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Proceedings Papers

Uncertainty in the Extreme Waves in the North Atlantic Ocean and Ship Responses

Takuji Waseda, Kaushik Sasmal, Rei Miratsu, Tsubasa Kodaira, Tingyao Zhu, Tsutomu Fukui, Wataru Fujimoto, Kinya Ishibashi, Vladan Vukovic
Proc. ASME. OMAE2024, Volume 2: Structures, Safety, and Reliability, V002T02A001, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-128240
https://doi.org/10.1115/OMAE2024-128240
View Paper titled, Uncertainty in the Extreme Waves in the North Atlantic Ocean and Ship Responses
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Topics: Naval architecture, North Atlantic Ocean, Satellites, Ships, Uncertainty, Waves
Proceedings Papers

Surface Waves Under the Sea Ice in the Western Arctic During 2019 R/V Mirai Cruise

Tsubasa Kodaira, Takuji Waseda, Takehiko Nose, Jun Inoue, Kazutoshi Sato, Joey Voermans, Alexander Babanin
Proc. ASME. OMAE2020, Volume 2A: Structures, Safety, and Reliability, V02AT02A005, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18547
https://doi.org/10.1115/OMAE2020-18547
View Paper titled, Surface Waves Under the Sea Ice in the Western Arctic During 2019 R/V Mirai Cruise
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Topics: Arctic region, Ice, Sea ice, Surface waves (Fluid), Waves
Proceedings Papers

Towing Experiment of a Hydro-Structural Container Ship Model in Bow-Quartering Modulated Wave Trains

Hidetaka Houtani, Yusuke Komoriyama, Sadaoki Matsui, Masayoshi Oka, Hiroshi Sawada, Yoshiteru Tanaka, Takuji Waseda
Proc. ASME. OMAE2020, Volume 6A: Ocean Engineering, V06AT06A010, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18272
https://doi.org/10.1115/OMAE2020-18272
View Paper titled, Towing Experiment of a Hydro-Structural Container Ship Model in Bow-Quartering Modulated Wave Trains
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Topics: Containers, Ships, Wave packets, Waves
Proceedings Papers

Spatial Features of Extreme Waves in Gulf of Mexico

Ryota Wada, Philip Jonathan, Takuji Waseda
Proc. ASME. OMAE2020, Volume 6B: Ocean Engineering, V06BT06A007, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19190
https://doi.org/10.1115/OMAE2020-19190
View Paper titled, Spatial Features of Extreme Waves in Gulf of Mexico
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Topics: Gulf of Mexico, Waves, Disks, Modeling, Risk, Significant wave heights, Uncertainty
Journal Articles

Assessment of Data-Inherited Uncertainty in Extreme Wave Analysis

Ryota Wada, Takuji Waseda
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. April 2020, 142(2): 021204.
Paper No: OMAE-18-1208
https://doi.org/10.1115/1.4045621
Published Online: February 6, 2020
View Article titled, Assessment of Data-Inherited Uncertainty in Extreme Wave Analysis
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Topics: Gulf of Mexico, Uncertainty, Waves, North Sea, Shapes
Proceedings Papers

Data Assimilation of the Stereo Reconstructed Wave Fields to a Nonlinear Phase Resolved Wave Model

Shogo Watanabe, Wataru Fujimoto, Tak Nose, Tsubasa Kodaira, Graham Davies, Daniel Lechner, Takuji Waseda
Proc. ASME. OMAE2019, Volume 9: Rodney Eatock Taylor Honoring Symposium on Marine and Offshore Hydrodynamics; Takeshi Kinoshita Honoring Symposium on Offshore Technology, V009T13A013, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95949
https://doi.org/10.1115/OMAE2019-95949
View Paper titled, Data Assimilation of the Stereo Reconstructed Wave Fields to a Nonlinear Phase Resolved Wave Model
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Topics: Imaging, Surface waves (Fluid), Waves
Proceedings Papers

Estimating Extreme Waves in the Gulf of Mexico Using a Simple Spatial Extremes Model

