Aerodynamic and FSI Analysis of Wind Turbines with the ALE-VMS and ST-VMS Methods

Bazilevs, Yuri; Takizawa, Kenji; Tezduyar, Tayfun E.; Hsu, Ming‐Chen; Kostov, Nikolay; McIntyre, Spenser

doi:10.1007/s11831-014-9119-7

Cited by 111 publications

(66 citation statements)

References 129 publications

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“…The level-set method [3-5, 48, 60, 61] is adopted to track the evolution of the free surface, which is treated as an air-water interface. The aerodynamics and hydrodynamics are governed by the Navier-Stokes equations of incompressible, two-fluid flows, in which the fluid density and A C C E P T E D M A N U S C R I P T [21,30,31,33,[66][67][68] formulation enhanced with weakly enforced of essential boundary conditions [15,22,28] is employed to discretize the free-surface flow equations. The sliding-interface formulation [23] is employed to account for the presence of tower and nacelle, thus enabling the so-called "full machine" simulation [43].…”

Section: Manuscriptmentioning

confidence: 99%

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

Yan¹,

Deng²,

Korobenko³

et al. 2017

Computers & Fluids

123

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A computational free-surface flow framework that enables 3D, time-dependent simulation of horizontal-axis tidal-stream turbines (HATTs) is presented and deployed using a complexgeometry HATT. Free-surface flow simulations using the proposed framework, without any empiricism, are able to accurately capture the effect of the free surface on the hydrodynamic performance of the turbine, as demonstrated through excellent agreement with the experimental data. To carry out the free-surface computations, we have developed a novel level-set redistancing procedure compatible with the sliding-interface technique used for handling the rotor-stator interaction in the HATT full-machine simulations. To illustrate the versatility of the proposed approach, additional computations are carried out where the HATT is subjected to wave action.

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Section: Manuscriptmentioning

confidence: 99%

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

Yan¹,

Deng²,

Korobenko³

et al. 2017

Computers & Fluids

123

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“…The computations reported in 2014 were for bioinspired flapping-wing aerodynamics [101][102][103], patient-specific aneurysms blocked with stent [104], spacecraft parachute FSI [102,105], wind-turbine rotor aerodynamics and rotor and tower aerodynamics [102,103,106], FSI of cerebral arteries with aneurysm [102], and heart valve flow analysis [17]. The spacecraft parachute FSI analyses included clusters of parachutes with the original design and with modified geometry porosity, different designs of the suspension lines, disreefing of a single parachute from Stage 1 to 2 to 3, disreefing of a 2-parachute cluster from Stage 2 to 3, and a drogue parachute at Stage 1, 2 and 3 under different flight conditions.…”

Section: Years 2011-2018mentioning

confidence: 99%

Space–time computations in practical engineering applications: a summary of the 25-year history

Tezduyar

Takizawa

2018

Comput Mech

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In an article published online in July 2018 it was stated that the algorithm proposed in the article is "enabling practical implementation of the space-time FEM for engineering applications." In fact, space-time computations in practical engineering applications were already enabled in 1993. We summarize the computations that have taken place since then. These computations started with finite element discretization and are now also with isogeometric discretization. They were all in 3D space and were all carried out on parallel computers. For quarter of a century, these computations brought solution to many classes of complex problems ranging from Orion spacecraft parachutes to wind turbines, from patient-specific cerebral aneurysms to heart valves, from thermo-fluid analysis of ground vehicles and tires to turbocharger turbines and exhaust manifolds.

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“…Examples, with the cited references reporting recent computations, are spacecraft aerodynamics [53], spacecraft parachutes [12,[54][55][56][57][58][59][60], cardiovascular fluid mechanics [4,[60][61][62][63][64][65][66][67], flapping-wing aerodynamics [4,60,64,[68][69][70], wind-turbine aerodynamics [60,64,71,72], and data compression [73].…”

Section: Introductionmentioning

confidence: 99%

“…These desirable features do not come easily or do not come at all with the interface-capturing (nonmoving-mesh) methods. Comments on and examples for what the DSD/SST method brings to the table beyond what the ALE method does can be found in [4], and also in [4,[10][11][12]60,64,66,[68][69][70][71][72][73], including examples from aerodynamics of flapping wings and wind turbines and fluid mechanics of heart valves.…”

Section: Introductionmentioning

confidence: 99%

Space–time computational analysis of MAV flapping-wing aerodynamics with wing clapping

2015

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Computational analysis of flapping-wing aerodynamics with wing clapping was one of the classes of computations targeted in introducing the space-time (ST) interface-tracking method with topology change (ST-TC). The ST-TC method is a new version of the deforming-spatialdomain/stabilized ST (DSD/SST) method, enhanced with a master-slave system that maintains the connectivity of the "parent" fluid mechanics mesh when there is contact between the moving interfaces. With that enhancement and because of its ST nature, the ST-TC method can deal with an actual contact between solid surfaces in flow problems with moving interfaces. It accomplishes that while still possessing the desirable features of interface-tracking (moving-mesh) methods, such as better resolution of the boundary layers. Earlier versions of the DSD/SST method, with effective mesh update, were already able to handle moving-interface problems when the solid surfaces are in near contact or create near TC. Flapping-wing aerodynamics of an actual locust, with the forewings and hindwings crossing each other very close and creating near TC, is an example of successfully computed problems. Flapping-wing aerodynamics of a micro aerial vehicle (MAV) with the wings of an actual locust is another example. Here we show how the ST-TC method enables 3D computational analysis of flapping-wing aerodynamics of an MAV with wing clapping. In the analysis,

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Aerodynamic and FSI Analysis of Wind Turbines with the ALE-VMS and ST-VMS Methods

Cited by 111 publications

References 129 publications

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

Free-surface flow modeling and simulation of horizontal-axis tidal-stream turbines

Space–time computations in practical engineering applications: a summary of the 25-year history

Space–time computational analysis of MAV flapping-wing aerodynamics with wing clapping

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