Abstract: At present, the research on wind-driven rain (WDR) mainly focuses on rectangular buildings, and there is still a lack of research on WDR for commonly shaped buildings. Therefore, revealing the WDR distribution pattern of this type of building has become an essential work in the field of WDR. In this paper, the WDR numerical simulation method based on the Eulerian multiphase (EM) model is used to simulate and analyze the WDR distribution characteristics of three types of shaped buildings under different wind speeds and rainfall intensities, and the differences between the WDRs of the three types of shaped buildings and those of the typical rectangular buildings. The results show that, unlike the case of a continuous distribution of the WDR on the facade of a rectangular building, the facade WDR distribution of shaped buildings is more complicated due to the interference of their particular shapes. As the protruding portion of the windward facade effectively reduces the intrusion of WDR into the neighborhood, the catch ratio in the corner area tends to be 0. Compared to the rainfall intensity, the wind speed has a more significant effect on the catch ratio of the shaped building facade, and the maximum value of the catch ratio is increased by 0.8 when the rainfall intensity is kept constant and the wind speed is increased from 2 m/s to 10 m/s.
Keywords: wind-driven rain(WDR); shaped building; Eulerian multiphase(EM); catch ratio
合肥工业大学学报自科版