SciELO - Scientific Electronic Library Online

vol.25 issue1Considerations for a sustainable hybrid mini-grid system: A case for Wanale village, UgandaSolar water heater contribution to energy savings in higher education institutions: Impact analysis author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • On index processSimilars in Google


Journal of Energy in Southern Africa

On-line version ISSN 2413-3051
Print version ISSN 1021-447X


ABDELSALAM, Ali M  and  VELRAJ, Ramalingam. Numerical simulation of atmospheric boundary layer and wakes of horizontal-axis wind turbines. J. energy South. Afr. [online]. 2014, vol.25, n.1, pp.44-50. ISSN 2413-3051.

Simulations of wind turbine wakes are presented in this paper using the three-dimensional Reynolds-Averaged Navier-Stokes (RANS) equations employing the k-ε turbulence model appropriately modified for the atmospheric flows. The actuator disk approach is used to model the action of the turbine rotor. Modified formulations of the inlet conditions and the wall functions are used to allow consistency between the fully developed atmospheric boundary layer (ABL) inlet profiles and the wall function formulation. Results are presented and compared with three wind turbines running under neutral atmospheric conditions. The results demonstrate that the accurate simulation of the atmospheric boundary layer applying enhanced inlet conditions and wall function formulation consistent with the k-ε model can give very useful information about the wakes, directly contributing to the accurate estimation of the power of the downstream turbines

Keywords : atmospheric boundary layer; wake; wind turbine; actuator disk.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License