Flow control of circular cylinder based on active suction and blow

CHEN Wenli; GUO Yanjiao

doi:10.7638/kqdlxxb-2020.0005

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Flow control of circular cylinder based on active suction and blow

更新时间：2026-05-28

- Flow control of circular cylinder based on active suction and blow
- Vol. 38, Issue 5, Pages: 989-995(2020)
- 作者机构：
  
  哈尔滨工业大学土木工程智能防灾减灾工业与信息化部重点实验室,哈尔滨,150090
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2020.0005
  CLC： V211.3
- Published：2020
- 稿件说明：
移动端阅览
陈文礼, 郭艳娇. 基于主动吸吹气的圆柱绕流控制[J]. 空气动力学学报, 2020, 38(5): 989-995.

CHEN Wenli, GUO Yanjiao. Flow control of circular cylinder based on active suction and blow[J]. 2020, 38(5): 989-995.
陈文礼, 郭艳娇. 基于主动吸吹气的圆柱绕流控制[J]. 空气动力学学报, 2020, 38(5): 989-995. DOI： 10.7638/kqdlxxb-2020.0005.

CHEN Wenli, GUO Yanjiao. Flow control of circular cylinder based on active suction and blow[J]. 2020, 38(5): 989-995. DOI： 10.7638/kqdlxxb-2020.0005.

摘要

针对圆柱流动控制，分别设计了在圆柱前后驻点吹气、前驻点吸气后驻点吹气、前驻点吹气后驻点吸气、前后驻点吸气四种吸吹气方案。对

=300的二维圆柱绕流无控工况、有控工况进行大涡模拟，通过对其气动力参数、表面压力分布及尾流场特性等分析比较，发现圆柱前后驻点吹气、前驻点吸气后驻点吹气两种方案由于后驻点吹出气流起到阻隔尾流旋涡的作用，能够显著抑制升力脉动。当

s-b

=1时，升力脉动减小可达到92%以上。同时发现在圆柱前驻点吹气使圆柱前端趋于流线型，正压区压力显著减小，具有显著减阻效果。

Abstract

An active suction and blow method was used to the flow control of circular cylinders

including blowing at front and rear stagnation points

suctioning at front stagnation point and blowing at rear stagnation point

blowing at front stagnation point and suctioning at rear stagnation point

and suctioning at front and rear stagnation points. The control effects were simulated through Large-Eddy Simulation (LES) at a

of 300. The results of the aerodynamics and wake flow show that blowing at rear stagnation point could suppress the fluctuation of the lift force dramatically

due to the air blowing from the stagnation point reduces the influence of the wake vortexes. The reduction rate of the lift fluctuation reaches up to 92% when

s-b

=1. It is also found that the air blowing from front stagnation point makes the shape of the cylinder more streamlined

and the pressure in the front zone of the cylinder decreases significantly

which can lead to a significant drag reduction.

关键词

Keywords

references

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