• Corpus ID: 51688402

Generalisation of the two-scale momentum theory for coupled wind turbine/farm optimisation

@article{Nishino2018GeneralisationOT,
  title={Generalisation of the two-scale momentum theory for coupled wind turbine/farm optimisation},
  author={Takafumi Nishino},
  journal={arXiv: Fluid Dynamics},
  year={2018}
}
  • T. Nishino
  • Published 5 June 2018
  • Physics
  • arXiv: Fluid Dynamics
An extended theoretical approach is proposed to predict the average power of wind turbines in a large finite-size wind farm. The approach is based on the two-scale momentum theory proposed recently for the modelling of ideal very large wind farms, but the theory is now generalised by introducing the effect of additional pressure difference induced by the farm between the upstream and downstream sides of the farm, making the approach applicable to real wind farms that are large but not as large… 

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References

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A new theoretical approach is proposed to predict a practical upper limit to the efficiency of a very large wind farm. The new theory suggests that the efficiency of ideal turbines in an ideal very…

Theoretically optimal turbine resistance in very large wind farms

In this paper we further investigate and validate the novel theoretical model of very large wind farms proposed recently by Nishino (J. Phys.: Conf. Ser. 753, 032054, 2016). One of the key features…

Tuning turbine rotor design for very large wind farms

A new theoretical method is presented for future multi-scale aerodynamic optimization of very large wind farms. The new method combines a recent two-scale coupled momentum analysis of ideal wind…

Preliminary estimate of the impact of support structures on the aerodynamic performance of very large wind farms

An extended theoretical model, which is based on a two-scale coupled momentum conservation argument, is proposed to estimate aerodynamic effects of support structures on the performance of ideal very…

Flow Adjustment Inside and Around Large Finite-Size Wind Farms

In this study, large-eddy simulations are performed to investigate the flow inside and around large finite-size wind farms in conventionally-neutral atmospheric boundary layers. Special emphasis is…

VALIDATION OF A THEORETICAL MODEL FOR LARGE TURBINE ARRAY PERFORMANCE UNDER REALISTIC ATMOSPHERIC CONDITIONS

Theoretical models capable of describing the performance of wind turbine arrays can be used to explore a wide range of parameters and to guide the design of more expensive and detailed numerical…

Figure 6: Variation of the row-averaged power coefficient from the first row to the last (25th) row of the farm with = 1.5: (a) higher bottom roughness case; (b) lower bottom roughness case