FLOW COMPUTATION FOR THREE-DIMENSIONAL WING IN GROUND EFFECT USING MULTI-BLOCK TECHNIQUE

A WIG (Wing in Ground effect) vehicle is characterized by a high lift to drag ratio and a backward shift of aerodynamic centre in close proximity to the ground, hence estimating its features accurately is very important in design and safety evaluation. In this investigation, flows around a three-dimensional wing with end-plates in ground effect are computed by a Navier-Stokes solver. Because of the geometric complexity of the configuration, a multi-block technique is used. In order to clarify the aerodynamic interaction between the wing and the ground, two boundary conditions on the ground are considered, 1) velocity is equal to the uniform flow and 2) no slip condition. They correspond to an actual operating condition and a wind-tunnel condition with a ground plate respectively. The flows with different ground heights are computed by the solver. Results are compared with experimental data and the aerodynamic characteristics in ground effect are discussed.

  • Supplemental Notes:
    • J Soc Naval Arch Japan, v 177, June 1995, p 49 [9 p, 11 ref, 2 tab, 15 fig]
  • Authors:
    • Hirata, N
    • Kodama, Y
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00717743
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM