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Relevant bibliographies by topics / Wave resistance (Hydrodynamics)

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Academic literature on the topic 'Wave resistance (Hydrodynamics)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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Journal articles on the topic "Wave resistance (Hydrodynamics)"

1

Gotman, Ada. "Residual Resistance of Displacement Vessels." Journal of Marine Science and Engineering 8, no. 6 (2020): 400. http://dx.doi.org/10.3390/jmse8060400.

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The hydrodynamics of the residual resistance of ships is formulated for the first time: the residual resistance of vessel displacement is the result of the formation of retaining bow waves, Kelvin wave systems and their interaction—as well as the action of viscosity, which is expressed in the form of a turbulent subsurface boundary layer. Michell’s integral is taken as a basis for calculations of residual resistance. The two corrections take into account the shear layer of wave surface and the shift of the Kelvin bow system by the retaining waves. The correlation of the calculated and experime

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Du, Peng, Abdellatif Ouahsine, Philippe Sergent, Yannick Hoarau, and Haibao Hu. "Investigation on Resistance, Squat and Ship-Generated Waves of Inland Convoy Passing Bridge Piers in a Confined Waterway." Journal of Marine Science and Engineering 9, no. 10 (2021): 1125. http://dx.doi.org/10.3390/jmse9101125.

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The average and unsteady hydrodynamics of an inland convoy passing bridge piers in a confined waterway were investigated using both numerical and experimental approaches. The numerical simulations are realized by solving the RANS (Reynolds-averaged Navier–Stokes) equations accounting for the solid body motion using the sliding mesh technique, while the experiments were carried out in the towing tank. The advancing resistance, trim, sinkage and ship-generated waves were analyzed as functions of the water depth, distance between bridge piers, draught and velocity. The existence of the piers is f

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Oyuela, S., R. Sosa, A. D. Otero, F. P. Arribas, and H. R. Diaz-Ojeda. "An experimental and numerical hydrodynamic study on the Argentinian fishing vessels." IOP Conference Series: Materials Science and Engineering 1288, no. 1 (2023): 012047. http://dx.doi.org/10.1088/1757-899x/1288/1/012047.

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Abstract The purpose of this work is the validation of the hydrodynamic resistance for a small fishing vessel providing more details about the ship’s hydrodynamics. The selected ship is a traditional vessel that has been sailing in Argentina for more than 20 years without a previous numerical resistance evaluation. Because of the absence of previous numerical optimization, the ship might be a non-efficient vessel from a consumption, operating and polluting point of view. For this reason, in order to bring a more detailed evaluation of the flow around this hull, numerical studies are carried ou

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Jia, Jingbei, and Zhi Zong. "Experimental Study on the Configuration Hydrodynamics of Trimaran Ships." Journal of Marine Science and Application 21, no. 3 (2022): 46–55. http://dx.doi.org/10.1007/s11804-022-00281-y.

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AbstractThis paper presents experimental results on configuration hydrodynamics. Three models are used in the model tests, which are typical of hard, round, and soft chines. Although specific values are different, the influence patterns are similar in the three ship models. A set of different outrigger positions is investigated in calm water and regular waves. A variety of interesting phenomena are observed, among which the splash resistance is the dominant component for a trimaran at high speeds (with Froude number Fr > 0.6). If two small outriggers are placed inside Kelvin’s wave systems

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Kolesnichenko, Aleksandr Vladimirovich. "Simple waves and small perturbations in radiative gas dynamics." Keldysh Institute Preprints, no. 48 (2023): 1–34. http://dx.doi.org/10.20948/prepr-2023-48.

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The paper analyses one-dimensional simple waves and small-amplitude disturbances in radiating and scattering grey gas. The governing equation of radiation acoustics describing the dynamics of simple waves is derived. Radiation-thermal dissipation conditions and radiation resistance force are introduced into this equation to describe the propagation and attenuation of various radiation perturbation waves. To study non-equilibrium wave phenomena in a radiating medium, the phenomenological Whitham method is used. This method is an effective way to analyse fundamental modes when more than one velo

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Doctors, Lawrence J. "Reanalysis of the Sydney Harbor RiverCat Ferry." Journal of Marine Science and Engineering 9, no. 2 (2021): 215. http://dx.doi.org/10.3390/jmse9020215.

