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Journal Articles

Numerical Seakeeping Analysis for a Floating Helicopter After Ditching in Water

Eduardo Tadashi Katsuno, Andreas Peters, Ould el Moctar
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. February 2025, 147(1): 011401.
Paper No: OMAE-24-1016
https://doi.org/10.1115/1.4065709
Published Online: July 1, 2024
View Article titled, Numerical Seakeeping Analysis for a Floating Helicopter After Ditching in Water
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Topics: Boundary element methods, Computational fluid dynamics, Waves, Water, Simulation
Proceedings Papers

Seakeeping Behavior of a Helicopter Landing in Waves

Eduardo Tadashi Katsuno, Andreas Peters, Ould El Moctar
Proc. ASME. OMAE2023, Volume 7: CFD & FSI, V007T08A044, June 11–16, 2023
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2023-105235
https://doi.org/10.1115/OMAE2023-105235
View Paper titled, Seakeeping Behavior of a Helicopter Landing in Waves
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Topics: Waves, Boundary element methods, Computational fluid dynamics, Simulation, Water, Stress, Surface roughness
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
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. August 2023, 145(4): 041401.
Paper No: OMAE-22-1115
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

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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-78835
https://doi.org/10.1115/OMAE2022-78835
View Paper titled, Wave-Induced Loads Acting on Monopile Configurations Considering Wake Effects
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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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-80115
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
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Topics: Circular cylinders, Cylinders, Degrees of freedom, Flow (Dynamics), Oscillations, Topology, Vortex-induced vibration, Wakes
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-78536
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79571
https://doi.org/10.1115/OMAE2022-79571
View Paper titled, Simulation of a Moored Multibody Offshore Structure Articulated by Different Joints in Waves
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Topics: Dynamics (Mechanics), Floating structures, Mooring, Offshore structures, Simulation, Viscous flow, Waves
Journal Articles

Effect of Bath Agitation on the Transient Cooling by Quenching Process

Amine Kacem, Brahim Bourouga, Ahmed Ould El Moctar
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. December 2021, 143(12): 122101.
Paper No: HT-20-1574
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
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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
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. December 2021, 143(6): 061402.
Paper No: OMAE-20-1136
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
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Topics: Delay differential equations, Liquefied natural gas, Morison equation, Pipes, Pumps, Simulation, Stress, Flow (Dynamics), Emergencies, Bracing (Construction)
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18616
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

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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-19133
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
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Topics: Circular cylinders, Reynolds number, Vibration, Vortex-induced vibration, Wake 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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18106
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

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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18913
https://doi.org/10.1115/OMAE2020-18913
View Paper titled, High-Fidelity Modelling of Floating Offshore Wind Turbine Platforms
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Topics: Computational fluid dynamics, Damping, Floating wind turbines, Modeling, Mooring, Turbulence
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2020-18424
https://doi.org/10.1115/OMAE2020-18424
View Paper titled, Motion Decay Simulations of a Moored Wave Energy Converter
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Topics: Damping, Engineering simulation, Mooring, Simulation, Wave energy converters
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95722
https://doi.org/10.1115/OMAE2019-95722
View Paper titled, Numerical Investigation of an Optimised Horizontal Axis Tidal Stream Turbine
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Topics: Hydrofoil, Tidal turbines
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-96138
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95716
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
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95935
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
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
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. February 2020, 142(1): 011604.
Paper No: OMAE-18-1102
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
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Topics: Pressure, Stress, Water, Uncertainty, Plating, Deformation
Journal Articles

Transient Cooling of Metallic Piece during a Quenching Process: Effect of Bath Agitation

Ahmed Ould El Moctar, Brahim Bourouga, Benjamin Guenerie
Journal: Materials Performance and Characterization
Publisher: ASTM International
Article Type: Technical Papers
Matls. Perf. Charact.. March 2019, 8(2): 203–212.
Paper No: MPC20180017
https://doi.org/10.1520/MPC20180017
Published Online: March 1, 2019
View Article titled, Transient Cooling of Metallic Piece during a Quenching Process: Effect of Bath Agitation
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