Journal
BOUNDARY-LAYER METEOROLOGY
Volume 128, Issue 2, Pages 229-254Publisher
SPRINGER
DOI: 10.1007/s10546-008-9284-z
Keywords
complex terrain; mixed spectral-integration; wind-flow model
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A linear model for neutral surface-layer flow over orography is presented. The Reynolds-Averaged Navier-Stokes and E - epsilon 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.
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