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In this paper, we revisit the hydrodynamics supporting the design and development of the RiverCat class of catamaran ferries operating in Sydney Harbor since 1991. More advanced software is used here. This software accounts for the hydrodynamics of the transom demisterns that experience partial or full ventilation, depending on the vessel speed. This ventilation gives rise to the hydrostatic drag, which adds to the total drag of the vessel. The presence of the transom also creates a hollow in the water. This hollow causes an effective hydrodynamic lengthening of the vessel, which leads to a re

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Waskito, Kurniawan Teguh, and Yanuar. "On the High-Performance Hydrodynamics Design of a Trimaran Fishing Vessel." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 83, no. 1 (2021): 17–33. http://dx.doi.org/10.37934/arfmts.83.1.1733.

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Trimaran hull form as multihull ship becomes more attractive these days in various ship types. It offers more advantages in terms of seakeeping performances, particularly on the application of a fishing vessel. However, thus far, the conventional design of fishing vessels is not favorable to ensure the safety of a vessel sailing in a rough sea. In conjunction with such issues, we discuss a trimaran fishing vessel design based on the seakeeping criterion to evaluate the dynamic stability, ship motion RAOs, and ship resistances at the initial design stages using linear strip theory. The intact s

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Arribas, F. P., S. Oyuela, A. D. Otero, R. Sosa, and H. R. Diaz-Ojeda. "The use of Ctrl+Z in ship design: removing a bulbous bow." IOP Conference Series: Materials Science and Engineering 1288, no. 1 (2023): 012044. http://dx.doi.org/10.1088/1757-899x/1288/1/012044.

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Abstract A bulbous bow is a widely employed feature to enhance the hydrodynamic resistance of ships. More than 95% of the merchant fleet incorporates various types of bulbous bows to reduce wave-making resistance and wave breaking. Bulbous bow is also utilized in smaller vessels like fishing vessels. In certain cases, the initial ship design includes the addition of a bulbous bow by default. In this study, which focuses on a typical Argentinian trawler fishing vessel, we investigate the impact of the bulbous bow on resistance. Taking a reverse approach, we modify the fishing vessel by removing

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Grimshaw, Roger. "Ernest Oliver Tuck 1939 - 2009." Historical Records of Australian Science 23, no. 2 (2012): 187. http://dx.doi.org/10.1071/hr12010.

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Ernie Tuck was one of Australia's most outstanding applied mathematicians, with an international reputation as a leading authority on water waves and ship hydrodynamics. He made seminal and incisive theoretical analyses in many areas, especially on wave resistance of slender ships and wave interaction with obstacles. His work is characterized by his ability to find the essentials of a complex problem, and then to apply apparently simple, but revealing analyses, using a combination of perturbation and asymptotic techniques with numerical calculations. He was an outstanding expositor, supervised

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Mandru, A., and F. Pacuraru. "The effect of appendages on ship resistance." IOP Conference Series: Materials Science and Engineering 1182, no. 1 (2021): 012041. http://dx.doi.org/10.1088/1757-899x/1182/1/012041.

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Abstract The availability of the robust commercial computational fluid dynamics (CFD) software and the increasing power of high-performance computers (HPC) boosts the use of CFD techniques for numerical investigations of ship hydrodynamimcs performaces. Nowadays, CFD tools provide a rather accurate solution for complex physical phenomena, such as wave braking, turbulence, flow detachment and overturning. Consequently, the ability to capture this fenomena allows a detailed insight into the flow mechanism that trigger and sustain them. The paper focuses on a numerical investigation of flow aroun

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Dissertations / Theses on the topic "Wave resistance (Hydrodynamics)"

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Elcin, Zafer. "Wave making resistance characteristics of trimaran hulls." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FElcin.pdf.

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Walker, Daniel Anthony Guy. "Interaction of extreme ocean waves with offshore structures." Thesis, University of Oxford, 2006. http://ora.ox.ac.uk/objects/uuid:6858dc08-1bd4-4195-8893-1af98d5e68e3.

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With most of the world's untouched oil and gas resources offshore and the possibility that hurricanes are becoming more frequent and more intense, the risks associated with offshore oil and gas production are increasing. Therefore, there is an urgent need to improve current understanding of extreme ocean waves and their interaction with structures. This thesis is concerned with the modelling of extreme ocean waves and their diffraction by offshore structures, with the ultimate aim of proposing improved tools for guiding airgap design. The feasibility of using linear and second order diffractio

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Bradley, Brian Kevin. "Characterizing the relative velocity of seagrass blades under oscillatory flow conditions and the implications for wave attenuation." [Pensacola, Fla.] : University of West Florida, 2007. http://purl.fcla.edu/fcla/etd/WFE0000081.

