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Journal Articles

Analysis of a Moored and Articulated Multibody Offshore System in Steep Waves

Changqing Jiang, Peng Xu, Ould el Moctar, Guiyong Zhang
Journal: Journal of Offshore Mechanics and Arctic Engineering
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. August 2023, 145(4): 041401.
Paper No: OMAE-22-1115
DOI: https://doi.org/10.1115/1.4056522
Published Online: January 9, 2023
View Article titled, Analysis of a Moored and Articulated Multibody Offshore System in Steep Waves
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Topics: Mooring, Waves, Stress, Surges, Dynamics (Mechanics)
Proceedings Papers

A Single Cavitation Bubble Induced Damage

Hemant Sagar, Ould el Moctar
Proc. ASME. OMAE2022, Volume 5A: Ocean Engineering, V05AT06A013, June 5–10, 2022
Paper No: OMAE2022-78536
DOI: https://doi.org/10.1115/OMAE2022-78536
View Paper titled, A Single Cavitation Bubble Induced Damage
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Topics: Bubbles, Cavitation, Damage
Proceedings Papers

Simulation of a Moored Multibody Offshore Structure Articulated by Different Joints in Waves

Changqing Jiang, Ould el Moctar, Guiyong Zhang, Thomas E. Schellin
Proc. ASME. OMAE2022, Volume 5B: Ocean Engineering; Honoring Symposium for Professor Günther F. Clauss on Hydrodynamics and Ocean Engineering, V05BT12A003, June 5–10, 2022
Paper No: OMAE2022-79571
DOI: https://doi.org/10.1115/OMAE2022-79571
View Paper titled, Simulation of a Moored Multibody Offshore Structure Articulated by Different Joints in Waves
Click here to open pdf in another window PDF for Simulation of a Moored Multibody Offshore Structure Articulated by Different Joints in Waves
Topics: Dynamics (Mechanics), Floating structures, Mooring, Offshore structures, Simulation, Viscous flow, Waves
Proceedings Papers

Wave-Induced Loads Acting on Monopile Configurations Considering Wake Effects

Michael Thome, Ould el Moctar, Thomas Schellin
Proc. ASME. OMAE2022, Volume 5B: Ocean Engineering; Honoring Symposium for Professor Günther F. Clauss on Hydrodynamics and Ocean Engineering, V05BT12A008, June 5–10, 2022
Paper No: OMAE2022-78835
DOI: https://doi.org/10.1115/OMAE2022-78835
View Paper titled, Wave-Induced Loads Acting on Monopile Configurations Considering Wake Effects
Click here to open pdf in another window PDF for Wave-Induced Loads Acting on Monopile Configurations Considering Wake Effects
Topics: Morison equation, Stress, Wakes, Waves
Proceedings Papers

Experimental Investigation of Flow Around a Single Circular Cylinder Freely Vibrating in Two Degrees-of-Freedom

Hasan el Sheshtawy, Ould el Moctar, Simon Tödter, Thomas E. Schellin
Proc. ASME. OMAE2022, Volume 7: CFD and FSI, V007T08A034, June 5–10, 2022
Paper No: OMAE2022-80115
DOI: https://doi.org/10.1115/OMAE2022-80115
View Paper titled, Experimental Investigation of Flow Around a Single Circular Cylinder Freely Vibrating in Two Degrees-of-Freedom
Click here to open pdf in another window PDF for Experimental Investigation of Flow Around a Single Circular Cylinder Freely Vibrating in Two Degrees-of-Freedom
Topics: Circular cylinders, Cylinders, Degrees of freedom, Flow (Dynamics), Oscillations, Topology, Vortex-induced vibration, Wakes
Journal Articles

Effect of Bath Agitation on the Transient Cooling by Quenching Process

Amine Kacem, Brahim Bourouga, Ahmed Ould El Moctar
Journal: Journal of Heat Transfer
Article Type: Research-Article
J. Heat Transfer. December 2021, 143(12): 122101.
Paper No: HT-20-1574
DOI: https://doi.org/10.1115/1.4052006
Published Online: October 11, 2021
View Article titled, Effect of Bath Agitation on the Transient Cooling by Quenching Process
Click here to open pdf in another window PDF for Effect of Bath Agitation on the Transient Cooling by Quenching Process
Topics: Cooling, Quenching (Metalworking), Temperature, Turbulence, Kinetic energy, Propellers
Journal Articles

