PhD Position; Experimental Air-Knife Turbulent Jet Impingement Liquid Zinc Surface

Job description

A 4‑year PhD position is available in the research group of Prof. Dr. Sasa Kenjeres at the Department of Chemical Engineering, Delft University of Technology (TU Delft), The Netherlands.

A common method to protect steel against corrosion is the application of a protective zinc layer. This process is called galvanizing. Tata Steel Netherlands currently produces over half a million tons of galvanized steel per year, all of which is produced via the hot‑dip galvanizing process. In hot‑dip galvanizing, air knives blow a high‑velocity gas jet onto a steel strip to control the thickness of the zinc layer.

The interaction between the turbulent air jet and the liquid zinc is a potential cause of coating irregularities (waviness) and rejection of the final product. In this project, we will apply combined experimental, theoretical, and computer simulation studies to bring detailed insight into the dynamics of the interactions between the air‑jet and the solidifying liquid zinc. A better understanding of these interactions will open new ways to eliminate observed imperfections.

You will focus on the experimental part of the project, which involves the construction and build‑up of experimental setups, as well as performing state‑of‑the‑art measurements (PIV-based) of the multi‑phase flows. This project is part of the Holland High Tech program, and you will closely collaborate with our industrial partners (M2i, Tata Steel).

• An MSc in a relevant subject, such as Applied Physics, Chemical Engineering, Mechanical Engineering, Aerospace Engineering, or a related field
• Proven experience with experimental techniques (previous experience with PIV is a must)
• A keen interest in interdisciplinary, curiosity‑driven, and applied research
• Fluency in English and enjoyment of working in an international research environment
• A team‑working mentality, as well as the capability to work efficiently individually
• Excellent communication skills

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 €3059–€3881 gross per month, from the first year to the fourth year based on a full‑time contract (38 hours), plus 8% holiday allowance and an end‑of‑year bonus of 8.3%.

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 a monthly work costs contribution. Flexible work schedules can be arranged.

TU Delft is committed to make your move as smooth as possible! The HR unit, Coming to Delft Service, offers information on their website to help you prepare your relocation. In addition, Coming to Delft Service organises events to help you settle in the Netherlands, and expand your (social) network in Delft. A Dual Career Programme is available, to support your accompanying partner with their job search in the Netherlands.

If you would like more information about this vacancy or the selection procedure, please contact Prof. dr. Sasa Kenjeres, Dipl.

Ing., via s.kenjeres.