Modeling and validation of a cross flow turbine using free vortex model and a modified dynamic stall model

Urbina, Raul; Peterson, Michael; Kimball, Richard; deBree, Geoffrey S.; Cameron, Matthew

doi:10.1016/j.renene.2012.08.011

Cited by 10 publications

(3 citation statements)

References 10 publications

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“…Seeing that the details of numerical set-up and numerous obtained results can be found in [27], only a short summary is given here. Other extremely useful examples of flow simulations around VAWTs can be found in [28][29][30][31][32][33][34].…”

Section: Flow Simulationmentioning

confidence: 99%

Multi-objective Optimization and Experimental Testing of a Laminated Vertical-Axis Wind Turbine Blade

Trivković

Svorcan

Baltić

et al. 2021

Current Problems in Experimental and Computational Engineering

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Vertical-axis wind turbines, despite being somewhat uncommon and less efficient renewable energy converters, still offer many advantages to small consumers and possibilities for further improvement. Their rotor is usually made up of fiberglass composite blades that can be optimized both aerodynamically and/or structurally. Although the aerodynamics of vertical-axis wind turbine rotors is unsteady, complex and challenging to simulate, it is possible to make a sufficiently accurate estimation of variable aerodynamic loads acting on the blade and use them for its structural dimensioning. This research combines a multi-objective constrained optimization procedure by particle swarm and finite element method with experimental analyses with the purpose of defining the best blade, i.e. the blade of minimal mass, least tip deflection under the loading case corresponding to the aerodynamically most demanding operational regime, greatest difference between its natural frequencies and rated rotor angular frequency, lowest manufacturing cost and complexity, etc. Imposed constraints also include acceptable failure criteria along the blade. Design variables refer to ply lay-up scheme, i.e. lamina thicknesses and orientations. Final solution, chosen from the obtained Pareto set, was manufactured and experimentally validated. The consistency of strains, measured in several different cases of bending, and corresponding numerical values was mostly below 8%. The study demonstrates the applicability of the employed multi-objective optimization methodology in wind turbine blade design. It also proposes an affordable and structurally reliable composite lay-up scheme specifically designed for small-scale vertical-axis wind turbines.

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Section: Flow Simulationmentioning

confidence: 99%

Multi-objective Optimization and Experimental Testing of a Laminated Vertical-Axis Wind Turbine Blade

Trivković

Svorcan

Baltić

et al. 2021

Current Problems in Experimental and Computational Engineering

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“…This mechanism, known as dynamic stall, is described in Ferreira et al (2009). Urbina et al (2013) combine a lifting line approach with a dynamic stall model derived by the Beddoes-Leishman model widely used for helicopter rotors and wind turbines. Numerical results compared to experimental data (e.g.…”

Section: Inviscid-flow Modelsmentioning

confidence: 99%

Hydrodynamic modelling of marine renewable energy devices: A state of the art review

et al. 2015

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a b s t r a c tThis paper reviews key issues in the physical and numerical modelling of marine renewable energy systems, including wave energy devices, current turbines, and offshore wind turbines. The paper starts with an overview of the types of devices considered, and introduces some key studies in marine renewable energy modelling research. The development of new International Towing Tank Conference (ITTC) guidelines for model testing these devices is placed in the context of guidelines developed or under development by other international bodies as well as via research projects. Some particular challenges are introduced in the experimental and numerical modelling and testing of these devices, including the simulation of Power-Take-Off systems (PTOs) for physical models of all devices, approaches for numerical modelling of devices, and the correct modelling of wind load on offshore wind turbines. Finally, issues related to the uncertainty in performance prediction from model test results are discussed.

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“…Upon obtaining the Federal Energy Regulatory Commission (FERC) pilot license in 2012, the CBTEP became the first MHK project within the U.S. to gain approval to connect to the interstate power grid. (Urbina et al 2013). The fish assessment team is using multiple gear types and approaches deployed at the site of the CBTEP and a control site to determine the effects of MHK devices on fish, particularly their behavior and water column distribution .…”

Section: Study Backgroundmentioning

confidence: 99%

The Maine Tidal Power Initiative: transdisciplinary sustainability science research for the responsible development of tidal power

Jansujwicz

Johnson

2014

Sustain Sci

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The Maine Tidal Power Initiative (MTPI), an interdisciplinary team of engineers, marine scientists, oceanographers, and social scientists, is using a transdisciplinary sustainability science approach to collect biophysical and social data necessary for understanding interactions between human and natural systems in the context of tidal power development in Maine. MTPI offers a unique opportunity to better understand how group structure and process influence outcomes in transdisciplinary sustainability science research. Through extensive participant observation and semi-structured interviews we: (1) describe MTPI's organizational structure; (2) examine MTPI's research approach and engagement with stakeholders from different sectors of society (i.e., industry, government, and the local community); and (3) identify challenges and opportunities for involving different disciplinary expertise and diverse stakeholders in transformational sustainability science research. We found that MTPI's holistic mission, non-hierarchical structure, and iterative stakeholder engagement process led to important benefits and significant challenges. Positive outcomes include knowledge development, a transferable research framework, shared resources, personal reward, and a greater understanding of the local environment and community. Challenges identified include balancing diverse interests and priorities, maintaining engagement, managing stakeholder relationships, and limited resources. Lessons learned from the process of integrative collaborative research in Maine can offer guidance on what should be considered when carrying out similar transdisciplinary sustainability science projects in other research contexts.

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Modeling and validation of a cross flow turbine using free vortex model and a modified dynamic stall model

Cited by 10 publications

References 10 publications

Multi-objective Optimization and Experimental Testing of a Laminated Vertical-Axis Wind Turbine Blade

Multi-objective Optimization and Experimental Testing of a Laminated Vertical-Axis Wind Turbine Blade

Hydrodynamic modelling of marine renewable energy devices: A state of the art review

The Maine Tidal Power Initiative: transdisciplinary sustainability science research for the responsible development of tidal power

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