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Winsor, Fraser N. "Methods for removing inertial force from measured wave impact force signals." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0021/MQ55546.pdf.

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Xing, Zhiliang. "Identification of the variance of the wave exciting rolling moment using ship's random response /." Internet access available to MUN users only, 2003. http://collections.mun.ca/u?/theses,170296.

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Mahfouz, Ayman B. "Identification of the hydrodynamic model of an underwater robotic vehicle heaving and pitching near the sea surface using its measured response." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ62452.pdf.

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Xu, Jinsong. "Estimation of wave-induced ship hull bending moment from ship motion measurements." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0029/NQ62460.pdf.

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Byres, Ronald David. "The application of floating breakwaters in British Columbia." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28370.

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The nature of British Columbia coastal and inland waterways affords many locations where floating breakwaters are or could be used to protect small-craft harbours from wave action. A field survey of many of the current breakwater sites is undertaken in order to establish qualitative performance criteria of various designs. A two-dimensional numerical model is developed to predict the oscillatory response and wave transmission characteristics for a number of common breakwater designs. Finally, experiments with two configurations of breakwater models were carried out in the Hydraulics Laborator

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Delhommeau, Gérard. "Les problemes de diffraction-radiation et de resistance de vagues : etude theorique et resolution numerique par la methode des singularites." Nantes, 1987. http://www.theses.fr/1987NANT2032.

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Etude du comportement des structures multiples sollicitees par la houle en profondeur illimitee ou en presence d'un fond horizontal. On expose une theorie permettant de resoudre les problemes hydrodynamiques du premier ordre a l'aide de la methode des singularites de kelvin. Etude du probleme de la resistance de vagues. On pose le probleme de neumann kelvin. Etude des difficultes apparaissant lorsque les corps coupent la surface libre

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Du, Peng. "Numerical modeling and prediction of ship maneuvering and hydrodynamics during inland waterway transport." Thesis, Compiègne, 2018. http://www.theses.fr/2018COMP2459.

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Dans cette thèse, l'hydrodynamique des navires lors du transport par voies navigables et des manœuvres sont étudiées à l'aide de la CFD (Computational Fluid Dynamics) basée sur OpenFoam. Des études de validation et de vérification sont réalisées pour la convergence de maillage, la convergence de pas de temps, la sensibilité aux modèles de turbulence et les techniques de maillage dynamique. Un solveur de mouvement 6DoF basé sur quaternion est mis en œuvre pour les prédictions d'assiette et d'enfoncement. Les effets environnementaux sur plusieurs bateaux de navigation intérieure (convoi 1, convo

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Books on the topic "Wave resistance (Hydrodynamics)"

1

Daidola, John C. Hydrodynamic impact on displacement ship hulls: An assessment of the state of the art. Ship Structure Committee, 1995.

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2

Sarpkaya, Turgut. Wave forces on offshore structures. Cambridge University Press, 2010.

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Sarpkaya, Turgut. Wave forces on offshore structures. Cambridge University Press, 2010.

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University), International Symposium on the Dynamics of Marine Vehicles and Structures in Waves (2nd 1990 Brunel. Dynamics of marine vehicles and structures in waves: Proceedings of an International Union of Theoretical and Applied Mechanics Memorial Symposium on the Dynamics of Marine Vehicles and Structures in Waves, held at Brunel University, Uxbridge, U.K., 24-27 June 1990. Elsevier, 1991.

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I, Korotkin I͡A. Volnovye nagruzki korpusa sudna. "Sudostroenie", 1987.

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6

Hong, Han Ping. The characterization and analysis of load and load effect uncertainties for fixed offshore structures and their code implications: Phase II. National Energy Board, 1994.

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Hong, Han Ping. The characterization and analysis of load and load effect uncertainties for fixed offshore structures and their code implications: Phase I. National Energy Board, 1993.

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8

Jørgen, Fredsøe, ed. Hydrodynamics around cylindrical structures. World Scientific Pub., 2006.

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Jørgen, Fredsøe, ed. Hydrodynamics around cylindrical structures. World Scientific, 1997.

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American Society of Civil Engineers. Committee on Waves and Wave Forces. Task Committee on Forces on Inclined and Vertical Wall Structures., ed. Wave forces on inclined and vertical wall structures. American Society of Civil Engineers, 1995.