Assessment of Methods for Calculating Liquefied Natural Gas Pump Tower Loads

Michael Thome, Jens Neugebauer, Ould el Moctar, Thomas E. Schellin
Journal: Journal of Offshore Mechanics and Arctic Engineering
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. December 2021, 143(6): 061402.
Paper No: OMAE-20-1136
DOI: https://doi.org/10.1115/1.4050964
Published Online: May 10, 2021
View Article titled, Assessment of Methods for Calculating Liquefied Natural Gas Pump Tower Loads
Click here to open pdf in another window PDF for Assessment of Methods for Calculating Liquefied Natural Gas Pump Tower Loads
Topics: Delay differential equations, Liquefied natural gas, Morison equation, Pipes, Pumps, Simulation, Stress, Flow (Dynamics), Emergencies, Bracing (Construction)
Proceedings Papers

Motion Decay Simulations of a Moored Wave Energy Converter

Changqing Jiang, Ould el Moctar, Thomas E. Schellin, Guilherme Moura Paredes
Proc. ASME. OMAE2020, Volume 9: Ocean Renewable Energy, V009T09A015, August 3–7, 2020
Paper No: OMAE2020-18424
DOI: https://doi.org/10.1115/OMAE2020-18424
View Paper titled, Motion Decay Simulations of a Moored Wave Energy Converter
Click here to open pdf in another window PDF for Motion Decay Simulations of a Moored Wave Energy Converter
Topics: Damping, Engineering simulation, Mooring, Simulation, Wave energy converters
Proceedings Papers

High-Fidelity Modelling of Floating Offshore Wind Turbine Platforms

Simon Burmester, Guilherme Vaz, Ould el Moctar, Sebastien Gueydon, Arjen Koop, Yu Wang, H. C. Chen
Proc. ASME. OMAE2020, Volume 9: Ocean Renewable Energy, V009T09A068, August 3–7, 2020
Paper No: OMAE2020-18913
DOI: https://doi.org/10.1115/OMAE2020-18913
View Paper titled, High-Fidelity Modelling of Floating Offshore Wind Turbine Platforms
Click here to open pdf in another window PDF for High-Fidelity Modelling of Floating Offshore Wind Turbine Platforms
Topics: Computational fluid dynamics, Damping, Floating wind turbines, Modeling, Mooring, Turbulence
Proceedings Papers

Investigation of a Novel Wave Energy Generator Using Dielectric Elastomer

Changqing Jiang, Seiki Chiba, Mikio Waki, Koji Fujita, Ould el Moctar
Proc. ASME. OMAE2020, Volume 9: Ocean Renewable Energy, V009T09A012, August 3–7, 2020
Paper No: OMAE2020-18106
DOI: https://doi.org/10.1115/OMAE2020-18106
View Paper titled, Investigation of a Novel Wave Energy Generator Using Dielectric Elastomer
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Topics: Elastomers, Generators, Mooring, Wave energy
Proceedings Papers

Experimental Investigation of Tip Vortex Influence on VIV of a Circular Cylinder at High Reynolds Numbers

M. Youssef, Simon Tödter, Jens Neugebauer, Ould el Moctar, Thomas E. Schellin
Proc. ASME. OMAE2020, Volume 6A: Ocean Engineering, V06AT06A018, August 3–7, 2020
Paper No: OMAE2020-19133
DOI: https://doi.org/10.1115/OMAE2020-19133
View Paper titled, Experimental Investigation of Tip Vortex Influence on VIV of a Circular Cylinder at High Reynolds Numbers
Click here to open pdf in another window PDF for Experimental Investigation of Tip Vortex Influence on VIV of a Circular Cylinder at High Reynolds Numbers
Topics: Circular cylinders, Reynolds number, Vibration, Vortex-induced vibration, Wake turbulence
Proceedings Papers

Hydrodynamic Optimization of a Containership

Yanxin Feng, Ould el Moctar, Thomas E. Schellin
Proc. ASME. OMAE2020, Volume 2B: Structures, Safety, and Reliability, V02BT02A017, August 3–7, 2020
Paper No: OMAE2020-18616
DOI: https://doi.org/10.1115/OMAE2020-18616
View Paper titled, Hydrodynamic Optimization of a Containership
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Topics: Hull, Optimization, Waves
Proceedings Papers

