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Proceedings Papers

Validation of a Mooring System With Clump Weights for a Spar Floating Wind Turbine Model Using OpenFAST

Tomas Lopez-Olocco, Leo M. González Gutiérrez, Krish Thiagarajan
Proc. ASME. OMAE2024, Volume 7: Ocean Renewable Energy, V007T09A012, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-123630
https://doi.org/10.1115/OMAE2024-123630
View Paper titled, Validation of a Mooring System With Clump Weights for a Spar Floating Wind Turbine Model Using OpenFAST
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Topics: Floating wind turbines, Mooring, Spar platforms, Computer simulation, Dynamics (Mechanics), Oceans, Seabed, Seas, Stiffness, Tension
Proceedings Papers

Heave Plate Hydrodynamic Coefficients for Floating Offshore Wind Turbines – A Compilation of Data

Matthew Turner, Lu Wang, Krish Thiagarajan, Amy Robertson
Proc. ASME. IOWTC2023, ASME 2023 5th International Offshore Wind Technical Conference, V001T02A001, December 18–19, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2023-119414
https://doi.org/10.1115/IOWTC2023-119414
View Paper titled, Heave Plate Hydrodynamic Coefficients for Floating Offshore Wind Turbines – A Compilation of Data
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Topics: Computer software, Damping, Drag (Fluid dynamics), Floating wind turbines, Flow (Dynamics), Geometry, Hydrodynamics, Modeling, Offshore wind turbines, Plates (structures)
Proceedings Papers

Comparison of Fatigue Characteristics of Polyester and Nylon Mooring Lines for Shallow Water Floating Offshore Wind Turbines

Samer Saleh, Richard Akers, Bonjun Koo, Henry Yau, Tomas Lopez, Krish Thiagarajan
Proc. ASME. IOWTC2023, ASME 2023 5th International Offshore Wind Technical Conference, V001T01A016, December 18–19, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2023-119409
https://doi.org/10.1115/IOWTC2023-119409
View Paper titled, Comparison of Fatigue Characteristics of Polyester and Nylon Mooring Lines for Shallow Water Floating Offshore Wind Turbines
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Topics: Fatigue, Fatigue analysis, Floating wind turbines, Mooring, Nylon fabrics, Polyester fabrics, Ropes, Water
Proceedings Papers

Investigation of Theoretical Solutions to a Bottom-Raised Oscillating Surge Wave Energy Converter (OSWEC) Through Experimental and Parametric Studies

Nhu Nguyen, Jacob Davis, Krish Thiagarajan, Nathan Tom, Salman Husain
Proc. ASME. OMAE2023, Volume 8: Ocean Renewable Energy, V008T09A082, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-106657
https://doi.org/10.1115/OMAE2023-106657
View Paper titled, Investigation of Theoretical Solutions to a Bottom-Raised Oscillating Surge Wave Energy Converter (OSWEC) Through Experimental and Parametric Studies
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Topics: Oscillations, Surges, Wave energy converters, Waves, Damping, Hinges, Stress, Excitation, Radiation (Physics), Reflection
Journal Articles

Influence on Structural Loading of a Wave Energy Converter by Controlling Variable-Geometry Components and the Power Take-Off

Salman Husain, Jacob Davis, Nathan Tom, Krish Thiagarajan, Cole Burge, Nhu Nguyen
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. June 2023, 145(3): 030905.
Paper No: OMAE-22-1166
https://doi.org/10.1115/1.4062115
Published Online: April 5, 2023
View Article titled, Influence on Structural Loading of a Wave Energy Converter by Controlling Variable-Geometry Components and the Power Take-Off
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Topics: Damping, Geometry, Stress, Surges, Waves, Wave energy converters
Proceedings Papers

Hydrodynamic Effects of Surface Roughness on Cylinders: Literature Review and Research Gaps

Maduka Maduka, Katherine Coughlan, Franck Schoefs, Krish Thiagarajan, Sanjay Arwade, Alison Bates
Proc. ASME. IOWTC2022, ASME 2022 4th International Offshore Wind Technical Conference, V001T01A020, December 7–8, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2022-98886
https://doi.org/10.1115/IOWTC2022-98886
View Paper titled, Hydrodynamic Effects of Surface Roughness on Cylinders: Literature Review and Research Gaps
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Topics: Biofouling, Cylinders, Surface roughness
Proceedings Papers

Estimation of Most Probable Maximum Mooring Tensions for FOWT in Shallow Water US East Coast Environments

