among others, includes the coupling of Eulerian and Lagrangian simulation frameworks. The project includes process optimization for obtaining a targeted particle size distribution (PSD) using the developed simulations.

Responsibilities and qualifications

The first objective of the project is to develop an advanced multiphysics simulation of gas atomization while accounting for detailed turbulence behaviour, shock wave formation, and ultimately, mutual coupling of particle motion to the gaseous and dense fluid flows.

You will be responsible for validating the developed simulation tool against dedicated experimental tests to be done in the project. Then, the validated simulation tool should be implemented for optimizing the process conditions as well as the nozzle design for achieving a targeted particle size distribution (PSD).

In addition to the direct project-related research, you will conduct some teaching-related activities, disseminate your research through publication of papers in high-ranking journals and attend conferences and internationalize through a research stay abroad.

We envision that:

• You have an open mind and can think creatively in a computational fluid dynamics (CFD) context.
• You have a strong background in general heat transfer and fluid dynamics,
• You are eager to elaborate on the newest research results, improve the ideas and test them by implementation.
• You have experience with finite volume (FVM) based commercial or open source software packages e.g. OpenFOAM, ANSYS, Flow-3D.
• Proven experience with coding such as MATLAB, Python or similar tools and compiling user subroutines
• You are familiar with production processes of metals and alloys.

Furthermore, it is an additional advantage if you have:

• Knowledge of two-phase flows and compressible flows.
• Experience with the discrete element method or Lagrangian particle tracking methods
• You have experience with optimization methods.

We offer

DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and terms of employment

The appointment will be based on the collective agreement with the Confederation of Professional Associations. The allowance will be agreed upon with the relevant union.

The period of employment is 36 months, with start date of 1 February 2026 or according to mutual agreement.

Further information

Further information may be obtained from Professor Jesper Henri Hattel (jhat@dtu.dk) or Associate Professor Mohamad Bayat (mbayat@dtu.dk).

You can read more about Department of Civil and Mechanical Engineering at www.construct.dtu.dk.

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark.

Application procedure

Your complete online application must be submitted no later than 1 December 2025 (23:59 Danish time). Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply now", fill out the online application form, and attach all your materials in English in one PDF file. The file must include:

• Application (cover letter)
• CV
• Academic Diplomas (MSc)

Applications received after the deadline will not be considered.

All interested candidates irrespective of age, gender, disability, race, religion or ethnic background are encouraged to apply. As DTU works with research in critical technology, which is subject to special rules for security and export control, open-source background checks may be conducted on qualified candidates for the position.