Name: Reducing resistance - Air lubrication and propellor efficiency
Start: 2024-04-03T18:30:00
End: 2024-04-03T21:30:00
Location: Delft University of Technology

Location: Delft University of Technology – ME Faculty – Lecture room D, Mekelweg 2, 2628 CD Delft , The Netherlands

Speakers:

Sasha (Oleksandr) Zverkhovskyi, Design and Development engineer, Damen Shipyards
Bart Schuiling, Senior Researcher, MARIN
Maarten Kerkvliet, Senior Researcher, MARIN

Air lubrication
Reducing the ship's resistance lowers fuel/energy consumption and emissions. The Damen Air Cavity System (DACS) works by forming stable air cavities on the flat bottom of a ship. This innovative approach reduces the wetted area and, consequently, lowers the ship's resistance. The concept, originating from a research project at Delft University of Technology (TU Delft) in the Netherlands, demonstrates high overall efficiency, contributing significantly to the reduction of fuel consumption and emissions. The presentation will delve into the theoretical background, share experimental results from laboratory tests, and highlight outcomes from the full-scale application.

Propellor resistance

Maarten Kerkvliet and Bart Schuiling conducted a long study to solve the problem of laminar boundary layers on propellors. This might sound as a minor detail but could have impressive consequences for computer models. The MARIN colleagues reinvented an Experimental Fluid Dynamics (EFD) method to visualise propeller boundary layer flow. To do this they used paint, refined Computational Fluid Dynamics (CFD) simulations, and developed an innovative approach to stimulate turbulence in propeller models. These advancements are not just academic; they promise practical improvements in maritime model testing. Maarten and Bart’s talk will shed light on intricacies of this groundbreaking method and its far-reaching implications for the maritime industry.

Booking:

Free for IMarEST members and (PhD) students

Note that we kindly ask a small contribution to the (refreshments and other) costs of 5 euro’s per person from non-members of the IMarEST.