Ryota Wada, Philip Jonathan, Takuji Waseda, Shejun Fan
Proc. ASME. OMAE2019, Volume 9: Rodney Eatock Taylor Honoring Symposium on Marine and Offshore Hydrodynamics; Takeshi Kinoshita Honoring Symposium on Offshore Technology, V009T13A007, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95442
https://doi.org/10.1115/OMAE2019-95442
View Paper titled, Estimating Extreme Waves in the Gulf of Mexico Using a Simple Spatial Extremes Model
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Topics: Gulf of Mexico, Waves, Uncertainty, Modeling, Ocean engineering, Design, Manufacturing systems, Significant wave heights, Underpinning
Proceedings Papers

ADCP Observation and Numerical Model Prediction of Tidal Currents Near Kozu Island

Tsubasa Kodaira, Takuji Waseda
Proc. ASME. OMAE2018, Volume 10: Ocean Renewable Energy, V010T09A010, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-78220
https://doi.org/10.1115/OMAE2018-78220
View Paper titled, ADCP Observation and Numerical Model Prediction of Tidal Currents Near Kozu Island
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Topics: Computer simulation, Currents, Tides, Acoustics, Chain, Flow (Dynamics), Ocean currents, Ocean energy, Seas, Shorelines
Proceedings Papers

Reproduction of Freak Waves Using Variational Data Assimilation and Observation

Wataru Fujimoto, Takuji Waseda
Proc. ASME. OMAE2018, Volume 3: Structures, Safety, and Reliability, V003T02A004, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-77771
https://doi.org/10.1115/OMAE2018-77771
View Paper titled, Reproduction of Freak Waves Using Variational Data Assimilation and Observation
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Topics: Waves, Errors, Gages, Variational techniques, Engineering simulation, Nonlinear waves, Offshore structures, Simulation, Spatiotemporal phenomena, Time series
Proceedings Papers

Drifting Rogue Packets

Amin Chabchoub, Norbert Hoffmann, Nail Akhmediev, Takuji Waseda
Proc. ASME. OMAE2018, Volume 3: Structures, Safety, and Reliability, V003T02A006, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-77904
https://doi.org/10.1115/OMAE2018-77904
View Paper titled, Drifting Rogue Packets
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Topics: Dynamics (Mechanics), Modeling, Seas, Water, Water waves, Wave packets, Waves
Proceedings Papers

Benchmark for the Sources of Uncertainty in Extreme Wave Analysis

Ryota Wada, Takuji Waseda
Proc. ASME. OMAE2018, Volume 3: Structures, Safety, and Reliability, V003T02A033, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-78216
https://doi.org/10.1115/OMAE2018-78216
View Paper titled, Benchmark for the Sources of Uncertainty in Extreme Wave Analysis
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Topics: Uncertainty, Waves, Gulf of Mexico, North Sea, Errors, Meteorology, Pacific Ocean, Seas
Proceedings Papers

Comparison of the Long-Term Trends of the Largest Waves in the Ice-Free Arctic Waters From Different Reanalysis Products

Takuji Waseda, Takehiko Nose, Adrean Webb
Proc. ASME. OMAE2018, Volume 3: Structures, Safety, and Reliability, V003T02A007, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-77971
https://doi.org/10.1115/OMAE2018-77971
View Paper titled, Comparison of the Long-Term Trends of the Largest Waves in the Ice-Free Arctic Waters From Different Reanalysis Products
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Topics: Arctic region, Ice, Water, Waves, Arctic Ocean, Seas, Ships, Uncertainty, Resolution (Optics), Satellites
Proceedings Papers

Modulation Instability and Extreme Events Beyond Initial Three Wave Systems

Amin Chabchoub, Takuji Waseda
Proc. ASME. OMAE2016, Volume 3: Structures, Safety and Reliability, V003T02A036, June 19–24, 2016
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2016-54916
https://doi.org/10.1115/OMAE2016-54916
View Paper titled, Modulation Instability and Extreme Events Beyond Initial Three Wave Systems
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Topics: Waves, Dynamics (Mechanics), Computer simulation, Boundary element methods, Cascades (Fluid dynamics), Oceans, Physics, Schrödinger equation, Water, Water waves
Proceedings Papers