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Book chapters on the topic "Wave resistance (Hydrodynamics)"

1

Larsson, Lars. "Evaluation of Resistance, Sinkage, Trim and Wave Pattern Predictions for JBC." In Numerical Ship Hydrodynamics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47572-7_5.

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Larsson, Lars, and Lu Zou. "Evaluation of Resistance, Sinkage and Trim, Self Propulsion and Wave Pattern Predictions." In Numerical Ship Hydrodynamics. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7189-5_2.

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3

Hirata, Nobuyuki, Hiroshi Kobayashi, Takanori Hino, Yasuyuki Toda, Moustafa Abdel-Maksoud, and Frederick Stern. "Experimental Data for JBC Resistance, Sinkage, Trim, Self-Propulsion Factors, Longitudinal Wave Cut and Detailed Flow with and without an Energy Saving Circular Duct." In Numerical Ship Hydrodynamics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47572-7_2.

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4

Sanada, Yugo, Claus Simonsen, Janne Otzen, Hamid Sadat-Hosseini, Yasuyuki Toda, and Frederick Stern. "Experimental Data for KCS Added Resistance and ONRT Free Running Course Keeping/Speed Loss in Head and Oblique Waves." In Numerical Ship Hydrodynamics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47572-7_4.

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Stern, Frederick, Hamid Sadat-Hosseini, Timur Dogan, et al. "Assessment of CFD for KCS Added Resistance and for ONRT Course Keeping/Speed Loss in Regular Head and Oblique Waves." In Numerical Ship Hydrodynamics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47572-7_9.

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Kan, Jinyu, Lizheng Wang, Jialun Liu, Xuming Wang, and Bing Han. "Numerical Investigation of an Inland 64 TEU Container Vessel in Restricted Waters." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_45.

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AbstractCompared with sea-going ships, inland vessels mostly sail in restricted waters, which may cause resistance and ship motions to change greatly. To ensure the safety of navigation, it is of great importance to study the hydrodynamic performance of inland vessels navigating in restricted waters. A 64 Twenty-feet Equivalent Unit (TEU) container vessel is numerically simulated at different speeds and water depth draft ratios (water depth/draft = 2, 2.5, 3, 4, 5, 16). The numerical methods are firstly verified and then applied to systematic simulations. The resistance components, ship motions, and details of flow fields are calculated and analyzed. Generally, the total, frictional and residual resistance coefficients increase with a decrease of water depth as expected. However, at relatively low speeds (Fr = 0.1129 and 0.1135) of h/T = 2, 2.5, 3, the resistance components change conversely that they decrease as the water depth gets shallower. This special phenomenon may be caused by the design of the ship hull or the use of the turbulence model that may not be appropriate. The residual resistance has the same trend as the total resistance and the lines are nearly parallel, which shows that the residual resistance is dominant in the component of total resistance. The ship squat phenomenon happens but is not severe in the shallowest condition (h/T = 2). With the water depth decreasing, the wave amplitude becomes larger and the wave crests near the ship bow and stern also increase, while the troughs change slightly at different water depths.

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Ihsanudin, Wahid Nur, Aditya Rio Prabowo, Nurul Muhayat, et al. "Effects of Monohull Type and Superstructure on the Hydrodynamic Performances—Resistance and Wave Pattern of the Designed Patrol Boats." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0106-3_91.

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"Ship Wave Resistance." In Fundamentals of Ship Hydrodynamics. John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781119191575.ch25.

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Miao, Quanming, Xiaofeng Kuang, and Jinzhu Xia. "Wave resistance of a boxlike ship by a modified Dawson’s method." In Hydrodynamics VI: Theory and Applications. Taylor & Francis, 2004. http://dx.doi.org/10.1201/b16815-16.

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Duman, Suleyman, Ali Dogrul, Burak Yildiz, and Raju Datla. "Wave Interference Prediction of a Trimaran Using Form Factor." In Progress in Marine Science and Technology. IOS Press, 2020. http://dx.doi.org/10.3233/pmst200032.

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The increasing demands in high-speed transportation have brought the multi-hull forms into the forefront. Many applications have already been realized in civil transportation and naval purposes. The design features and performance characteristics of these vessels differ from mono-hull due to the wave interference phenomenon. Nowadays, evaluation of ship hydrodynamics with CFD has become very popular and successful results have been achieved. Based on this, it is aimed to contribute to the prediction of wave interference effects of a trimaran surface combatant, advancing in deep, unbounded and calm water, by applying the CFD method. A trimaran model with a scale of 1/125 was chosen for the numerical investigation. Primarily, a V&V study was conducted by using proper techniques. Then, the form factor of the trimaran was calculated with two different methods: Prohaska and double-body. The hydrodynamic analyses were performed under incompressible, viscous and fully turbulent flow conditions. Computational results were compared in terms of resistance components and interference factors. The form factor prediction methods were discussed regarding wave interference.

