Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Numerical simulation of wind flow over a highly complex topography: the Bolund Hill case
Submission Author:
William C. Radünz , SP , Brazil
Co-Authors:
Adriane Prisco Petry, William C. Radünz
Presenter: William C. Radünz
doi://10.26678/ABCM.COBEM2017.COB17-0480
Abstract
The feasibility or modern wind power plants is directly related to the accuracy with which the wind resource is quantified at the proposed site. Numerical wind flow modeling with Computational Fluid Dynamics (CFD) has become the rule for resource assessment in complex sites, and high-quality atmospheric-scale experiments enable the development of increasingly accurate models. The Bolund hill experiment consists of one of the most valuable sources of data in complex terrain. In this paper, the the Atmospheric Surface Layer wind flow over Bolund hill was simulated with a consistent combination of turbulence model, wall-functions and inflow conditions by using the C++ toolbox OpenFOAM. A number of grids and k-epsilon model constants were used so as to evaluate the sensitivity to the inputs and determine the most sensible choice of parameters. The modified models displayed better agreement with the data, although they substantially failed to predict the TKE levels immediately after the leading edge of the hill and further model development is necessary.
Keywords
Bolund Hill, OpenFOAM, Wind flow modeling