The Relationship Between the Shape of Freak Waves and Nonlinear Wave Interactions

Wataru Fujimoto, Takuji Waseda
Proc. ASME. OMAE2016, Volume 3: Structures, Safety and Reliability, V003T02A003, June 19–24, 2016
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2016-54768
https://doi.org/10.1115/OMAE2016-54768
View Paper titled, The Relationship Between the Shape of Freak Waves and Nonlinear Wave Interactions
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Topics: Nonlinear waves, Shapes, Waves, Deformation, Design, Engineering simulation, Geometry, Marine accidents, Offshore structures, Ships
Proceedings Papers

Diffraction and Instability of Short-Crested Limited-Length One-Dimensional Coherent Wave Trains

Alexander V. Babanin, Takuji Waseda
Proc. ASME. OMAE2015, Volume 3: Structures, Safety and Reliability, V003T02A023, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41495
https://doi.org/10.1115/OMAE2015-41495
View Paper titled, Diffraction and Instability of Short-Crested Limited-Length One-Dimensional Coherent Wave Trains
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Topics: Diffraction, Wave packets, Waves, Trains, Phase shift, Wave energy
Proceedings Papers

3D Stereo Imaging of Abnormal Waves in a Wave Basin

Kento Mozumi, Takuji Waseda, Amin Chabchoub
Proc. ASME. OMAE2015, Volume 3: Structures, Safety and Reliability, V003T02A027, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-42318
https://doi.org/10.1115/OMAE2015-42318
View Paper titled, 3D Stereo Imaging of Abnormal Waves in a Wave Basin
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Topics: Imaging, Waves, Wire
Proceedings Papers

Nonlinear Effects on Local Mechanics of Freak Waves

Wataru Fujimoto, Takuji Waseda
Proc. ASME. OMAE2015, Volume 7: Ocean Engineering, V007T06A083, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41888
https://doi.org/10.1115/OMAE2015-41888
View Paper titled, Nonlinear Effects on Local Mechanics of Freak Waves
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Topics: Waves, Shapes, Particulate matter, Design, Geometry, Kinematics, Offshore structures, Ships
Proceedings Papers

Freak Wave Generation in a Wave Basin With HOSM-WG Method

Hidetaka Houtani, Takuji Waseda, Wataru Fujimoto, Keiji Kiyomatsu, Katsuji Tanizawa
Proc. ASME. OMAE2015, Volume 7: Ocean Engineering, V007T06A085, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-42284
https://doi.org/10.1115/OMAE2015-42284
View Paper titled, Freak Wave Generation in a Wave Basin With HOSM-WG Method
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Topics: Waves, Simulation, Separation (Technology), Transfer functions, Wave packets
Proceedings Papers

Improving Resource Assessment of Wave Power Based on Spectral Wave Model

Takuji Waseda, Sho Asaumi, Keiji Kiyomatsu
Proc. ASME. OMAE2014, Volume 9B: Ocean Renewable Energy, V09BT09A045, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-24492
https://doi.org/10.1115/OMAE2014-24492
View Paper titled, Improving Resource Assessment of Wave Power Based on Spectral Wave Model
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Topics: Wave energy, Waves, Buoys, Wind, Errors, Pacific Ocean, Resolution (Optics), Seas, Shapes, Uncertainty
Proceedings Papers

On the Aleatory and Epistemic Uncertainty of the Wave Resource Assessment in the North West Pacific

Yusuke Kidoura, Ryota Wada, Takuji Waseda
Proc. ASME. OMAE2014, Volume 9B: Ocean Renewable Energy, V09BT09A046, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-24496
https://doi.org/10.1115/OMAE2014-24496
View Paper titled, On the Aleatory and Epistemic Uncertainty of the Wave Resource Assessment in the North West Pacific
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Topics: Pacific Ocean, Uncertainty, Waves, Seas, Arctic region, Oscillations, Wave energy, Climate, Emission spectroscopy, North Atlantic Ocean