A concurrent precursor inflow method for Large Eddy Simulations and applications to finite length wind farms

@article{Stevens2014ACP,
  title={A concurrent precursor inflow method for Large Eddy Simulations and applications to finite length wind farms},
  author={Richard J.A.M. Stevens and Jason Graham and Charles Meneveau},
  journal={Renewable Energy},
  year={2014},
  volume={68},
  pages={46-50}
}

Figures from this paper

Turbulent Inflow Precursor Method with Time-Varying Direction for Large-Eddy Simulations and Applications to Wind Farms
A major challenge in turbulence-resolving flow simulations is the generation of unsteady and coherent turbulent inflow conditions. Precursor methods have proven to be reliable inflow generators but
Inflow turbulence generation techniques for large eddy simulation of flow and dispersion around a model building in a turbulent atmospheric boundary layer
The present paper investigates the performance of various inflow turbulence generation techniques (ITGT) for large eddy simulation (LES) of flow and dispersion around a model building in a turbulent
An Overview of Turbulent Inflow Boundary Conditions for Large Eddy Simulations (Invited)
TLDR
A review of realistic turbulent inflow conditions for large eddy simulations (LES) and other large-scale-resolving approaches, broadly classified into library-based methods, recycling-rescaling- based methods, and synthetic turbulence generators.
Large-eddy simulations of wind-farm wake characteristics associated with a low-level jet
In this study, we performed a suite of flow simulations for a 12-wind-turbine array with varying inflow conditions and lateral spacings, and compared the impacts of the flow on velocity deficit and
LES Modelling of Highly Transient Wind Speed Ramps in Wind Farms
Large eddy simulations of wind farms are often performed with canonical atmospheric conditions, where the background flow is based on precursor simulations with idealized model setups yielding
Large Eddy Simulation of a wind tunnel wind farm experiment with one hundred static turbine models
. A common challenge for the validation of wind farm simulations with field data is the complex, variable and not precisely defined inflow conditions. In this study, we make use of published wind tunnel
Characterizing the coherent structures in large eddy simulations of aligned windfarms
The present work studies the large coherent structures in large eddy simulations of windfarms using proper orthogonal decomposition (POD) method. In order to evaluate the effect of wind turbines on
Comparison of Large Eddy Simulations against measurements from the Lillgrund offshore wind farm
Abstract. Numerical simulation tools such as Large Eddy Simulations (LES) have been extensively used in recent years to simulate and analyze turbine-wake interactions within large wind farms.
A Control Forced Concurrent Precursor Method for LES Inflow
With the increased application of large eddy simulation techniques, the generation of realistic turbulence at inflow boundaries is crucial for the accuracy of a simulation. The Control Forced
Large eddy simulation of the neutral atmospheric boundary layer
In large eddy simulations (LES) of the atmospheric boundary layer (ABL), the choice of inflow method and the specification of surface roughness are crucial for obtaining accurate results. The
...
...

References

SHOWING 1-10 OF 41 REFERENCES
Large eddy simulation study of fully developed wind-turbine array boundary layers
It is well known that when wind turbines are deployed in large arrays, their efficiency decreases due to complex interactions among themselves and with the atmospheric boundary layer (ABL). For wind
Generation of Turbulent Inflow Data for Spatially-Developing Boundary Layer Simulations
A method for generating three-dimensional, time-dependent turbulent inflow data for simulations of complex spatially developing boundary layers is described. The approach is to extract instantaneous
Large eddy simulation study of scalar transport in fully developed wind-turbine array boundary layers
Wind harvesting is fast becoming an important alternative source of energy. As wind farms become larger, they begin to attain scales at which two-way interactions with the atmospheric boundary layer
Large Eddy Simulations of large wind-turbine arrays in the atmospheric boundary layer
Large Eddy Simulations (LES) of arrays of wind turbines in the atmospheric turbulent boundary layer with many turbines often require simplifled models for the efiects of individual turbines, in order
A large-eddy simulation of wind-plant aerodynamics
In this work, we present results of a large-eddy simulation of the 48 multi-megawatt turbines composing the Lillgrund wind plant. Turbulent inflow wind is created by performing an atmospheric
Large-Eddy Simulation of Wind-Turbine Wakes: Evaluation of Turbine Parametrisations
Large-eddy simulation (LES), coupled with a wind-turbine model, is used to investigate the characteristics of a wind-turbine wake in a neutral turbulent boundary-layer flow. The tuning-free
A numerical study of the effects of atmospheric and wake turbulence on wind turbine dynamics
Although the atmospheric sciences community has been studying the effects of atmospheric stability and surface roughness on the planetary boundary layer for some time, their effects on wind turbine
Simulation of Turbulent Flow Inside and Above Wind Farms: Model Validation and Layout Effects
A recently-developed large-eddy simulation framework is validated and used to investigate turbulent flow within and above wind farms under neutral conditions. Two different layouts are considered,
Wind Turbine Wake in Atmospheric Turbulence
This thesis describes the different steps needed to design a steady-state computational fluid dynamics (CFD) wind farm wake model. The ultimate goal of the project was to design a tool that could
...
...