Figure 3
From: Utility-scale solar PV performance enhancements through system-level modifications

Effect of solar farm arrangement on flow: (Level 1, Triple layer) Higher inclination angles, larger velocity deficits, high turbulent mixing, little sub-panel flow (Level 2, Double layer) Low inclination angles, low interaction with overhead flow, low mixing (Level 3, Single layer) increased shear leading to increased sub-panel flow.