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    Blondeaux, Paolo 2001. MECHANICS OFCOASTALFORMS. Annual Review of Fluid Mechanics, Vol. 33, Issue. 1, p. 339.

    Mei, Chiang C. and Yu, Jie 1997. The instability of sand ripples under partially standing surface waves. Physics of Fluids, Vol. 9, Issue. 6, p. 1606.

  • Journal of Fluid Mechanics, Volume 314
  • May 1996, pp. 247-265

Mass transport under sea waves propagating over a rippled bed

  • G. Vittori (a1) and P. Blondeaux (a2)
  • DOI:
  • Published online: 01 April 2006

Mass transport under a progressive sea wave propagating over a rippled bed is investigated. Wave amplitudes a* of the same order of magnitude as that of the boundary layer thickness δ* and of the ripple wavelength l* are considered. All the above quantities are assumed to be much smaller than the wavelength L* of the sea wave and much larger than the amplitude 2ε* of the ripples. The analysis is carried out up to the second order in the wave slope a*/L* and in the parameter ε** which is a measure of ripple steepness. Because of these assumptions, the slow damping of wave amplitude in the direction of wave propagation is taken into account. Attention is focused on the bottom boundary layer where an order (ε**)2 correction of the steady velocity components described by Longuet-Higgins (1953) is found. This correction persists at the outer edge of the bottom boundary layer and affects the solution in the entire water column.

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Journal of Fluid Mechanics
  • ISSN: 0022-1120
  • EISSN: 1469-7645
  • URL: /core/journals/journal-of-fluid-mechanics
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