Numerical simulation of flow field characteristics about rotating slotted cylinder gust generator

XIANG Zhengping; DAI Yuting; HUANG Guangjing

doi:10.7638/kqdlxxb-2017.0175

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Numerical simulation of flow field characteristics about rotating slotted cylinder gust generator

更新时间：2026-05-28

- Numerical simulation of flow field characteristics about rotating slotted cylinder gust generator
- Vol. 37, Issue 6, Pages: 950-955(2019)
- 作者机构：
  
  1. 北京航空航天大学航空科学与工程学院,北京,100191
  2. 北京航空航天大学航空器先进设计技术工业和信息化部重点实验室,北京,100191
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2017.0175
  CLC： V211.3
- Published：2019
- 稿件说明：
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向正平, 戴玉婷, 黄广靖. 旋转开槽圆筒式阵风发生器流场特性数值模拟[J]. 空气动力学学报, 2019, 37(6): 950-955.

XIANG Zhengping, DAI Yuting, HUANG Guangjing. Numerical simulation of flow field characteristics about rotating slotted cylinder gust generator[J]. 2019, 37(6): 950-955.
向正平, 戴玉婷, 黄广靖. 旋转开槽圆筒式阵风发生器流场特性数值模拟[J]. 空气动力学学报, 2019, 37(6): 950-955. DOI： 10.7638/kqdlxxb-2017.0175.

XIANG Zhengping, DAI Yuting, HUANG Guangjing. Numerical simulation of flow field characteristics about rotating slotted cylinder gust generator[J]. 2019, 37(6): 950-955. DOI： 10.7638/kqdlxxb-2017.0175.

摘要

在OpenFOAM开源代码框架下开发求解器，对旋转开槽圆筒式阵风发生器的动态等效升力系数进行数值模拟，与试验结果吻合较好，验证了求解器的正确性。在此基础上，对该型阵风发生器的下游流场扰动风速进行了数值模拟和流场分析，分析了开槽圆筒旋转方向、下游流场位置、减缩频率等因素对下游流场扰动阵风的影响规律。结果表明，开槽圆筒的旋转方向对中心线上下两侧流场产生不同影响，对中心线附近的流场干扰较大。阵风幅值的变化与减缩频率有关，当减缩频率值在0.2~0.25之间时，产生阵风的正弦特性最佳。该数值模拟的结果对阵风发生器试验装置的设计具有一定的指导意义。

Abstract

A solver is developed under the OpenFOAM open source framework. The solver is validated by simulating the dynamic equivalent lift coefficient of the rotary slotted cylindrical gust generator

which is in good agreement with the experimental result. The numerical simulation and flow field analysis are carried out for the downstream flow field disturbance velocity. The effects of the rotation direction

the rotation frequency

and the flow velocity on the downstream flow field are analyzed. The results show that

the rotation direction of the cylinder has different effects on the flow field of the upper and lower sides of the center line with greater interference near the center line. The change of gust amplitude is related to the reduction frequency

and the sinusoidal characteristics of the gust are best when the reduced frequency is 0.2~0.25. The results of this numerical simulation have some guiding significance for the design of the test device.

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Keywords

references

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