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Guilherme Vaz
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Proceedings Papers

Simulating Waves at the Beaches of the Ericeira World Surfing Reserve

Tiago Gomes, Hans Bihs, Widar Wang, Guilherme Vaz
Proc. ASME. OMAE2024, Volume 9: Philip Liu Honoring Symposium on Water Wave Mechanics and Hydrodynamics; Blue Economy Symposium, V009T12A012, June 9–14, 2024
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2024-126559
https://doi.org/10.1115/OMAE2024-126559
View Paper titled, Simulating Waves at the Beaches of the Ericeira World Surfing Reserve
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Topics: Flow (Dynamics), Waves
Journal Articles

Influence of Interpolation Scheme on the Accuracy of Overset Method for Computing Rudder-Propeller Interaction

Sébastien Lemaire, Guilherme Vaz, Menno Deij - van Rijswijk, Stephen R. Turnock
Journal: Journal of Verification, Validation and Uncertainty Quantification
Publisher: ASME
Article Type: Research-Article
J. Verif. Valid. Uncert. March 2023, 8(1): 011002.
Paper No: VVUQ-22-1018
https://doi.org/10.1115/1.4056681
Published Online: January 27, 2023
View Article titled, Influence of Interpolation Scheme on the Accuracy of Overset Method for Computing Rudder-Propeller Interaction
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Topics: Computation, Errors, Flow (Dynamics), Interpolation, Pressure, Propellers, Uncertainty
Proceedings Papers

Code and Solution Verification of Sliding and Overset Grid Methods on Wind Turbine Flows

Tiago Gomes, Sébastien Lemaire, Guilherme Vaz
Proc. ASME. OMAE2022, Volume 7: CFD and FSI, V007T08A059, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-81337
https://doi.org/10.1115/OMAE2022-81337
View Paper titled, Code and Solution Verification of Sliding and Overset Grid Methods on Wind Turbine Flows
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Topics: Computational fluid dynamics, Flow (Dynamics), Wind turbines
Proceedings Papers

Comprehensive Verification and Validation of a CFD Analysis

Tiago Amaral, Manuel Rentschler, Guilherme Vaz, João Baltazar
Proc. ASME. OMAE2022, Volume 8: Ocean Renewable Energy, V008T09A072, June 5–10, 2022
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2022-80578
https://doi.org/10.1115/OMAE2022-80578
View Paper titled, Comprehensive Verification and Validation of a CFD Analysis
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Topics: Computational fluid dynamics, Cylinders, Damping, Wave energy converters
Journal Articles

The Development of a Partially Averaged Navier–Stokes KSKL Model

Maarten Klapwijk, Thomas Lloyd, Guilherme Vaz
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2022, 144(5): 051501.
Paper No: FE-21-1272
https://doi.org/10.1115/1.4052484
Published Online: January 12, 2022
View Article titled, The Development of a Partially Averaged Navier–Stokes KSKL Model
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Topics: Eddies (Fluid dynamics), Reynolds-averaged Navier–Stokes equations, Turbulence, Viscosity, Kinetic energy, Flow (Dynamics), Wings
Proceedings Papers

Verification Study of CFD Simulation of Semi-Submersible Floating Offshore Wind Turbine Under Regular Waves

Yu Wang, Hamn-Ching Chen, Guilherme Vaz, Simon Mewes
Proc. ASME. IOWTC2021, ASME 2021 3rd International Offshore Wind Technical Conference, V001T01A010, February 16–17, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2021-3558
https://doi.org/10.1115/IOWTC2021-3558
View Paper titled, Verification Study of CFD Simulation of Semi-Submersible Floating Offshore Wind Turbine Under Regular Waves
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Topics: Computational fluid dynamics, Floating wind turbines, Semi-submersible offshore structures, Simulation, Waves
Journal Articles

Code Verification of Non-Newtonian Fluid Solvers for Single- and Two-Phase Laminar Flows

Stefano Lovato, Serge L. Toxopeus, Just W. Settels, Geert H. Keetels, Guilherme Vaz
Journal: Journal of Verification, Validation and Uncertainty Quantification
Publisher: ASME
Article Type: Research-Article
J. Verif. Valid. Uncert. June 2021, 6(2): 021002.
Paper No: VVUQ-20-1040
https://doi.org/10.1115/1.4050131
Published Online: March 15, 2021
View Article titled, Code Verification of Non-Newtonian Fluid Solvers for Single- and Two-Phase Laminar Flows
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Topics: Errors, Flow (Dynamics), Fluids, Viscosity, Non-Newtonian fluids, Two-phase flow, Pressure, Rheology
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
Journal Articles

