Urban wind development is gathering energy and passion these years and is good for sustainable cities. This chapter tries to evaluate wind energy potential with study of urban form in a block scale (500 m × 500 m). CFD method is used for wind flow simulation. CFD parameter settings were validated and evaluated with wind tunnel experiment. Simple building forms (1–3 buildings) were tested for exploring the impact of building form on wind potential. Space over roof is proved to be most effective and practical position for developing wind energy in the urban environment. Ideal urban forms were tested for evaluating the impact of one single morphological parameter on wind potential over roof. Real urban forms were then evaluated and compared in order to reveal the impact of different urban form parameter on wind potential. Urban form unit models are then considered to understand the impact of a certain urban form feature on wind potential. Finally, a block model in Beijing is given for urban wind evaluation case study, including wind potential evaluation of every building roof in the model, wind turbine position evaluation, and economical cost analysis.
Part of the book: Modeling, Simulation and Optimization of Wind Farms and Hybrid Systems