The irregular shape of buildings always tenders an enormous challenge to the designers. The wind velocity at the pedestrian level has a specific approach from a comfortable point of view. This investigation highlighted the characteristic of the pedestrian level wind velocity for distinct types of asymmetrical setback buildings. The passed study explored the pedestrian level effect for the axisymmetric models, while this study is based on the models that have symmetry about a single axis. This study investigates the pedestrian level flow fluctuation of setback models with single and double side setbacks at multiple levels. The double-side double setback buildings are efficient to reduce 28%–30% velocity in front of the building and 68%–70% velocity behind the building. Finally it suggests that the double side double setback building is efficient to maintain the velocity at the pedestrian level, roof level, and backside of the building. The setback building can easily control the frequency of fluctuating velocity at downstream flow for both along and across wind conditions.

建筑的不规则形状总是给设计师带来巨大的挑战。从舒适的角度来看，行人层面的风速具有特定的方法。这项调查强调了不同类型的不对称倒退建筑物的行人水平风速的特征。通过的研究探讨了轴对称模型的行人水平效应，而本研究基于关于单轴对称的模型。本研究调查了具有多层次单侧和双侧后退的后退模型的行人水平流波动。双面双退建筑物可有效降低建筑物前面的 28%–30% 的速度和建筑物后面的 68%–70% 的速度。最后，它表明双侧双后退建筑物可以有效地保持行人水平、屋顶水平和建筑物背面的速度。后退建筑物可以轻松控制顺风和横风条件下下游流动的速度波动频率。