Transition and Turbulence Modeling for the Prediction of Cavitating Tip Vortices

Rens Liebrand, Maarten Klapwijk, Thomas Lloyd, Guilherme Vaz
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2021, 143(1): 011202.
Paper No: FE-20-1067
https://doi.org/10.1115/1.4048133
Published Online: October 5, 2020
View Article titled, Transition and Turbulence Modeling for the Prediction of Cavitating Tip Vortices
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Topics: Boundary layers, Eddies (Fluid dynamics), Errors, Flow (Dynamics), Modeling, Simulation, Turbulence, Vortices, Wings, Delay differential equations
Proceedings Papers

On the Role of Discretization Errors in the Quantification of Parameter Uncertainties

Luís Eça, Filipe S. Pereira, Guilherme Vaz, Rui Lopes, Serge Toxopeus
Proc. ASME. VVS2020, ASME 2020 Verification and Validation Symposium, V001T03A003, May 20–22, 2020
Publisher: American Society of Mechanical Engineers
Paper No: VVS2020-8825
https://doi.org/10.1115/VVS2020-8825
View Paper titled, On the Role of Discretization Errors in the Quantification of Parameter Uncertainties
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Topics: Errors, Uncertainty, Approximation, Flow (Dynamics), Friction, Kinetic energy, Pressure, Propellers, Reynolds-averaged Navier–Stokes equations, Ships
Journal Articles

On the Numerical Behavior of RANS-Based Transition Models

Rui Lopes, Luís Eça, Guilherme Vaz
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2020, 142(5): 051503.
Paper No: FE-19-1639
https://doi.org/10.1115/1.4045576
Published Online: February 3, 2020
View Article titled, On the Numerical Behavior of RANS-Based Transition Models
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Topics: Airfoils, Boundary-value problems, Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Turbulence, Wings, Reynolds number, Skin friction (Fluid dynamics), Uncertainty, Flat plates
Proceedings Papers

CFD Simulation of Semi-Submersible Floating Offshore Wind Turbine Under Pitch Decay Motion

Yu Wang, Hamn-Ching Chen, Guilherme Vaz, Simon Burmester
Proc. ASME. IOWTC2019, ASME 2019 2nd International Offshore Wind Technical Conference, V001T01A002, November 3–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IOWTC2019-7515
https://doi.org/10.1115/IOWTC2019-7515
View Paper titled, CFD Simulation of Semi-Submersible Floating Offshore Wind Turbine Under Pitch Decay Motion
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Topics: Computational fluid dynamics, Damping, Offshore wind turbines, Semi-submersible offshore structures, Simulation
Journal Articles

Force Measurements of the Flow Around Arrays of Three and Four Columns With Different Geometry Sections, Spacing Ratios, and Incidence Angles

Rodolfo Trentin Gonçalves, Shinichiro Hirabayashi, Guilherme Vaz, Hideyuki Suzuki
Journal: Journal of Offshore Mechanics and Arctic Engineering
Publisher: ASME
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. April 2020, 142(2): 021401.
Paper No: OMAE-19-1048
https://doi.org/10.1115/1.4045212
Published Online: November 16, 2019
View Article titled, Force Measurements of the Flow Around Arrays of Three and Four Columns With Different Geometry Sections, Spacing Ratios, and Incidence Angles
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Topics: Cylinders, Diamonds, Drag (Fluid dynamics), Flow (Dynamics), Lift (Fluid dynamics), Geometry, Uncertainty, Signals, Wakes, Computational fluid dynamics
Proceedings Papers

Numerical and Parameter Uncertainties: Are They Independent?

