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Babak Ommani
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Proceedings Papers

Investigating Statistical Modelling of Excitation Forces in Inhomogeneous Waves

Sébastien Laflèche, Babak Ommani, Trygve Kristiansen, Sébastien Fouques
Proc. ASME. OMAE2024, Volume 5A: Ocean Engineering, V05AT06A067, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-124061
https://doi.org/10.1115/OMAE2024-124061
View Paper titled, Investigating Statistical Modelling of Excitation Forces in Inhomogeneous Waves
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Topics: Bridges (Structures), Excitation, Modeling, Waves
Proceedings Papers

Increase of Wave Drift Forces in Severe Seastates Due to Wave Frequency Viscous Damping

Nuno Fonseca, Babak Ommani
Proc. ASME. OMAE2022, Volume 1: Offshore Technology, V001T01A034, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-81461
https://doi.org/10.1115/OMAE2022-81461
View Paper titled, Increase of Wave Drift Forces in Severe Seastates Due to Wave Frequency Viscous Damping
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Topics: Damping, Wave drift forces, Wave frequency, Computational fluid dynamics, Flow (Dynamics), FPSO, Boundary element methods, Design, Emission spectroscopy, Engineering simulation
Proceedings Papers

On Common Research Needs for the Next Generation of Floating Support Structures

Vegard Aksnes, Hagbart Alsos, Erin Bachynski-Polić, Petter Andreas Berthelsen, Virgile Delhaye, Birgitte R. Furevik, Hans Petter Jostad, Trygve Kristiansen, Babak Ommani
Proc. ASME. OMAE2022, Volume 4: Ocean Space Utilization, V004T05A027, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79167
https://doi.org/10.1115/OMAE2022-79167
View Paper titled, On Common Research Needs for the Next Generation of Floating Support Structures
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Topics: Design, Engineering disciplines, Floating structures, Food products, Innovation, Mooring, Ocean engineering, Oceans, Renewable energy, Shorelines
Proceedings Papers

Application of Dipole Damper Panels in Modelling Gap Resonance

Babak Ommani, Senthuran Ravinthrakumar, Trygve Kristiansen, Idunn Olimb, Bernt Karsten Lyngvær
Proc. ASME. OMAE2022, Volume 5A: Ocean Engineering, V05AT06A018, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-78986
https://doi.org/10.1115/OMAE2022-78986
View Paper titled, Application of Dipole Damper Panels in Modelling Gap Resonance
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Topics: Dampers, Dipoles (Electromagnetism), Flow (Dynamics), Modeling, Resonance
Proceedings Papers

A Physical-Based Damping Model of Gap and Moonpool Resonance in WAMIT

Senthuran Ravinthrakumar, Babak Ommani, Trygve Kristiansen, Idunn Olimb, Bernt Karsten Lyngvær
Proc. ASME. OMAE2022, Volume 5A: Ocean Engineering, V05AT06A020, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-79673
https://doi.org/10.1115/OMAE2022-79673
View Paper titled, A Physical-Based Damping Model of Gap and Moonpool Resonance in WAMIT
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Topics: Damping, Resonance, Pistons, Vessels, Boundary-value problems, Computation, Computational fluid dynamics, Design, Engineering models, Ocean engineering
Proceedings Papers

Hydrodynamic Modelling and Estimating Response of Glacial Ice Near a Drilling Rig

Babak Ommani, Petter Andreas Berthelsen, Halvor Lie, Vegard Aksnes, Geir Løland
Proc. ASME. OMAE2019, Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology, V008T07A013, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95798
https://doi.org/10.1115/OMAE2019-95798
View Paper titled, Hydrodynamic Modelling and Estimating Response of Glacial Ice Near a Drilling Rig
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Topics: Drilling rigs, Ice, Modeling, Dynamics (Mechanics), Collisions (Physics), Semi-submersible offshore structures, Waves, Approximation, Computer simulation, Excitation
Proceedings Papers

On the Hydrodynamic Interaction Between Ship and Free-Surface Motions on Vessels With Moonpools

Senthuran Ravinthrakumar, Trygve Kristiansen, Babak Ommani
Proc. ASME. OMAE2019, Volume 7A: Ocean Engineering, V07AT06A061, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-95932
https://doi.org/10.1115/OMAE2019-95932
View Paper titled, On the Hydrodynamic Interaction Between Ship and Free-Surface Motions on Vessels With Moonpools
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Topics: Ships, Vessels, Boundary element methods, Resonance, Damping, Flow separation, Sloshing, Computational fluid dynamics, Corners (Structural elements), Dimensions
Journal Articles

A Two-Dimensional Experimental and Numerical Study of Moonpools With Recess

Senthuran Ravinthrakumar, Trygve Kristiansen, Babak Ommani
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. February 2020, 142(1): 011201.
Paper No: OMAE-18-1132
https://doi.org/10.1115/1.4044724
Published Online: October 9, 2019
View Article titled, A Two-Dimensional Experimental and Numerical Study of Moonpools With Recess
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Topics: Boundary element methods, Damping, Pistons, Resonance, Waves, Simulation, Mode shapes, Flow (Dynamics), Sloshing, Water
Proceedings Papers

A 2D Experimental and Numerical Study of Moonpools With Recess

Senthuran Ravinthrakumar, Trygve Kristiansen, Babak Ommani
Proc. ASME. OMAE2018, Volume 9: Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics, V009T13A009, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-78326
https://doi.org/10.1115/OMAE2018-78326
View Paper titled, A 2D Experimental and Numerical Study of Moonpools With Recess
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Topics: Boundary element methods, Corners (Structural elements), Damping, Engineering simulation, Flow (Dynamics), Flow separation, Mode shapes, Pistons, Resonance, Simulation
Proceedings Papers

