Naval Architecture and Hydrodynamics Research Group

SCC is home to TalTech Naval Architecture and Hydrodynamics Research Group led by Professor Mihkel Kõrgesaar.

Research focuses on the behaviour of small crafts, ships and marine structures in normal and extreme environments. Our driving motivation is to enable better, safer, and more energy-efficient future ship concepts that serve societal and industrial needs.

Hydrodynamics

The group’s first field of research is Hydrodynamics and Fluid-structure interaction. The goal here is to increase the energy efficiency and to improve the behavior of watercraft in different operational conditions.

The research is supported by the competence centre infrastructure that connects the possibilities of a towing tank and computer simulations. The SCC research infrastructure enables scientists to emulate weather conditions and accidents and to investigate ship behaviour in various situations and operational conditions.

Ship Structures

In the field of ship structures, novel computational methods are studied and created to evaluate the behaviour of ship structures at accidental and ultimate limit states. Such knowledge is especially important for assessing risks linked to collision and grounding accidents. The traditional simplified methods used in shipbuilding do not include all relevant factors. An effective computational method is a user-friendly tool that allows justified simplifications to quickly design big and complex structures. It is the job of scientists to define the scope of the simplifications.

The main research methods in the study of ship structures are material tests and numerical simulations. Computer simulations provide an overview of the processes at work in materials and constructions while experimental tests are used to validate hypotheses and discover new deformation and fracture mechanisms.

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Naval Architecture and Hydrodynamics Research group

Support

Open Access Research Publications

• Teguh Putranto, Mihkel Kõrgesaar, Kristjan Tabri; Application of Equivalent Single Layer Approach for Ultimate Strength Analyses of Ship Hull Girder; Journal of Marine Science and Engineering, 2022.
• Teguh Putranto, Mihkel Kõrgesaar, Jasmin Jelovicab; Ultimate strength assessment of stiffened panels using Equivalent Single Layer approach under combined in-plane compression and shear; Thin-Walled Structures, 2022. 
• Mikk-Markus Imala, Hendrik Naar, Kristjan Tabri, Jani Romanoff; Toward the application of the layer-wise displacement theory in passenger ships—a quasi-static response; Mechanics of Advanced Materials and Structures, 2022. 
• Mikloš Lakatoš, Tarmo Sahk, Henrik Andreasson, Kristjan Tabri; The effect of spray rails, chine strips and V-shaped spray interceptors on the performance of low planing high-speed craft in calm water; Applied Ocean Research, Volume 122, 2022.
• Martin Bergström, Thomas Browne, Sören Ehlers, Inari Helle, Hauke Herrnring,Faisal Khan, Jan Kubiczek, Pentti Kujala, Mihkel Kõrgesaar, Bernt Johan Leira, Tuuli Parviainen, Arttu Polojärvi, Mikko Suominen, Rocky Taylor, Jukka Tuhkuri, Jarno Vanhatalo, Brian Veitch; A comprehensive approach to scenario-based risk management for Arctic waters; Ship Technology Research, 2022.
• Saeed Hosseinzadeh, Kristjan Tabri; Free-fall water entry of a variable deadrise angle aluminum wedge: an experimental study; MARSTRUCT 2021, 8th International Conference on Marine Structures.
• Sang Jin Kim, Mihkel Kõrgesaar, Nima Ahmadi, Ghalib Taimuri, Pentti Kujala, Spyros Hirdaris; The influence of fluid structure interaction modelling on the dynamic response of ships subject to collision and grounding; Marine Structures, Volume 75, 2021.
• Fang Li, Mihkel Kõrgesaar, Pentti Kujala, Floris Goerlandt; Finite element based meta-modeling of ship-ice interaction at shoulder and midship areas for ship performance simulation; Marine Structures, Volume 71, 2020.
• Mikloš Lakatoš, Kristjan Tabri, Abbas Dashtimanesh, Henrik Andreasson; Numerical Modelling of a Planing Craft with a V-Shaped Spray Interceptor Arrangement in Calm Water; 12th Symposium on High Speed Marine Vehicles, October 2020.
• Mikloš Lakatoš, Tarmo Sahk, Henrik Andreasson, Kristjan Tabri; Resistance Tests of a Series of Chine Interceptors on a Planing Craft; High Speed Vessels, July 2020.
• Mihkel Kõrgesaar; The effect of low stress triaxialities and deformation paths on ductile fracture simulations of large shell structures; Marine Structures, Volume 63, 2019.

Research Group News

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