Three-dimensional wind field construction, wind turbine citing and wind comfort analysis in an urban environment
thesisposted on 2020-12-16, 18:15 authored by Mingrui LiuMingrui Liu
Three-dimensional urban wind field construction plays an important role not only in the analysis of pedestrian levels of comfort but also in the effectiveness of harnessing wind energy in an urban environment. However, it is challenging to accurately simulate urban wind flow due to the complex land use in urban environments. In this study, a three-dimensional numerical model was developed for urban wind flow construction. To obtain an accurate urban wind field, various turbulence models, including the Reynolds Stress Model (RSM), Shear-Stress Transport (SST) k-ω, realizable k-ε, and Re-Normalization Group (RNG) k-ε models were tested. Simulation results were compared with experimental data in the literature. The RSM model showed promising potential in simulating urban wind flow. The model was then adopted to simulate urban wind flow for Purdue University Northwest, which is located in the Northwest Indiana urban region. Based on the simulation results, the optimal location was identified for urban wind turbine siting and the wind comfort was analyzed in the walk sides between the buildings.