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Keywords: simulation
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Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 27–29, 2021
Paper Number: SNAME-SMC-2021-053
... in 2D-flow was used to investigate the problem numerically. Simulations on a NACA 0009 hydrofoil with varying inflow velocity, angle of attack, and bevel angle were done. The content in this paper is a summary of the work done by the author during his MSc Individual Project at University College London...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 27–29, 2021
Paper Number: SNAME-SMC-2021-081
... Hull Design engineers and hydrodynamicists need high fidelity tools to help understand the performance of the vessels they are designing. In the context of Computational Fluid Dynamics (CFD), it is often assumed these numerical simulations will take a long time to run and are cumbersome...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 27–29, 2021
Paper Number: SNAME-SMC-2021-132
... CFD is a useful tool for ship designers looking for accurate predictions of the fuel efficiency achieved by a certain combination of hull, propeller and Energy Saving Devices (ESDs). Such predictions are key to meeting ever-increasing demands for reductions in emissions. However, CFD simulations...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-116
... At the center of litigation involving vessel collisions and allisions is the history of the movement and interaction of the vessel with its surroundings. Forensic analysis of an incident, and sometimes litigation, seeks to resolve the causes and timing of the vessel movements. Simulation...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-089
... resistance predicted using Aegir and published experimental results. STAR-CCM+ is used to find the calm water self-propulsion point for the KCS using a propeller body force actuator disk model. The results from Aegir’s added resistance and STAR-CCM+’s calm water power simulations are used together...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-053
... performing maritime operations is proposed by applying reinforcement learning techniques using scenarios implemented in commercial marine simulation technology. The approach is demonstrated with a simple case study using a short transit operation. Details and limitations of the method are presented...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-033
... an adequate boundary layer model. upstream oil & gas simulation residual hydroelastic response propeller performance reynolds number husser smc2020 regression equation blade deformation loading deformation blade deflection virtual event torque nichola propeller blade fsi simulation...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-091
...-dimensional work simulation model. sub-assembly process pallet production system welding simulation shipyard work simulation welding work semi-automated welding 4 component member marine transportation work performance procedure work simulation model digital transformation virtual event...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-033
..., exploratory high-fidelity simulations have been carried out for surface-piercing hydrofoils in unsteady conditions with help of a computational fluid dynamics solver for fluid flow coupled with a finite element solver for the foil structure. To model unsteady foil deformations, the morphing mesh approach...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-040
...Merits of Machine Learning in Voyage Routing Problems John C. Bandas (AM) Hydrodynamic Engineer, MARIN USA, Houston, Texas For the purpose of simulating marine heavy lift transports and installations of major facilities, the SafeTrans tool incorporates a Captain Decision Mimic (CDM) to allow...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-048
.... The characteristics of hydrodynamic derivatives in maneuvering equations are traditionally obtained from towing tank experiments. In this paper, we present several numerical simulations of typical ship maneuvering using a RANS-based computational fluid dynamics tool. In order to resolve the transient phenomena...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-049
... CFD tool, SimericsMP+, is used for all simulations and results are compared to towing tank tests and sea trial data. Significant agreement is shown with experiments, including those effects due to appendages, and results can be achieved with practical turnaround times on a single workstation...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-069
... Hull and strake geometries on a craft typically influence effective rudder angle during turning maneuvers. In this paper, we propose a simple yet accurate model for effective rudder angle that can be used in lumped-parameter maneuvering simulations. The model defines the effective angle...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-071
... motions in a seaway have been in use for many decades. Complexity and fidelity have grown from linear frequency-domain strip the- ory to full RANS CFD simulations. The regime of potential flow panel codes have developed to where nonlinear calculations are possible, but numerical instability, modelling...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-054
... simulation wave height maneuver rudder maneuvering october 2019 fluid modeling maneuverability formulation tacoma wa subramanian effect calm water equation of state ship computational model propeller circle maneuver marine transportation trajectory freight & logistics...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-063
...-electric submarine shapes, semi-empirical estimation methods, and a fast, validated six degree-of-freedom submarine maneuvering simulator, we examinet he impact of reducing sail height on maneuverability and recoverability following sternplane jams. We show that, while turning effectiveness and horizontal...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-067
... The study investigates the influence of the propeller diameter and longitudinal position on the overall propulsion efficiency of axial-symmetric underwater vehicles, by means of high-fidelity viscous flow simulations. Firstly, we augment the classical problem of choosing the optimum propeller...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-003
...Rapid Simulation of Ship Motions during Maneuvering in Operational Wave Conditions Kevin McTaggart (FL) Defence Research and Development Canada Ship design and operational planning require methods for predicting ship maneuvering including wave-induced motions. Rapid evaluation of ship motions...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-010
... 1 Simulation of ship's maneuvering under the influence of wind and waves Dionysia Chroni 1 (SM), Apostolos Papanikolaou 2 (FL) 1. National Technical University of Athens, Greece, dchroni@central.ntua.gr 2. em. Professor National Technical University of Athens, Greece, papa@deslab.ntua.gr & Senior...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-011
..., energy efficiency, safety, environmental compatibility and life-cycle cost. operational scenario platform ship design integration assessment marine transportation holistic approach calculation configuration optimisation artificial intelligence tacoma wa optimization problem simulation...

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