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Conference papers on the topic "Wave resistance (Hydrodynamics)"

1

Doctors, Lawrence J. "The Wave System of the Sydney Harbor RiverCat Ferry." In SNAME International Conference on Fast Sea Transportation. SNAME, 2021. http://dx.doi.org/10.5957/fast-2021-007.

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We revisit here the hydrodynamics supporting the design and development of the RiverCat class of catamaran ferries operating in Sydney Harbor since 1991. The design of the ferry was strongly influenced by the requirement to limit the erosion of the banks on the sides of the Parramatta River along which these ferries operate. More advanced software is used here. This software accounts for the hydrodynamics of the transom stern which create a hollow in the water. This hollow causes an effective hydrodynamic lengthening of the vessel. This leads to a reduction in the generation of the wave system

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Vukčević, V., I. Gatin, G. H. Kim, and H. Jasak. "Added Resistance CFD Analysis of the KVLCC2 With the Naval Hydro Pack." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95293.

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Abstract A CFD analysis of added resistance of a KVLCC2 ship model is presented in this paper. The Naval Hydro Pack, an open source software library for computational naval hydrodynamics based on OpenFOAM is used to perform the simulations. Ten head wave cases are considered in this study ranging from short waves to long waves (wave length to length between perpendiculars ranging from 0.3 to 2). During the initial stages of our research, we had noticed significant over-prediction of added resistance compared to experimental results. After thorough analysis, the issue was found to be related to

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Miller, William A., and Majid Keyhani. "The Effect of Roll Waves on the Hydrodynamics of Falling Films Observed in Vertical Column Absorbers." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/aes-23605.

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Abstract A thin falling film is well suited to simultaneous heat and mass transfer because of the small thermal resistance through the film and because of the large contact surface achievable at low flow rates. The film enters as a smooth laminar flow and quickly transitions into small-amplitude wavy flow. The waves grow in length and amplitude and are identified as roll waves. This flow regime is termed “wavy-laminar flow,” and modern heat and mass transfer equipment operate in this complicated transition regime. Research published in open literature has shown the mass flow rate in the roll w

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Guo, Lixiang, Peng Wei, Zhiguo Zhang, Yue Sun, and Jiawei Yu. "Numerical Simulation of Surface Ship Motion in Regular Head Waves." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77327.

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The motion of surface ship in wave environments is fully three-dimensional unsteady motion and includes complex coupling with hydrodynamic force and dynamic motion of the rigid body. This paper presents simulations of the KCS model with motions involve pitch and heave in regular head waves. Computations were performed with an in-house viscous CFD code to solve RANS equation coupled with six degrees of freedom (6DOF) solid body motion equations and dynamic overset grids designed for ship hydrodynamics. RANS equations are solved by finite difference method and PISO arithmetic. Level-set method i

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Doyle, W. James, Lauren S. Schambach, Marc V. Smith, Charles Field, and Christopher J. Hart. "Verification, Validation, and Best Practices for a High-Order, Potential-Flow Boundary Element Method." In SNAME 13th International Conference on Fast Sea Transportation. SNAME, 2015. http://dx.doi.org/10.5957/fast-2015-005.

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Aegir is a medium-fidelity potential flow code that uses a high-order, non-uniform rational B-Spline (NURBS) based boundary-element method for the computation of steady and unsteady ship hydrodynamics. This paper documents verification and validation for Aegir in its steady-state wave resistance prediction mode and Aegir’s LEAPS to Aegir function. A set of best practice guidelines has been created to aid the user in selecting initial input parameters, which reduces the necessary time for verification. This paper also presents validation of the numerical solution versus physical experiments fro

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Lungu, Adrian. "Numerical Simulation of the Resistance and Self-Propulsion Model Tests." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77767.

