0
Research Papers

Numerical Site Calibration Over Complex Terrain

[+] Author and Article Information
Philippe Brodeur

Canada Research Chair in Nordic Environment Aerodynamics of Wind Turbines, Ecole de Technologie Superieure, 1100 Notre-Dame Ouest, Montreal, QC, H3C 1K3, Canadabrodeurp@helimax.com

Christian Masson

Canada Research Chair in Nordic Environment Aerodynamics of Wind Turbines, Ecole de Technologie Superieure, 1100 Notre-Dame Ouest, Montreal, QC, H3C 1K3, CanadaChristian.Masson@etsmtl.ca

The vectorial map and associated DEMs were created by Geomat International, http:∕∕www.groupealta.com∕en∕cie.asp?cie=geomat.

Combined Type B standard uncertainty comes from both reference and secondary met mast measurements. Since these are identical for each tower, Table 2 presents the values only once. However, both reference and secondary met mast uncertainties are included in uB(Vi) using Eq. 1, as shown in the Appendix.

http:∕∕www.groupeohmega.com∕frameset.html.

J. Sol. Energy Eng 130(3), 031020 (Jul 18, 2008) (12 pages) doi:10.1115/1.2931502 History: Received February 07, 2007; Revised September 09, 2007; Published July 18, 2008

This paper presents the development and assessment of a numerical method for simulated site calibration. The wind flow over complex terrain is predicted with a small length scale resolution. The flow field is resolved with the Reynolds averaged Navier–Stokes equations, complemented by the kϵ turbulence model, with special treatment of the ground boundary to account for very large roughness lengths such as forest. The computational model is solved using FLUENT . A complex site, Riviere au Renard, located in Gaspesie, QC, Canada, has been selected and data have been collected from five met masts installed on this site. An experimental data analysis has been undertaken with emphasis on uncertainty evaluation. Three sets of results are presented. First, the numerical method is validated over flat terrain by comparing the simulation results with Monin–Obukhov similarity theory. Second, the assessment of the numerical method over complex terrain is done by comparing the wind velocity profiles at three of the met masts for three different wind orientations. Finally, traditional and numerical site calibrations for Riviere au Renard are presented for two wind directions. The numerical results are within the experimental data uncertainty.

FIGURES IN THIS ARTICLE
<>
Copyright © 2008 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Computational domain for the 5deg wind orientation and identified Met Masts 1, 2, and 3

Grahic Jump Location
Figure 2

x-component of the wind for inlet boundary condition, 2D calculation

Grahic Jump Location
Figure 3

x-component of the wind for side boundary condition, 2D calculation

Grahic Jump Location
Figure 4

Topography and installations at the site of Riviere au Renard (also shown is the domain used for the simulation of the 5deg wind orientation)

Grahic Jump Location
Figure 5

Zoom of the site of Riviere au Renard

Grahic Jump Location
Figure 6

Comparison of theoretical and simulated profiles for inlet flow

Grahic Jump Location
Figure 7

Comparison of theoretical and simulated profiles for the lateral boundary, flat terrain

Grahic Jump Location
Figure 8

Experimental data and simulation results for wind orientation 5deg

Grahic Jump Location
Figure 9

Experimental data and simulation results for wind orientation 15deg

Grahic Jump Location
Figure 10

Experimental data and simulation results for wind orientation 255deg

Grahic Jump Location
Figure 11

Numerical and traditional site calibrations, wind orientation 305deg

Grahic Jump Location
Figure 12

Numerical and traditional site calibrations, wind orientation 315deg

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In