Phd Position Dns of Electrochemical Bubbles

3 dagen geleden

Delft, Nederland TU Delft Voltijd

**PhD Position DNS of Electrochemical Bubbles - Bubble Detachment in Micro-Structured Electrodes**:
**_Challenge: Design new electrodes to improve hydrogen production._**

**_Change: Use Direct Numerical Simulations of bubbles detachment._**

**_Impact: Advance our knowledge of bubble detachment dynamics._**

**Job description**:
In the transition to a green economy, hydrogen is called to play a central role to decarbonize hard-to-abate sectors. To this aim, water electrolysis is the key technology enabling the conversion of (green) electricity into hydrogen. However, this pivotal process still suffers from low efficiencies due to the sub-optimal bubble release from the electrodes, which block the reaction sites. Our long term vision is to design advanced electrode geometries that optimize bubble release. In this project we want to develop new numerical techniques to simulate bubble detachment from gas-evolving electrodes in order to advance our understanding of how fluid mechanics, mass, heat and charge transfer impact the overall process performance.

You will work with Dr. Nicolas Valle within the faculty of Mechanical Engineering.

You primary task will be to develop and implement **new numerical methods** for bubble detachment dynamics on top of an existing, parallel, hybrid (CPU/GPU), computational physics code. The physical phenomena include dynamic contact angle, mass transport, phase change and chemical kinetics. You will get support from the Dutch supercomputer centre for the computational aspects.

With these methods, you will perform high fidelity simulations of single bubble detachment. After validation, you will perform flow topology analysis to characterize the influence of the physical parameters into this process and to assess the impact of bubble detachment in electrode performance.

Finally, you will extend the analysis to patterned geometries. Starting from simplified cases, you will perform an _a priory_ assessment of the most promising patterns for gas-evolving electrodes.

**Job requirements**:
**Requirements**:

- MSc in Mechanical/Aerospace/Maritime/Chemical Engineering, Physics, Applied Mathematics, or a related discipline.
- A bottom-up approach to research.
- Proven* track record in numerical methods.
- Proven* track record in fluid mechanics.
- Proven* programming skills in C/C++/Fortran.
- Experience* in Finite Volume or Finite Difference methods is a plus.
- Experience* in VoF, Level Set, Phase Field or similar methods is a plus.
- Experience* in parallel computing (MPI/OpenMP/CUDA) is a plus.
- Please indicate in your motivation letter how you fulfil these requirements or, if not, how do you plan to cover those.

***TU Delft (Delft University of Technology)**:
Delft University of Technology is built on strong foundations. As creators of the world-famous Dutch waterworks and pioneers in biotech, TU Delft is a top international university combining science, engineering and design. It delivers world class results in education, research and innovation to address challenges in the areas of energy, climate, mobility, health and digital society. For generations, our engineers have proven to be entrepreneurial problem-solvers, both in business and in a social context.

Challenge. Change. Impact

**Faculty Mechanical Engineering**:
ME is a dynamic and innovative faculty with high-tech lab facilities and international reach. It’s a large faculty but also versatile, so we can often make unique connections by combining different disciplines. This is reflected in ME’s outstanding, state-of-the-art education, which trains students to become responsible and socially engaged engineers and scientists. We translate our knowledge and insights into solutions to societal issues, contributing to a sustainable society and to the development of prosperity and well-being. That is what unites us in pioneering research, inspiring education and (inter)national cooperation.
- Do you want to experience working at our faculty? These videos will introduce you to some of our researchers and their work.

**Conditions of employment**:
The TU Delft offers a customisable compensation package, discounts on health insurance, and a monthly work costs contribution. Flexible work schedules can be arranged.

For international applicants, TU Delft has the Coming to Delft Service. This service provides information for new international employees to help you prepare the relocation and to settle in the Netherlands. The Coming to Delft Service offers a Dual Career Programme for partners and they organise events to expand your (social) network.

**Additional information**:
**Application procedure**:

- Your CV and a **1 page** motivation letter explaining how your interest align with the project, and how your previous experience covers the requirements of the position, and in which aspects you would like to develop yourself.
- Please refer to courses, student (or personal) projects, work experience, or any others, to p

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