Luís Eça, Rui Lopes, Filipe Soares Pereira, Guilherme Vaz
Proc. ASME. VVS2019, ASME 2019 Verification and Validation Symposium, V001T06A002, May 15–17, 2019
Publisher: American Society of Mechanical Engineers
Paper No: VVS2019-5125
https://doi.org/10.1115/VVS2019-5125
View Paper titled, Numerical and Parameter Uncertainties: Are They Independent?
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Topics: Uncertainty, Errors, Computational fluid dynamics, Turbulence, Airfoils, Boundary-value problems, Eddies (Fluid dynamics), Engineering simulation, Flat plates, Flow (Dynamics)
Proceedings Papers

CFD Analysis of a Captive Bullet Entry in Calm Water With and Without Turbulence

René Bettencourt Rauffus, António Maximiano, Luís Eça, Guilherme Vaz
Proc. ASME. OMAE2019, Volume 2: CFD and FSI, V002T08A015, June 9–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2019-96099
https://doi.org/10.1115/OMAE2019-96099
View Paper titled, CFD Analysis of a Captive Bullet Entry in Calm Water With and Without Turbulence
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Topics: Bullets, Computational fluid dynamics, Turbulence, Water, Wakes, Uncertainty, Collapse, Lifeboats, Computer simulation, Eddies (Fluid dynamics)
Journal Articles

Investigating the Effect of the Closure in Partially-Averaged Navier–Stokes Equations

Filipe S. Pereira, Luís Eça, Guilherme Vaz
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2019, 141(12): 121402.
Paper No: FE-18-1724
https://doi.org/10.1115/1.4043539
Published Online: June 3, 2019
View Article titled, Investigating the Effect of the Closure in Partially-Averaged Navier–Stokes Equations
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Topics: Flow (Dynamics), Navier-Stokes equations, Resolution (Optics), Simulation, Turbulence, Modeling, Errors, Reynolds-averaged Navier–Stokes equations, Engineering simulation
Proceedings Papers

Validation Exercises for a Free Falling Wedge Into Calm Water

João Muralha, Luís Eça, António Maximiano, Guilherme Vaz
Proc. ASME. OMAE2018, Volume 2: CFD and FSI, V002T08A013, June 17–22, 2018
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2018-78598
https://doi.org/10.1115/OMAE2018-78598
View Paper titled, Validation Exercises for a Free Falling Wedge Into Calm Water
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Topics: Water, Wedges, Sensors, Errors, Pressure, Simulation, Uncertainty, Modeling, Boundary-value problems, Flow (Dynamics)
Proceedings Papers

CFD Verification and Validation Study for a Captive Bullet Entry in Calm Water

António Maximiano, Guilherme Vaz, Jule Scharnke
Proc. ASME. OMAE2017, Volume 1: Offshore Technology, V001T01A006, June 25–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2017-61666
https://doi.org/10.1115/OMAE2017-61666
View Paper titled, CFD Verification and Validation Study for a Captive Bullet Entry in Calm Water
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Topics: Bullets, Computational fluid dynamics, Water, Modeling, Errors, Stress, Simulation, Lifeboats, Pressure, Uncertainty
Proceedings Papers

Determining Thruster-Hull Interaction for a Drill-Ship Using CFD

Arjen Koop, Hans Cozijn, Patrick Schrijvers, Guilherme Vaz
Proc. ASME. OMAE2017, Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV, V002T08A022, June 25–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2017-61485
https://doi.org/10.1115/OMAE2017-61485
View Paper titled, Determining Thruster-Hull Interaction for a Drill-Ship Using CFD
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Topics: Computational fluid dynamics, Drillships, Hull, Actuators, Disks, Rotors, Propellers, Thrust, Nozzles, Water
Proceedings Papers

Validation Exercises for the Calculation of the Flow Around a Squared Column With Rounded Corners at High Reynolds Numbers With the RANS Equations

Luís Eça, Guilherme Vaz, Arjen Koop, Filipe Pereira, Hugo Abreu
Proc. ASME. OMAE2017, Volume 2: Prof. Carl Martin Larsen and Dr. Owen Oakley Honoring Symposia on CFD and VIV, V002T08A015, June 25–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: OMAE2017-61937
https://doi.org/10.1115/OMAE2017-61937
View Paper titled, Validation Exercises for the Calculation of the Flow Around a Squared Column With Rounded Corners at High Reynolds Numbers With the RANS Equations
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Topics: Corners (Structural elements), Flow (Dynamics), Reynolds number, Reynolds-averaged Navier–Stokes equations, Eddies (Fluid dynamics), Errors, Viscosity, Boundary-value problems, Drag (Fluid dynamics), Engineering simulation