Assessment of LNG Pump Tower Loads

Michael Thome, Jens Neugebauer, Ould el Moctar
Proc. ASME. OMAE2019, Volume 2: CFD and FSI, V002T08A050, June 9–14, 2019
Paper No: OMAE2019-96138
DOI: https://doi.org/10.1115/OMAE2019-96138
View Paper titled, Assessment of LNG Pump Tower Loads
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Topics: Delay differential equations, Liquefied natural gas, Morison equation, Pumps, Stress
Proceedings Papers

Wind and Current Loads on Barges and Ships

Ould el Moctar, Thomas E. Schellin, Jens Neugebauer
Proc. ASME. OMAE2019, Volume 2: CFD and FSI, V002T08A041, June 9–14, 2019
Paper No: OMAE2019-95716
DOI: https://doi.org/10.1115/OMAE2019-95716
View Paper titled, Wind and Current Loads on Barges and Ships
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Topics: Ships, Stress, Wind, Computation, Construction, Vessels, Water, Computer simulation, Flow (Dynamics), Hull
Proceedings Papers

Prediction of Hydrodynamic Damping of Moored Offshore Structures Using CFD

Changqing Jiang, Ould el Moctar, Thomas E. Schellin
Proc. ASME. OMAE2019, Volume 2: CFD and FSI, V002T08A047, June 9–14, 2019
Paper No: OMAE2019-95935
DOI: https://doi.org/10.1115/OMAE2019-95935
View Paper titled, Prediction of Hydrodynamic Damping of Moored Offshore Structures Using CFD
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Topics: Computational fluid dynamics, Damping, Mooring, Offshore structures, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Numerical Investigation of an Optimised Horizontal Axis Tidal Stream Turbine

Hassan El Sheshtawy, Ould el Moctar, Thomas E. Schellin, Satish Natarajan
Proc. ASME. OMAE2019, Volume 10: Ocean Renewable Energy, V010T09A004, June 9–14, 2019
Paper No: OMAE2019-95722
DOI: https://doi.org/10.1115/OMAE2019-95722
View Paper titled, Numerical Investigation of an Optimised Horizontal Axis Tidal Stream Turbine
Click here to open pdf in another window PDF for Numerical Investigation of an Optimised Horizontal Axis Tidal Stream Turbine
Topics: Hydrofoil, Tidal turbines
Journal Articles

Experimentally Measured Hydroelastic Effects on Impact-Induced Loads During Flat Water Entry and Related Uncertainties

Simon Tödter, Ould el Moctar, Jens Neugebauer, Thomas E. Schellin
Journal: Journal of Offshore Mechanics and Arctic Engineering
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. February 2020, 142(1): 011604.
Paper No: OMAE-18-1102
DOI: https://doi.org/10.1115/1.4044632
Published Online: September 27, 2019
View Article titled, Experimentally Measured Hydroelastic Effects on Impact-Induced Loads During Flat Water Entry and Related Uncertainties
Click here to open pdf in another window PDF for Experimentally Measured Hydroelastic Effects on Impact-Induced Loads During Flat Water Entry and Related Uncertainties
Topics: Pressure, Stress, Water, Uncertainty, Plating, Deformation
eBook Chapter

Investigation of Cloud Cavitation Passive Control Method Using Cavitating-Bubble Generators (CGs)

Series: ASME Press Select Proceedings
Publisher: ASME Press
Published: 2018
ISBN: 9780791861851
Click here to open pdf in another window PDF for Investigation of Cloud Cavitation Passive Control Method Using Cavitating-Bubble Generators (CGs)
Topics: Bubbles, Cavitation, Generators, Passive control
eBook Chapter

Simulation of an Internal Nozzle Flow Using an Euler-Lagrange Method

Series: ASME Press Select Proceedings
Publisher: ASME Press
Published: 2018
ISBN: 9780791861851
Click here to open pdf in another window PDF for Simulation of an Internal Nozzle Flow Using an Euler-Lagrange Method
Topics: Flow (Dynamics), Nozzles, Simulation
Proceedings Papers

Experimental Investigations of Hydroelastic Effects on Loads During Flat Water Entry

Simon Toedter, Ould el Moctar, Jens Neugebauer, Thomas E. Schellin
Proc. ASME. OMAE2018, Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering, V11AT12A036, June 17–22, 2018
Paper No: OMAE2018-78692
DOI: https://doi.org/10.1115/OMAE2018-78692
View Paper titled, Experimental Investigations of Hydroelastic Effects on Loads During Flat Water Entry
Click here to open pdf in another window PDF for Experimental Investigations of Hydroelastic Effects on Loads During Flat Water Entry
Topics: Stress, Water, Plating, Elasticity