Samer Saleh, Ahmed Alshuwaykh, Richard Akers, Krish Thiagarajan, Bonjun Koo, Hyoungchul Kim, Tapio Laihomäki, Sanjay Arwade, Matthew Lackner, Lars Samuelsson
Proc. ASME. IOWTC2022, ASME 2022 4th International Offshore Wind Technical Conference, V001T01A015, December 7–8, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2022-98884
https://doi.org/10.1115/IOWTC2022-98884
View Paper titled, Estimation of Most Probable Maximum Mooring Tensions for FOWT in Shallow Water US East Coast Environments
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Topics: Chain, Floating wind turbines, Mooring, Ropes, Shorelines, Water
Proceedings Papers

Influence on Structural Loading of a Wave Energy Converter by Controlling Variable-Geometry Components and the Power Take-Off

Salman Husain, Jacob Davis, Nathan Tom, Krish Thiagarajan, Cole Burge, Nhu Nguyen
Proc. ASME. OMAE2022, Volume 8: Ocean Renewable Energy, V008T09A087, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-81518
https://doi.org/10.1115/OMAE2022-81518
View Paper titled, Influence on Structural Loading of a Wave Energy Converter by Controlling Variable-Geometry Components and the Power Take-Off
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Topics: Geometry, Wave energy converters, Stress, Waves, Hinges, Design, Damping, Failure, Oceans, Oscillations
Proceedings Papers

Performance Modeling of a Variable-Geometry Oscillating Surge Wave Energy Converter on a Raised Foundation

Cole Burge, Nathan Tom, Krish Thiagarajan, Jacob Davis, Nhu Nguyen
Proc. ASME. OMAE2021, Volume 9: Ocean Renewable Energy, V009T09A010, June 21–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2021-62423
https://doi.org/10.1115/OMAE2021-62423
View Paper titled, Performance Modeling of a Variable-Geometry Oscillating Surge Wave Energy Converter on a Raised Foundation
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Topics: Geometry, Modeling, Oscillations, Surges, Wave energy converters, Pressure, Steel, Wave energy, Additive manufacturing, Concretes
Proceedings Papers

Reduction in Mooring System Lifetime due to Corrosion and Severe Storms

Michael MacNicoll, Richard Akers, Krish Thiagarajan Sharman, Wei-Ting Hsu
Proc. ASME. OMAE2020, Volume 9: Ocean Renewable Energy, V009T09A075, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19224
https://doi.org/10.1115/OMAE2020-19224
View Paper titled, Reduction in Mooring System Lifetime due to Corrosion and Severe Storms
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Topics: Chain, Corrosion, Fatigue, Mooring, Storms
Proceedings Papers

Development of a Numerical Dynamic Mooring Model for Visco-Elastic and Visco-Plastic Deformation of Synthetic Ropes

Nhu Nguyen, Krish Thiagarajan Sharman
Proc. ASME. OMAE2020, Volume 9: Ocean Renewable Energy, V009T09A076, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19257
https://doi.org/10.1115/OMAE2020-19257
View Paper titled, Development of a Numerical Dynamic Mooring Model for Visco-Elastic and Visco-Plastic Deformation of Synthetic Ropes
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Topics: Deformation, Mooring, Ropes, Stress
Proceedings Papers

Design, Analysis, and Development of a Wave-Current Laboratory

Nhu Nguyen, Jacob Davis, Ahmed Alshuwaykh, Krish Thiagarajan Sharman
Proc. ASME. OMAE2020, Volume 6A: Ocean Engineering, V06AT06A019, August 3–7, 2020
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19253
https://doi.org/10.1115/OMAE2020-19253
View Paper titled, Design, Analysis, and Development of a Wave-Current Laboratory
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Topics: Computational fluid dynamics, Design, Flumes, Waves
Proceedings Papers

Performance Specifications for Real-Time Hybrid Testing of 1:50-Scale Floating Wind Turbine Models

Matthew Hall, Javier Moreno, Krish Thiagarajan
Proc. ASME. OMAE2014, Volume 9B: Ocean Renewable Energy, V09BT09A047, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-24497
https://doi.org/10.1115/OMAE2014-24497
View Paper titled, Performance Specifications for Real-Time Hybrid Testing of 1:50-Scale Floating Wind Turbine Models
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Topics: Floating wind turbines, Testing, Wind turbines, Simulation, Computer simulation, Delays, Errors, Waves
Proceedings Papers

