淡江大學機構典藏:Item 987654321/114906
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 59108/92571 (64%)
Visitors : 735462      Online Users : 40
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/114906


    Title: Optimization Approach on Flapping Aerodynamic Characteristics of Corrugated Airfoil
    Authors: Sun, W.-H;Miao, J-.M;Tai, C.-H;Hung, C.-C.
    Keywords: MAVs;aerodynamic,;ANOVA analysis;vorticity
    Date: 2011/02/22
    Issue Date: 2018-09-13 12:11:11 (UTC+8)
    Abstract: The development of biomimetic micro-aerial-vehicles
    (MAVs) with flapping wings is the future trend in military/domestic
    field. The successful flight of MAVs is strongly related to the
    understanding of unsteady aerodynamic performance of low Reynolds
    number airfoils under dynamic flapping motion. This study explored
    the effects of flapping frequency, stroke amplitude, and the inclined
    angle of stroke plane on lift force and thrust force of a bio-inspiration
    corrugated airfoil with 33 full factorial design of experiment and
    ANOVA analysis. Unsteady vorticity flows over a corrugated thin
    airfoil executing flapping motion are computed with time-dependent
    two-dimensional laminar incompressible Reynolds-averaged
    Navier-Stokes equations with the conformal hybrid mesh. The tested
    freestream Reynolds number based on the chord length of airfoil as
    characteristic length is fixed of 103. The dynamic mesh technique is
    applied to model the flapping motion of a corrugated airfoil. Instant
    vorticity contours over a complete flapping cycle clearly reveals the
    flow mechanisms for lift force generation are dynamic stall, rotational
    circulation, and wake capture. The thrust force is produced as the
    leading edge vortex shedding from the trailing edge of airfoil to form a
    reverse von Karman vortex. Results also indicated that the inclined
    angle is the most significant factor on both the lift force and thrust
    force. There are strong interactions between tested factors which mean
    an optimization study on parameters should be conducted in further
    runs.
    Relation: MY74000
    Appears in Collections:[Graduate Institute & Department of Aerospace Engineering] Proceeding

    Files in This Item:

    File Description SizeFormat
    Optimization-Approach-on-Flapping-Aerodynamic-Characteristics-of-Corrugated-Airfoil.pdf805KbAdobe PDF41View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback