Guest Lecture: Sebastian Schreier -TU Delft Sebastian works on experimental investigation of fluid structure interaction on various time and length scales. These scales range from Ultra Large Floating Structures in waves with length of several hundred meters to kilometers and time scales of seconds to sloshing and slamming impacts on length scales of millimeters and time scales of microseconds. The focus of these investigations is on the fluid flow and the influence of the structural response on the hydrodynamic loads. Analytical and semi-analytical models are employed. The main research method are physical experiments in the test facilities including the towing tanks with wavemakers as well as a dedicated sloshing test rig. Main quantities of interest are integral forces on and deformations of the structures as well as pressure and velocity fields in the fluid. Sebastian's experimental work includes the development of test setups as well as sensors and measurement techniques. He currently works on pressure sensor clusters to increase the spatial resolution of pressure measurements as well as the introduction of Particle Image Velocimetry (PIV) as a standard tool in the towing tank. Biografie Sebastian graduated from the University of Rostock, Germany with a diploma in Mechanical Engineering and specialization in Naval Architecture and Ocean Engineering in 2005. He then started his research work on liquid sloshing at the Chair of Ocean Engineering at the University of Rostock where he obtained his doctoral degree in Engineering from the Faculty of Mechanical Engineering and Marine Technology in 2009. From 2009 to 2010 Sebastian spent a year as Post-doctoral Fellow in the Global Center of Excellence program on Aquaculture of Bluefin Tuna and other Cultured Fish at Kinki University, Nara, Japan where he investigated the flow around net-cages. After this year he returned to the Chair of Ocean Engineering at the University of Rostock as Senior Research Assistant to continue his experimental research of liquid sloshing in tanks as well as to teach bachelor and master courses on several subjects in Ocean Engineering. In October 2016 Sebastian joined TU Delft as Assistant Professor in Ship Hydromechanics.

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The course aims to provide modelling and technological insights on large floating structures exposed to Ocean climate. The course will mainly deal with the study of hydrodynamics and the loads acting on large floating bodies. In particular, bost rigid bodies and flexible bodies will be deepened. In the beginning an introduction will be conducted on the theory of this modelling mainly based on the investigation of fluid-structure interaction. The second module of the course will be focused on the experimental investigation and techniques to characterize fluid structure interaction on various time and length scales. These scales range from Ultra Large Floating Structures in waves with length of several hundred meters to kilometres and time scales of seconds to sloshing and slamming impacts on length scales of millimetres and time scales of microseconds. The focus of these investigations is on the fluid flow and the influence of the structural response on the hydrodynamic loads. Analytical and semi-analytical models are employed. The main research method are physical experiments in the test facilities including the towing tanks with wavemakers as well as a dedicated sloshing test rig. Main quantities of interest are integral forces on and deformations of the structures as well as pressure and velocity fields in the fluid.

In presenza

Presentazione orale

P.D.2-2 - Settembre

26 September: • Introduction to floating cities, history, applications • Hydrodynamic modelling state of the art • Mooring systems • Ecology aspects • Environmental load conditions (Wind, waves, and Currents) • Metocean data analysis 27 September: • Design considerations and guidelines • Construction and installation aspects • Introduction to the project 28 September: • Project tutoring 29 September: • Project presentation Venue: AULA 1M https://www.polito.it/ateneo/chi-siamo/sedi-e-mappe?sellocale=bl_id%3DTO_CIT02%26fl_id%3DXPTE%26rm_id%3D007&lang=it