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A Robust Procedure to Implement Dynamic Stall Models Into Actuator Line Methods for the Simulation of Vertical-Axis Wind Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The actuator line method (ALM), combining a lumped-parameter representation of the rotating blades with the computational fluid dynamics (CFD) resolution of the turbine flow field, stands out among the modern simulation ...
Numerical Modeling of the Effects of Leading-Edge Erosion and Trailing-Edge Damage on Wind Turbine Loads and Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Wind turbines operate in challenging environmental conditions. In hot and dusty climates, blades are constantly exposed to abrasive particles that, according to many field reports, cause significant damages to the leading ...
Small Wind Turbines in the Built Environment: Influence of Flow Inclination on the Potential Energy Yield
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Increasing interest is being paid by architects, project developers and local governments to understanding where small wind turbines can effectively be exploited to provide delocalized power in the built environment. The ...
Blade Design Criteria to Compensate the Flow Curvature Effects in H Darrieus Wind Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Darrieus wind turbines are experiencing a renewed interest in the wind energy scenario, in particular, whenever small and mediumsize installations are considered. In these contexts, the average wind speeds are generally ...
Aerodynamics of Darrieus Wind Turbines Airfoils: The Impact of Pitching Moment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Recent studies have demonstrated that, when rotating around an axis orthogonal to the flow direction, airfoils are virtually transformed into equivalent airfoils with a camber line defined by their arc of rotation. In these ...
Statistical Analysis of Component Failures: A 16 Year Survey on More Than 550 Wind Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A good prediction of the failure ratio of wind turbine (WT) components is pivotal to define a correct maintenance program and reduce the downtime periods. Even a small failure can lead to long downtime periods and high ...
Assessment of a Computationally Efficient Method for Industrial Simulations of Transient Heat Transfer During Autoclave Curing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical approach for transient computational fluid dynamics analyses of the autoclave curing process is presented, aimed at finding a trade-off between accuracy and computational cost that can make it industry-affordable. ...
Analysis of the Flow-Field Distortions Induced by Pneumatic Pressure Probes in Test Bench Experiments on Centrifugal Compressors: Are We Testing Right?
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental testing at the test rig still plays a key role in the development of new centrifugal compressor designs for industrial applications. Although a wide set of different probes is used as per common practice, the ...
Selection Criteria for Rotor Number and Rotational Direction in Arrays of Closely Spaced Darrieus Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The efficiency gains observed in a pair of closely spaced Darrieus turbines suggest the deployment of multiple turbines as an appealing solution for wind and, particularly, hydrokinetic applications, where the inflow ...
Experimental Analysis of the Pressure Field Inside a Vaneless Diffuser From Rotating Stall Inception to Surge
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An accurate estimation of rotating stall is one of the key points for highpressure centrifugal compressors, as it is often connected with the onset of detrimental subsynchronous vibrations which can prevent the machine ...