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中文摘要：
为减小高层建筑的风致阻力，本文采用数值模拟方法研究了全高吸气控制下高层建筑的风荷载减阻性能，分析了吸气孔位置、吸气角、开孔宽度和吸气流量系数等参数对风荷载减阻和分离控制的影响规律．结果表明：吸气流量系数越大，减阻效果越好，本文吸气角为15°、吸气流量系数为-0．0686时模型的阻力折减系数CDR达到0．523；而吸气角和开孔大小对CDR的影响较小．因此影响吸气控制减阻效果的直接因素是吸气流量系数，即减阻性能取决于吸气对边界层中低速流体的无量纲卷吸流量．讨论了吸气所消耗的功率及其产生的反作用力，并提出了实现“零阻力系数”和“零基底弯矩”的可能性．最后给出了全高吸气模型的风压折减系数关于吸气流量系数的经验公式，为高层建筑吸气控制的实际应用提供参考．
英文摘要：
In order to reduce the wind-induced drag of a high-rise building, the all-height to investigate its performance of the wind-load reduction suction through numerical simulation. Effects of the slot position, suction angle, slot size and flux coefficient on the drag reduction （DR） and the separation control were analyzed. The results showed that the DR was more significant under larger flux coefficient, and coefficient of the drag reduction （CDR） for the high-rise building model under flux coefficient of -0. 0686 and suction angle of 15° arrived at 0.523, however, the suction angle and slot size showed little influence on the DR. It was concluded that the direct factor to affect the CDR was the flux coefficient, namely the dimensionless suction flux of low-velocity flows from the boundary layer. The power required and the reaction forces caused by suction were discussed, and it seemed to have the possibility of producing the ＂zero drag coefficient＂ and ＂ zero base moment＂ building. Lastly, the formulae between the coefficient of pressure reduction and the flux coefficient were regressed for practical applications.
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