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PhD Position Experimental Multiphase Flow-Cavitation

Job description:

The primary objective of the NWO-sponsored AQUA program is to gain a better understanding of the effect of water quality on multiphase flow dynamics, in particular on cavitation and air lubrication for drag reduction. The participating universities and research institutes include Delft University of Technology, University of Twente (Physics of Fluids group), and Royal Netherlands Institute for Sea Research. At Delft University, we currently have 1 open PhD position related to cavitation research.

Background

Bubbly flows attenuate underwater sound and can reduce the friction drag of a ship, as a result of which less fuel is needed. Although the behavior of air bubbles in freshwater is known reasonably well, bubbles in saline seawater behave very differently. In this program, the researchers will compare the dynamics of bubbly flows in different types of water, varying from freshwater to natural seawater, to gain a better understanding of how bubbles can be used to manage friction, sound propagation and cavitation. The ultimate aim is to be able to predict how the water quality (gas and chemical content) influences drag reduction and cavitation hindrance.

Project description

The advertised position concerns an experimental research project on water quality effects on developed sheet cavitation dynamics and radiated noise. Sheet cavitation is a dominant type of cavitation on hydrofoils and marine propellers. The study will be conducted in the new and unique Delft Multiphase Flow lab which is operational since early 2021. The required infrastructure (high-speed imaging, tomographic particle image velocimetry) is available. Close collaboration with other projects in the AQUA research program is encouraged, as well as with other research groups working in the same discipline.

The total duration of this PhD project is 4 years, with a starting date no later than Dec. 31, 2022.

Requirements:

We are looking for enthusiastic researchers, who want to develop their know-how and experience in a challenging academic environment. In more specific terms:

The successful applicants are in the first 4 years after graduation (MSc) of their research career.

A degree in Mechanical Engineering, Maritime Technology, (Applied) Physics, Aeronautics, or equivalent degree with a clear focus on fluid mechanics is a prerequisite.

Experience in conducting experimental work is regarded as a strength.

A critical and inquisitive attitude with regard to results is expected, which translates into formulating new research questions.

Ability to function both in a team and independently.

Good communication skills, with a sound knowledge of the English language, and both oral and written proficiency.

Doing a PhD at TU Delft requires English proficiency at a certain level to ensure that the candidate is able to communicate and interact well, participate in English-taught Doctoral Education courses, and write scientific articles and a final thesis. For more details please check the Graduate Schools Admission Requirements.

Conditions of employment:

Fixed-term contract: 4 years.

Doctoral candidates will be offered a 4-year period of employment in principle, but in the form of 2 employment contracts. An initial 1,5 year contract with an official go/no go progress assessment within 15 months. Followed by an additional contract for the remaining 2,5 years assuming everything goes well and performance requirements are met.

Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities, increasing from € 2541 per month in the first year to € 3247 in the fourth year. As a PhD candidate you will be enrolled in the TU Delft Graduate School. The TU Delft Graduate School provides an inspiring research environment with an excellent team of supervisors, academic staff and a mentor. The Doctoral Education Programme is aimed at developing your transferable, discipline-related and research skills.

The TU Delft offers a customisable compensation package, discounts on health insurance and sport memberships, and a monthly work costs contribution. Flexible work schedules can be arranged. For international applicants we offer the Coming to Delft Service and Partner Career Advice to assist you with your relocation.

Employer：

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.

At TU Delft we embrace diversity as one of our core values and we actively engage to be a university where you feel at home and can flourish. We value different perspectives and qualities. We believe this makes our work more innovative, the TU Delft community more vibrant and the world more just. Together, we imagine, invent and create solutions using technology to have a positive impact on a global scale. That is why we invite you to apply. Your application will receive fair consideration.

Challenge. Change. Impact!

Department：

Faculty Mechanical, Maritime and Materials Engineering

The Faculty of 3mE carries out pioneering research, leading to new fundamental insights and challenging applications in the field of mechanical engineering. From large-scale energy storage, medical instruments, control technology and robotics to smart materials, nanoscale structures and autonomous ships. The foundations and results of this research are reflected in outstanding, contemporary education, inspiring students and PhD candidates to become socially engaged and responsible engineers and scientists. The faculty of 3mE is a dynamic and innovative faculty with an international scope and high-tech lab facilities. Research and education focus on the design, manufacture, application and modification of products, materials, processes and mechanical devices, contributing to the development and growth of a sustainable society, as well as prosperity and welfare.

Click here to go to the website of the Faculty of Mechanical, Maritime and Materials Engineering. Do you want to experience working at our faculty? This video will introduce you to some of our researchers and their work.

Additional information：

The projects are hosted by the Faculty of Mechanical, Maritime and Materials Engineering (3mE), in particular by the groups of Fluid Mechanics (prof.dr.ir. J. Westerweel), Ship Hydromechanics (prof.dr.ir. T. van Terwisga) and Multiphase Systems (prof.dr.ir. C. Poelma). These groups have an ongoing, strong collaborative relationship.

Closing date for applications:

14.09.2022


申请网页：
https://www.tudelft.nl/over-tu-delft/werken-bij-tu-delft/vacatures/apply/?jobId=PTYFK026203F3VBQBLO6G68AI-7987&langCode=en_GB#apply