Free Wake Panel Method Simulations of a Highly Flexible Wing at Flutter

Ribeiro, Andre F.; Casalino, Damiano; Ferreira, Carlos

doi:10.2514/6.2022-3595

Cited by 4 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the moment, our implementation was compared to an open-source C++ panel code (Baayen, 2012), and we observed speedup of over an order of magnitude. The method also supports large displacement aeroelasticity (Ribeiro et al, 2022a), although this is not included in this work.…”

Section: Methodsmentioning

confidence: 99%

Nonlinear inviscid aerodynamics of a wind turbine rotor in surge, sway, and yaw motions using a free-wake panel method

2023

Self Cite

View full text Add to dashboard Cite

Abstract. We investigate the aerodynamics of a surging, heaving, and yawing wind turbine with numerical simulations based on a free-wake panel method. We focus on the UNAFLOW (UNsteady Aerodynamics of FLOating Wind turbines) case: a surging wind turbine which was modeled experimentally and with various numerical methods. Good agreement with experimental data is observed for amplitude and phase of the thrust with surge motion. We achieve numerical results of a wind turbine wake that accurately reproduce experimentally verified effects of surging motion. We then extend our simulations beyond the frequency range of the UNAFLOW experiments and reach results that do not follow a quasi-steady response for surge. Finally, simulations are done with the turbine in yaw and heave motion, and the impact of the wake motion on the blade thrust is examined. Our work seeks to contribute a different method to the pool of results for the UNAFLOW case while extending the analysis to conditions that have not been simulated before and providing insights into nonlinear aerodynamic effects of wind turbine motion.

show abstract

Section: Methodsmentioning

confidence: 99%

Nonlinear inviscid aerodynamics of a wind turbine rotor in surge, sway, and yaw motions using a free-wake panel method

2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…We employ a source and doublet panel method with free wake modelling [8]. The code employed in this work was recently validated for moving airfoils and wind turbine rotors [9], including several dynamic effects [10] and flexible wing aeroelasticity [11]. The thickness effects are fully captured, as the triangular or quadrilateral panels lie on the blade surfaces.…”

Section: Methodsmentioning

confidence: 99%

Vertical axis wind turbine wake steering by pitched struts and blades

Ribeiro,

Ferreira,

Casalino

2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Vertical axis wind turbines (VAWTs) have been identified as a technology that, in association with wake steering, can increase power density of wind farms. In this study, we validate a free wake method for VAWT wake prediction, which leads to satisfactory results. We then use this method to simulate wake steering by means of fixed pitched blades and struts. We demonstrate that combining pitched wakes and struts can lead to very advantageous wake behavior, but only when the interactions between the tip vortices are taken into account. The possibility to inject more high momentum flow into the wake while moving the vortex system away from the next turbine could make pitched blades and struts a powerful tool for future wind farms.

show abstract

“…At the moment, our implementation was compared to an open source C++ panel code (Baayen, 2012) and we observed over an order of magnitude in speed up. The method also supports large displacement aeroelasticity (Ribeiro et al, 2022a), although this is not included in this work.…”

Section: Methodsmentioning

confidence: 99%

Nonlinear Inviscid Aerodynamic Effects of Floating Offshore Wind Turbine Motion

Ribeiro

Casalino

Ferreira

2023

Preprint

View full text Add to dashboard Cite

Abstract. We investigate the aerodynamics of a surging, heaving, and yawing wind turbine with numerical simulations based on a free wake panel method. We focus on the UNAFLOW case: a surging wind turbine which was modelled experimentally and with various numerical methods. Good agreement with experimental data is observed for amplitude and phase of the thrust with surge motion. We achieve numerical results of a wind turbine wake that accurately reproduce experimentally verified effects of surging motion. We then extend our simulations beyond the frequency range of the UNAFLOW experiments and reach results that do not follow a quasi-steady response for surge. Finally, simulations are done with the turbine in yaw and heave motion and the impact of the wake motion on the blade thrust is examined. Our work seeks to contribute a different method to the pool of results for the UNAFLOW case, while extending the analysis to conditions that have not been simulated before.

show abstract

Free Wake Panel Method Simulations of a Highly Flexible Wing at Flutter

Cited by 4 publications

References 19 publications

Nonlinear inviscid aerodynamics of a wind turbine rotor in surge, sway, and yaw motions using a free-wake panel method

Nonlinear inviscid aerodynamics of a wind turbine rotor in surge, sway, and yaw motions using a free-wake panel method

Vertical axis wind turbine wake steering by pitched struts and blades

Nonlinear Inviscid Aerodynamic Effects of Floating Offshore Wind Turbine Motion

Contact Info

Product

Resources

About