Laminar and turbulent solutions are presented for the Stokes- wave/flat-plate boundary-layer and wake for small-large wave steepness, including exact and approximate treatments of the free- surface boundary conditions. The macro-scale flow exhibits the wave-induced pressure-gradient effects described in precursory work. For laminar flow, the micro-scale flow indicates that the free-surface boundary conditions have a profound influence over the boundary layer and near and intermediate wake: the wave elevation and slopes correlate with the depthwise velocity; the streamwise and transverse velocities and vorticity display large variations, including islands of maximum/minimum values, whereas the depthwise velocity and pressure indicate small variations; significant free-surface vorticity flux and complex vorticity transport are displayed; wave- induced effects normalized by wave steepness are larger for small steepness with the exception of wave-induced separation; order-of- magnitude estimates are confirmed; and appreciable errors are introduced through approximations to the free-surface boundary conditions. For turbulent flow, the results are similar, but preliminary due to the present uncertainty in appropriate treatment of the turbulence free-surface boundary conditions and meniscus boundary layer.

  • Supplemental Notes:
    • 6th Intl Conf on Numerical Ship Hydrodynamics; 2-5 Aug 1993; Iowa, USA. Sponsored by US National Research Council et al. Procs. Publ by National Academy Press, USA, 1994. Session 5, p 215 [24 p, 15 ref, 1 tab, 18 fig]
  • Authors:
    • Choi, J E
    • Stern, F
  • Publication Date: 1994


  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00709088
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM