ON TURBULENCE CLOSURE CONSTANTS FOR ATMOSPHERIC BOUNDARY-LAYER MODELLING: NEUTRAL STRATIFICATION |
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| Authors: | DAPENG XU PETER A TAYLOR |
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| Institution: | (1) Department of Earth and Atmospheric Science, York University, 4700 Keele Street, North York, Ontario, M3J 1P3, Canada |
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| Abstract: | Constant sets for several turbulence closure models,based on data for the atmospheric boundary layer, areproposed. They differ from those currently used inengineering situations but are self-consistent andtuned to represent atmospheric boundary-layerturbulence. The proposed constant sets are tested in a simple,one-dimensional, neutrally-stratified planetaryboundary-layer flow over a horizontally homogeneousand aerodynamically rough flat surface. Comparisons ofmodel results with similarity theory and large-eddysimulation show promise for improving boundary-layerpredictions. |
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| Keywords: | Turbulence closure Neutral stratification Similarity theory Large-eddy simulation |
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