[1]谢凯,Laith K. Abbas,陈东阳,等.翼型非定常来流下复合运动动态失速仿真[J].哈尔滨工程大学学报,2019,40(05):865-871.[doi:10.11990/jheu.201711100]
 XIE Kai,LAITH K. Abbas,CHEN Dongyang,et al.Numerical simulations on dynamic stall of a complex motion of airfoil under unsteady freestream velocity[J].hebgcdxxb,2019,40(05):865-871.[doi:10.11990/jheu.201711100]
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翼型非定常来流下复合运动动态失速仿真(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
40
期数:
2019年05期
页码:
865-871
栏目:
出版日期:
2019-05-05

文章信息/Info

Title:
Numerical simulations on dynamic stall of a complex motion of airfoil under unsteady freestream velocity
作者:
谢凯 Laith K. Abbas 陈东阳 杨富锋 芮筱亭
南京理工大学 发射动力学研究所, 江苏 南京 210094
Author(s):
XIE Kai LAITH K. Abbas CHEN Dongyang YANG Fufeng RUI Xiaoting
Institute of Launch Dynamics, Nanjing University of Science and Technology, Nanjing 210094, China
关键词:
直升机旋翼翼型动态失速计算流体力学嵌套网格俯仰运动挥舞运动摆振运动
分类号:
V211.3
DOI:
10.11990/jheu.201711100
文献标志码:
A
摘要:
针对直升机前飞时的动态失速问题,本文采用转捩修正的SST k-ω湍流模型和嵌套网格技术对雷诺数Re为3.92×106时的直升机二维翼型SC1095进行数值仿真。以非定常来流条件下的纯俯仰运动为基础,对比分析了在耦合挥舞、摆振运动时,相位差、振幅对动态失速的影响;比较挥舞、摆振二者运动对于动态失速角的作用大小。结果表明:固定振幅条件下,挥舞和摆振运动相位差的增加会使动态失速角提前,升力系数峰值提高;固定相位角条件下,挥舞和摆振运动振幅的增加会使动态失速角延迟,升力系数峰值减小。挥舞运动对于非定常来流下俯仰运动翼型动态失速角的影响要大于摆振运动。本文计算方法和研究结果为翼型多自由度耦合运动下的动态失速行为预测提供参考。

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备注/Memo

备注/Memo:
收稿日期:2017-11-27。
基金项目:国防基础科研项目(B2620132013,A2620133008).
作者简介:谢凯,男,博士研究生;Laith K. Abbas,男,教授,博士生导师;芮筱亭,男,教授,博士生导师,中国科学院院士.
通讯作者:Laith K. Abbas,E-mail:laithabbass@yahoo.com
更新日期/Last Update: 2019-05-14