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A Mixed Spectral-Integration Model for Neutral Mean Wind Flow Over Hills |
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| Authors: | Jean-François Corbett Søren Ott Lars Landberg |
| Institution: | 1. Garrad Hassan Denmark ApS, Larsbj?rnsstr?de 3, 1454, Copenhagen, Denmark 2. Wind Energy Department, Ris? National Laboratory, Technical University of Denmark (DTU), Roskilde, Denmark 3. Garrad Hassan and Partners, Bristol, UK |
| Abstract: | A linear model for neutral surface-layer flow over orography is presented. The Reynolds-Averaged Navier-Stokes and E– turbulence closure equations are expressed in a terrain-following coordinate system created from a simple analytical expression
in the Fourier domain. The perturbation equations are solved spectrally horizontally and by numerical integration vertically.
Non-dimensional solutions are stored in look-up tables for quick re-use. Model results are compared to measurements, as well
as other authors’ flow models in three test cases. The model is implemented and tested in two-dimensional space; the equations
for a full three-dimensional version are presented. |
| Keywords: | Complex terrain Mixed spectral-integration Wind-flow model |
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