LARGE EDDY SIMULATION STUDY OF WIND FIELD AROUND TWO PARALLEL HILLS WITH DIFFERENT DISTANCES
Using a large eddy simulation method based on spatial averaging,this study analyzes the effects of differ-ent distances(0,0.5H,H,2H,and 3H)on the distribution characteristics of the flow-oriented wind field between two parallel hills,wind field disturbance factors,and the transient vortex structures around the hills.The results indicate that the distance significantly affects the flow-oriented wind field between the parallel hills,primarily within a cer-tain height range at the base of the hills'inner slopes and near the canyon walls.The wind speed disturbance factor near the symmetry plane is most pronounced when the distance D=0H.As the distance increases,the vortex ring scale on the lee side of the hills gradually decreases,and the elongated vortices between the two hills begin to dis-perse.These findings provide valuable reference for site selection in canyon terrain projects.
large eddy simulationside-by-side adjacent hillsinterference factorvortex structure
万方数据
维普