The Effect of Pressure Solution in SPH Simulations of Sloshing Flow

Ashkan Rafiee, Sharen Cummins, Murray Rudman, Krish Thiagarajan
Proc. ASME. OMAE2011, Volume 6: Ocean Engineering, 129-138, June 19–24, 2011
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2011-49215
https://doi.org/10.1115/OMAE2011-49215
View Paper titled, The Effect of Pressure Solution in SPH Simulations of Sloshing Flow
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Topics: Engineering simulation, Flow (Dynamics), Pressure, Simulation, Sloshing, Equations of state, Hydrodynamics, Modeling, Particulate matter, Reynolds number
Proceedings Papers

Comparison of Sloshing Impacts for Rectangular and Chamfered LNG Tanks

Fabrizio Pistani, Krish Thiagarajan, Dominique Roddier, Tim Finnigan
Proc. ASME. OMAE2011, Volume 1: Offshore Technology; Polar and Arctic Sciences and Technology, 375-381, June 19–24, 2011
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2011-49452
https://doi.org/10.1115/OMAE2011-49452
View Paper titled, Comparison of Sloshing Impacts for Rectangular and Chamfered LNG Tanks
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Topics: Liquefied natural gas, Sloshing, Corners (Structural elements), Fluids, Geometry, Pressure
Proceedings Papers

The Effect of Sampling Rate on the Statistics of Impact Pressure

Nitin Repalle, Tam Truong, Krish Thiagarajan, Dominique Roddier, Robert K. M. Seah, Timothy Finnigan
Proc. ASME. OMAE2010, 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 1, 565-572, June 6–11, 2010
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2010-20883
https://doi.org/10.1115/OMAE2010-20883
View Paper titled, The Effect of Sampling Rate on the Statistics of Impact Pressure
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Topics: Pressure, Statistics, Sloshing, Containment systems, Design, Excitation, Impulse (Physics), Liquefied natural gas, Probability, Sprays
Proceedings Papers

An Experimental Investigation of Wave Steepness and Cylinder Slenderness Effects on Wave Run-Up

Michael Morris-Thomas, Krish Thiagarajan, Jo̸rgen Krokstad
Proc. ASME. OMAE2002, 21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 4, 244-253, June 23–28, 2002
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2002-28050
https://doi.org/10.1115/OMAE2002-28050
View Paper titled, An Experimental Investigation of Wave Steepness and Cylinder Slenderness Effects on Wave Run-Up
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Topics: Cylinders, Waves, Boundary element methods, Diffraction, Perturbation theory, Regression analysis, Separation (Technology), Surface-piercing cylinders
Proceedings Papers

Modelling the Heave Response of Tension Leg Platforms Using the Volterra Series

Scott Taylor, Nicholas Haritos, Krish Thiagarajan
Proc. ASME. OMAE2003, Volume 1: Offshore Technology; Ocean Space Utilization, 71-79, June 8–13, 2003
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2003-37054
https://doi.org/10.1115/OMAE2003-37054
View Paper titled, Modelling the Heave Response of Tension Leg Platforms Using the Volterra Series
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Topics: Modeling, Tension-leg platforms, Transfer functions, Volterra series
Proceedings Papers

Vortex-Induced Vibration of Catenary Moored Cylindrical Structures

Brad Stappenbelt, Krish Thiagarajan
Proc. ASME. OMAE2004, 23rd International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, Parts A and B, 347-353, June 20–25, 2004
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2004-51164
https://doi.org/10.1115/OMAE2004-51164
View Paper titled, Vortex-Induced Vibration of Catenary Moored Cylindrical Structures
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Topics: Mooring, Vortex-induced vibration, Cylinders, Modeling, Vortices, Computer software, Cross-flow, Degrees of freedom, Floating structures, Locks (Waterways)
Proceedings Papers

Benchmarking of Truss Spar Vortex Induced Motions Derived From CFD With Experiments

John Halkyard, Senu Sirnivas, Samuel Holmes, Yiannis Constantinides, Owen H. Oakley, Jr., Krish Thiagarajan
Proc. ASME. OMAE2005, 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3, 895-902, June 12–17, 2005
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2005-67252
https://doi.org/10.1115/OMAE2005-67252
View Paper titled, Benchmarking of Truss Spar Vortex Induced Motions Derived From CFD With Experiments
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Topics: Computational fluid dynamics, Spar platforms, Trusses (Building), Vortices, Wing spars, Design, Hull, Computation, Cylinders, Gulf of Mexico