Blar i NTNU Open på forfatter "Martin, Tobias"
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A numerical framework for modelling the dynamics of open ocean aquaculture structures in viscous fluids
Martin, Tobias; Tsarau, Andrei; Bihs, Hans (Peer reviewed; Journal article, 2020)This paper presents a complete numerical framework for modelling open ocean aquaculture structures in waves and current using Computational Fluid Dynamics (CFD). A structural dynamics model is incorporated to account for ... -
Numerical Modeling of the Interaction of Moving Fish Nets and Fluid
Martin, Tobias; Wang, Gang; Bihs, Hans (Peer reviewed; Journal article, 2022)The significant difference in length scales between the flow around a moving fish net and the flow around each twine of the net prevents the resolution of the complete structure within a discrete fluid domain. In this ... -
Numerical Modelling for Fluid-Structure Interaction of Aquaculture Collar Structures using a Beam Model
Lim, Sungsoo (Master thesis, 2019)I denne oppgaven brukes en 3-dimensjonal strålemodell for fiske merd strukturen, og Newmark-metoden er vedtatt for tidintegrasjon av strukturell dynamisk analyse. For å verifisere og validere strukturløsningen utviklet i ... -
Numerical modelling of the interaction between a fish net and fluid using CFD
Martin, Tobias; Kamath, Arun; Bihs, Hans (Chapter, 2019)A numerical model for the determination of the deformed shape of nets under consideration of hydrodynamic loads and elastic twines is presented. The hydrodynamic forces are incorporated using Morison's formula and force ... -
Numerical Modelling Of The Interaction Of Moving Fish Nets And Fluid
Martin, Tobias; Bihs, Hans; Wang, Gang (Chapter, 2020)The significant difference in length scales between the flow around a moving fish net and the flow around each twine of the net prevents the resolution of the complete structure within a discrete fluid domain. In this ... -
Numerical simulation and comparison with experiments of a floating wind turbine using a direct forcing method
Berthelsen, Petter Andreas; Thys, Maxime; Kamath, Arun Mulky; Martin, Tobias; Bihs, Hans Sebastian (Chapter, 2022)The open-source Computational Fluid Dynamic (CFD) code REEF3D is used to simulate the hydrodynamic loads and motion response of a floating wind turbine substructure, the INO WINDMOOR semisubmersible floating wind turbine. ... -
Numerical Simulation of Hydrodynamics Around Net Meshes Using REEF3D
Wang, Gang; Martin, Tobias; Huang, Liuyi; Bihs, Hans (Chapter, 2020)Hydrodynamics and turbulence around net meshes have drawn more and more attention because it is closely related to forces on the structures and safety issues of offshore fish farms. In terms of numerical modeling of forces ... -
Numerical Simulation of Interactions between Water Waves and a Moored-Floating Breakwater
Martin, Tobias; Kamath, Arun; Bihs, Hans (Chapter, 2018)Floating breakwaters offer a cost-efficient alternative to common emerged rubble mound breakwaters in deep water coastal areas or harbors with poor seabed conditions. Often, simple box type structures with a suitable mooring ... -
A Numerical Solution for Modelling Mooring Dynamics, Including Bending and Shearing Effects, Using a Geometrically Exact Beam Model
Martin, Tobias; Bihs, Hans (Peer reviewed; Journal article, 2021)During the operation of moored, floating devices in the renewable energy sector, the tight coupling between the mooring system and floater motion results in snap load conditions. Before snap events occur, the mooring line ... -
A Numerical Study of the Hydrodynamics of an Offshore Fish Farm Using REEF3D
Wang, Gang; Martin, Tobias; Huang, Liuyi; Bihs, Hans (Chapter, 2021)In this paper, the CFD framework REEF3D is utilized to investigate the hydrodynamics of a large offshore fish farm in waves. The solver consists of a rigid body dynamics solver for the frame structure coupled to a fluid ... -
Simulation of Floating Bodies in Waves and Mooring in a 3D Numerical Wave Tank using REEF3D
Martin, Tobias; Kamath, Arun; Bihs, Hans (Chapter, 2019)Mooring systems ensure the safety of structures near the shore like floating breakwaters and aquaculture cages by keeping them in position. Their design has to either provide enough flexibility to allow large displacements ... -
Validation of a Numerical Model for the Investigation of Tension Leg Platforms With Marine Energy Application Using REEF3D
Windt, Christian; Goseberg, Nils; Martin, Tobias; Bihs, Hans (Chapter, 2021)Exploiting the offshore wind resources using floating offshore wind systems at sites with deep water depths requires advanced knowledge of the system behaviour, including the hydro-, areo-, and mooring dynamics. To that ...