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The paper proposes a series of numerical investigations performed to test and demonstrate the capabilities of a RANS solver in the area of complex ship flow simulations. Focus is on a complete numerical model for hull, propeller and rudder that can account for the mutual interaction between these components. The paper presents the results of a complex investigation of the flow computations around the hull model of the 3600 TEU MOERI containership (KCS hereafter). The resistance for the hull equipped with rudder, the POW computations as well as the self-propulsion simulation are presented. Comp

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Sanada, Yugo, Shogo Ito, Yasuyuki Toda, and Frederick Stern. "Added Powering Measurements of KCS Maneuvering in Regular Variable Heading Waves." In SNAME 30th American Towing Tank Conference. SNAME, 2017. http://dx.doi.org/10.5957/attc-2017-0004.

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To know more detail of added powering and propeller load fluctuations in regular waves during free-maneuvering, free-running tests of KRISO Container Ship model (KCS) are conducted. KCS 2.7 m model that was used in the previous surge-free added resistance experiments is modified and new free-running system with compact dynamometer is installed. Free-running tests in calm water and in regular variable heading waves are performed at IIHR 40 m × 20 m × 3 m wave basin to obtain 6DOF motions with thrust/torque data. Propeller open water tests were performed at Osaka University towing tank (OU). To

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Belibassakis, K. A., Th P. Gerostathis, K. V. Kostas, et al. "A BEM-Isogeometric Method With Application to the Wavemaking Resistance Problem of Ships at Constant Speed." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49159.

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In the present work IsoGeometric Analysis (IGA), initially proposed by Hughes et al (2005), is applied to the solution of the boundary integral equation associated with the Neumann-Kelvin (NK) problem and the calculation of the wave resistance of ships, following the formulation by Brard (1972) and Baar & Price (1988). As opposed to low-order panel methods, where the body is represented by a large number of quadrilateral panels and the velocity potential is assumed to be piecewise constant (or approximated by low degree polynomials) on each panel, the isogeometric concept is based on explo

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Sprenger, Florian, Ørjan Selvik, Dariusz Fathi, Edvard Ringen, and Vahid Hassani. "Simulating Minimum Required Power and Manoeuvrability in Adverse Conditions." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23878.

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The 2002 IMO regulations regarding the turning, course keeping and stopping ability for vessels with a length greater than 100 m do not cover the presence of waves, wind and current. But their effects may significantly reduce the manoeuvring performance of ships, especially of smaller vessel types in shallow and restricted waters. Since January 2013, an additional IMO regulation is in force, covering the energy efficiency of ships by defining an Energy Efficiency Design Index (EEDI) that must not exceed a specified reference line for any new-built or converted vessel. The reference line to be

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Liang, Hong, Zhu Chuan, and Miao Ping. "Calculation and Analysis of Components of Added Resistance of Ships in Waves." In SNAME 5th World Maritime Technology Conference. SNAME, 2015. http://dx.doi.org/10.5957/wmtc-2015-100.

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Ship motions and its hydrodynamic coefficients are solved by three dimensional frequency domain potential theories with a translating and pulsating source distribution method. Furthermore, components of added wave resistance of ships advancing in waves due to the radiation and diffraction waves are obtained respectively. Added wave resistances of Wigley III hull and S175 containership with various forward speeds are carried out and analyzed in frequency domain. The numerical results are validated for the models by comparing them with experimental data. Its percentage of components of the total

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Reports on the topic "Wave resistance (Hydrodynamics)"

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Hite, John, Robert Ebeling, and Barry White. Hydraulic load definitions for use in Load and Resistance Factor Design (LRFD) analysis, including probabilistic load characterization, of 10 hydraulic steel structures : report number 1. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48610.

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In the past, allowable stress design (ASD) was used to design steel structures. The allowable stresses used were determined from previous practice, with limited understanding of the reliability and risk performance provided by the structure. Engineering methods based on Load and Resistance Factor Design (LRFD) provide more accurate lifetime models of structures by providing risk-based load factors. Besides improved safety, cost savings can be provided through improved performance and, in some cases, by delaying rehabilitation. This research project develops LRFD-based engineering procedures fo

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Michalopoulos, C. D. PR-175-420-R01 Submarine Pipeline Analysis - Theoretical Manual. Pipeline Research Council International, Inc. (PRCI), 1985. http://dx.doi.org/10.55274/r0012171.

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Describes the computer program SPAN which computes the nonlinear transient response of a submarine pipeline, in contact with the ocean floor, to wave and current excitation. The dynamic response of a pipeline to impact loads, such as loads from trawl gear of fishing vessels, may also be computed. In addition, thermal expansion problems for submarine pipelines may be solved using SPAN. Beam finite element theory is used for spatial discretization of the partial differential equations governing the motion of a submarine pipeline. Large-deflection, small-strain theory is employed. The formulation

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