Passive Wingtip Vortex Control by Using Tip-Mounted Half Delta Wings in Ground Effect

被引：2
|
作者：
Lu, Anan [1 ]
Lee, Tim [1 ]
机构：
[1] McGill Univ, Dept Mech Engn, Montreal, PQ H3A 2K6, Canada
来源：
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2020年 / 142卷 / 02期
关键词：
AERODYNAMIC CHARACTERISTICS; VORTICES;
D O I：
10.1115/1.4044669
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The ground effect on the wingtip vortex generated by a rectangular semiwing equipped with tip-mounted regular and reverse half delta wings was investigated experimentally. The passive tip vortex control always led to a reduced lift-induced drag as the ground was approached. In close ground proximity, the presence of the corotating ground vortex (GV) added vorticity to the tip vortex while the counter-rotating secondary vortex (SV) negated its vorticity level. The interaction of the GV and SV with the tip vortex and their impact on the lift-induced drag were discussed. Physical mechanisms responsible for the change in the vortex flow properties in ground effect were also provided.
引用
收藏
页数：11
相关论文
共 10 条
  • [1] Wingtip Vortex Control Via Tip-Mounted Half-Delta Wings of Different Geometric Configurations
    Lee, T.
    Choi, S.
    [J]. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2015, 137 (12):
  • [2] Aerodynamic performance of a wing with a deflected tip-mounted reverse half-delta wing
    T. Lee
    Y. Y. Su
    [J]. Experiments in Fluids, 2012, 53 : 1221 - 1232
  • [3] Aerodynamic performance of a wing with a deflected tip-mounted reverse half-delta wing
    Lee, T.
    Su, Y. Y.
    [J]. EXPERIMENTS IN FLUIDS, 2012, 53 (05) : 1221 - 1232
  • [4] Wingtip vortex control via the use of a reverse half-delta wing
    Lee, T.
    Su, Y. Y.
    [J]. EXPERIMENTS IN FLUIDS, 2012, 52 (06) : 1593 - 1609
  • [5] Wingtip vortex control via the use of a reverse half-delta wing
    T. Lee
    Y. Y. Su
    [J]. Experiments in Fluids, 2012, 52 : 1593 - 1609
  • [6] Passive Poststall Flow Control on Nonslender Delta Wings Using Flags
    Tan, Junchen
    Wang, Zhijin
    Gursul, Ismet
    [J]. AIAA JOURNAL, 2024, 62 (03) : 989 - 1005
  • [7] Passive control of unsteady-wing tip vortex via a slender half-delta wing in both reverse and regular configurations
    Lee, T.
    Pereira, J.
    [J]. EXPERIMENTS IN FLUIDS, 2013, 54 (07)
  • [8] Passive control of unsteady-wing tip vortex via a slender half-delta wing in both reverse and regular configurations
    T. Lee
    J. Pereira
    [J]. Experiments in Fluids, 2013, 54
  • [9] Experimental study of vortex flow control on double-delta wings using fillets
    Hebbar, SK
    Platzer, MF
    Alkhozam, AM
    [J]. JOURNAL OF AIRCRAFT, 1996, 33 (04): : 743 - 751
  • [10] Passive Flow Control on a Ground-Effect Diffuser Using an Inverted Wing
    Ehirim, Obinna
    Knowles, Kevin
    Saddington, Alistair
    Finnis, Mark
    [J]. SAE INTERNATIONAL JOURNAL OF PASSENGER CARS-MECHANICAL SYSTEMS, 2018, 11 (04): : 273 - 295
1