Research of land layouts around the square in winter cities based on microclimate optimization

To study the effects that land layouts around the square lay on the city square microclimate in winter cities, this paper takes St Alekseev Church as a model and uses the method of numerical simulation CFD to study 8 different land layouts in winter climate conditions. It takes wind velocity and relative temperature field into consideration mainly in the simulation when analyzing the square microclimate. The results of numerical experiment are used to compare different land layouts' effects on city square microclimate. The analysis results show building sites on windward side of the square can reduce wind velocity effectively; we should try best to avoid negative wind effect in the planning process; the city square microclimate design should be connected with relative planning demands, and mesures should be taken to optimize the layout when the two aspects are not unified.