The flow around L-and U-shaped models was studied numerically using the large-eddy simulation approach.Both mean and fluctuating wind were calculated and loaded in inlet boundary condition. Nine cases with different depth-width ratios（1:1

2:1 and 4:1）for L-and U-shaped models were considered. The results of pressure coefficient distribution were compared firstly with the experimental and numerical data provided by other researchers to verify the reliability of the method used in this paper.Velocity profiles and surface pressure distributions of different cases were then investigated and assessed separately. Results show that the wind field in weak regions are greatly influenced by bluff body

and then roof regions and windward regions.The influenced scopes of flow are defined and the maximum scopes away from bodies are 0.25 H in incoming zones

0.4 H in roof zones

0.5 H in both side zones and 2 H in weak zones.The larger the distance away from bluff body

the lower the influenced intensity of flow is. Stable distributions of mean pressure coefficients can be found on windward faces of bluff body.However

mean pressure coefficients on side

rear and roof faces are influenced greatly by vortex motion and show less regular characteristics relatively.Both mean and fluctuating pressure coefficients have similar variation tendency.The results of this paper will provide helpful references for structural wind-resistant design and also wind environment design.