本文用三维紊流正交数值模似，定量分析了各种因素对控制风速的影响，得到了最佳几何尺寸的计算公式和相应的ｖ＿ｘ计算图表。初步应用表明，达到同样的通风效果，若采用优化几何尺寸，系统风量平均可减少１３％，节电达３０％左右。 In this paper, the effect of various factors on the control of wind speed is quantitatively analyzed using the three-dimensional turbulent flow orthogonal numerical simulation, and the calculation formula of the optimal geometry and the corresponding v_x calculation chart are obtained. The preliminary application shows that the same ventilation effect can be achieved. If the optimized geometry is adopted, the air volume of the system can be reduced by an average of 13%, and the energy saving can reach about 30%.