A three-dimensional dynamic mode decomposition analysis of wind farm flow aerodynamics

Dai, X.; Xu, D.; Zhang, M.; Stevens, R.J.A.M.

doi:10.1016/j.renene.2022.03.160

Publication 97 · Wind-farm flow

A three-dimensional dynamic mode decomposition analysis of wind farm flow aerodynamics

X. Dai, D. Xu, M. Zhang, R.J.A.M. Stevens, Renewable Energy 191, 608-624 (2022).

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Main finding

Wind-farm layout changes organized flow structures, while the DMD reconstruction method determines which persistent structures are retained. The tested layout and reconstruction results do not establish a universal design rule or validated low-order controller.

Row power and cumulative power for four wind farm layouts — **How to read the figure.** Normalised power per turbine row (a) and cumulative farm power (b) for four layouts of a 108-turbine farm in a neutral boundary layer. The layouts separate downstream, which is the conditional result the paper supports. It does not establish a general design rule for the best arrangement, nor a validated low-order controller built on the mode decomposition. Open the full-resolution figure. Figure 7. X. Dai et al. (2022). No separate licence is stated here; consult the original publication and credited source before reuse.

Why this matters

Turbine arrangement changes organized farm-scale motion, while the chosen DMD reconstruction determines which persistent structures remain visible.

Research context

Builds on Characterizing the Coherent Structures Within and Above Large Wind… (read the finding), Flow Structure and Turbulence in Wind Farms (read the finding), Large eddy simulations of the effect of vertical staggering… (read the finding), and DMD/POD studies cited in the article. Connects to later reduced-order and turbine-model-fidelity papers but is not independent of the same LES lineage.

View in the complete publication list Related wind-farm research