IMECH-IR  > 非线性力学国家重点实验室
Lattice Boltzmann simulations of a pitch-up and pitch-down maneuver of a chord-wise flexible wing in a free stream flow
Qi, Dewei1; He, Guowei2; Liu, Yingming3; Qi, DW (reprint author), Western Michigan Univ, Dept Chem & Paper Engn, Kalamazoo, MI 49008 USA.
Source PublicationPHYSICS OF FLUIDS
2014-02-01
Volume26Issue:2Pages:21902
ISSN1070-6631
AbstractA rapid pitch-up and pitch-down maneuver of a chord-wise flexible wing in a steady free stream is studied by using a lattice Boltzmann flexible particle method in a three-dimensional space at a chord based Reynolds number of 100. The pitching rates, flexibility, and wing density are systematically varied, and their effects on aerodynamic forces are investigated. It is demonstrated that the flexibility can be utilized to significantly improve lift forces. The flexible wing has a larger angular momentum due to elasticity and inertia and generates a larger leading edge vortex as compared with a rigid wing. Such lift enhancement occurs mainly during the pitch-down motion while a large stall angle is produced during the pitch-up motion. At a low pitch rate, the flexibility cannot improve lift. (C) 2014 AIP Publishing LLC.; A rapid pitch-up and pitch-down maneuver of a chord-wise flexible wing in a steady free stream is studied by using a lattice Boltzmann flexible particle method in a three-dimensional space at a chord based Reynolds number of 100. The pitching rates, flexibility, and wing density are systematically varied, and their effects on aerodynamic forces are investigated. It is demonstrated that the flexibility can be utilized to significantly improve lift forces. The flexible wing has a larger angular momentum due to elasticity and inertia and generates a larger leading edge vortex as compared with a rigid wing. Such lift enhancement occurs mainly during the pitch-down motion while a large stall angle is produced during the pitch-up motion. At a low pitch rate, the flexibility cannot improve lift. (C) 2014 AIP Publishing LLC.
KeywordThree-point Velocity Correlation Turbulence Large Eddy Simulation Velocity Increment Multiscale Analysis
Subject AreaMechanics ; Physics
DOI10.1063/1.4866182
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000332322000004
WOS KeywordINSECT FLIGHT
WOS Research AreaMechanics ; Physics
WOS SubjectMechanics ; Physics, Fluids & Plasmas
Funding OrganizationNational Science Foundation (NSF)(1126438) ; Dr. Qi acknowledges the support from the National Science Foundation (NSF) under Award No. 1126438; Dr. He would like to thank the financial supports from the National Natural Science Foundation of China (NNSFC) under Award No. 11232011 (Key project) and the National Basic Research Program of China (973 Program) under Award No. 2013CB834100. ; National Natural Science Foundation of China (NNSFC)(11232011) ; National Basic Research Program of China (973 Program)(2013CB834100)
DepartmentLNM湍流
Classification一类/力学重要期刊
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48781
Collection非线性力学国家重点实验室
Corresponding AuthorQi, DW (reprint author), Western Michigan Univ, Dept Chem & Paper Engn, Kalamazoo, MI 49008 USA.
Affiliation1.Western Michigan Univ, Dept Chem & Paper Engn, Kalamazoo, MI 49008 USA
2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China
3.Sichuan Univ, Yangtze Ctr Math, Chengdu 610064, Peoples R China
Recommended Citation
GB/T 7714
Qi, Dewei,He, Guowei,Liu, Yingming,et al. Lattice Boltzmann simulations of a pitch-up and pitch-down maneuver of a chord-wise flexible wing in a free stream flow[J]. PHYSICS OF FLUIDS,2014,26(2):21902.
APA Qi, Dewei,He, Guowei,Liu, Yingming,&Qi, DW .(2014).Lattice Boltzmann simulations of a pitch-up and pitch-down maneuver of a chord-wise flexible wing in a free stream flow.PHYSICS OF FLUIDS,26(2),21902.
MLA Qi, Dewei,et al."Lattice Boltzmann simulations of a pitch-up and pitch-down maneuver of a chord-wise flexible wing in a free stream flow".PHYSICS OF FLUIDS 26.2(2014):21902.
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