Investigating a Simplified Model for Moonpool Piston Mode Response in Irregular Waves

Babak Ommani, Trygve Kristiansen, Kjetil Berget
Proc. ASME. OMAE2018, Volume 9: Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics, V009T13A010, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-78352
https://doi.org/10.1115/OMAE2018-78352
View Paper titled, Investigating a Simplified Model for Moonpool Piston Mode Response in Irregular Waves
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Topics: Pistons, Waves, Damping, Degrees of freedom, Flow (Dynamics), Vessels, Boundary-value problems, Diffraction, Flow separation, Ocean engineering
Proceedings Papers

Simulation of Low Frequency Motions in Severe Seastates Accounting for Wave-Current Interaction Effects

Babak Ommani, Nuno Fonseca, Carl Trygve Stansberg
Proc. ASME. OMAE2017, Volume 1: Offshore Technology, V001T01A088, June 25–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2017-62550
https://doi.org/10.1115/OMAE2017-62550
View Paper titled, Simulation of Low Frequency Motions in Severe Seastates Accounting for Wave-Current Interaction Effects
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Topics: Accounting, Simulation, Waves, Wave drift forces, Floating structures, Flow (Dynamics), Interpolation, Seas, Semi-submersible offshore structures
Proceedings Papers

Bilge Keel Induced Roll Damping of an FPSO With Sponsons

Babak Ommani, Nuno Fonseca, Trygve Kristiansen, Christopher Hutchison, Hanne Bakksjø
Proc. ASME. OMAE2016, Volume 1: Offshore Technology; Offshore Geotechnics, V001T01A025, June 19–24, 2016
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2016-54420
https://doi.org/10.1115/OMAE2016-54420
View Paper titled, Bilge Keel Induced Roll Damping of an FPSO With Sponsons
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Topics: Damping, FPSO, Keel, Rotation, Ships, Computational fluid dynamics, Dimensions, Finite volume methods, Laminar flow, Oscillations
Proceedings Papers

An Experimental and Numerical Investigation of a Box-Shaped Object in Moonpool: A Three-Dimensional Study

Trygve Kristiansen, Babak Ommani, Kjetil Berget, Rolf Baarholm
Proc. ASME. OMAE2015, Volume 1: Offshore Technology; Offshore Geotechnics, V001T01A038, May 31–June 5, 2015
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2015-41933
https://doi.org/10.1115/OMAE2015-41933
View Paper titled, An Experimental and Numerical Investigation of a Box-Shaped Object in Moonpool: A Three-Dimensional Study
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Topics: Collaboration, Flow (Dynamics), Model basin, Pistons, Resonance, Ships, Waves
Journal Articles

Linear Dynamic Stability Analysis of a Surface-Piercing Plate Advancing at High Forward Speed

Babak Ommani, Odd M. Faltinsen
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research-Article
J. Offshore Mech. Arct. Eng. December 2015, 137(6): 061802.
Paper No: OMAE-14-1004
https://doi.org/10.1115/1.4031578
Published Online: October 5, 2015
View Article titled, Linear Dynamic Stability Analysis of a Surface-Piercing Plate Advancing at High Forward Speed
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Topics: Dynamic stability, Yaw, Damping, Vessels, Vortices
Proceedings Papers

Waves’ Numerical Dispersion and Damping due to Discrete Dispersion Relation

Babak Ommani, Odd M. Faltinsen
Proc. ASME. OMAE2014, Volume 8A: Ocean Engineering, V08AT06A013, June 8–13, 2014
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2014-23152
https://doi.org/10.1115/OMAE2014-23152
View Paper titled, Waves’ Numerical Dispersion and Damping due to Discrete Dispersion Relation
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Topics: Damping, Dispersion relations, Waves, Dimensions, Numerical analysis
Proceedings Papers

Linear Dynamic Stability Analysis of a Surface Piercing Plate Advancing at High Forward Speed

Babak Ommani, Odd M. Faltinsen
Proc. ASME. OMAE2013, Volume 9: Odd M. Faltinsen Honoring Symposium on Marine Hydrodynamics, V009T12A039, June 9–14, 2013
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2013-11136
https://doi.org/10.1115/OMAE2013-11136
View Paper titled, Linear Dynamic Stability Analysis of a Surface Piercing Plate Advancing at High Forward Speed
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Topics: Dynamic stability, Damping, Dipoles (Electromagnetism), Displacement, Flow separation, Fluid-dynamic forces, Stability, Vessels, Vortices, Yaw
Proceedings Papers

Flow Field Analysis Around the Ship Fin Stabilizer Including Free Surface

Fatemah Hoseini Dadmarzi, Hassan Ghassemi, Parviz Ghadimi, Babak Ommani
Proc. ASME. OMAE2009, Volume 4: Ocean Engineering; Ocean Renewable Energy; Ocean Space Utilization, Parts A and B, 603-608, May 31–June 5, 2009
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2009-79970
https://doi.org/10.1115/OMAE2009-79970
View Paper titled, Flow Field Analysis Around the Ship Fin Stabilizer Including Free Surface
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Topics: Computational fluid dynamics, Flow (Dynamics), Ships, Hull, Pressure, Reynolds-averaged Navier–Stokes equations, Simulation, Waves