Wake modeling with the actuator Disc concept

34Citations
Citations of this article
62Readers
Mendeley users who have this article in their library.

Abstract

The wakes induced by the wind turbines are modeled with the finite-volume code WindSim, based on the solving of the Reynolds Averaged Navier-Stokes (RANS) equations of an Atmospheric Boundary Layer. The RANS equations of an uncompressible flow are solved with a multigrid coupled solver (MIGAL); turbulence is closed with the RNG κ-ε model. The rotor of a wind turbine is modeled by an actuator disc providing a resistive force which is calculated from the thrust coefficient curve of wind turbine. The axial thrust can be distributed over the swept area in three different manners: by a uniform, parabolic or a polynomial distribution. A wake is therefore generated downstream of each turbine with wake deficit and induced turbulence. When using the actuator disc technique it is also interesting to observe how the wake-wake, wake-terrain interactions are predicted; moreover, also simulations with actuator discs and flows with thermal effects can be carried out. In this work we present first a series of simulations over a single turbine for a grid sensitivity study, in the second part a validation against production data from the offshore wind farm Horns Rev is presented. © 2012 Published by Elsevier Ltd.

Cite

CITATION STYLE

APA

Crasto, G., Gravdahl, A. R., Castellani, F., & Piccioni, E. (2012). Wake modeling with the actuator Disc concept. In Energy Procedia (Vol. 24, pp. 385–392). Elsevier BV. https://doi.org/10.1016/j.egypro.2012.06.122

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free