Open AccessASPECTS OF WAVE CURRENT BOUNDARY LAYER FLOWS
Author(s) -
Felicity C. Coffey,
Peter Nielsen
Publication year - 1984
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v19.150
Subject(s) - boundary layer , mechanics , current (fluid) , field (mathematics) , viscosity , flow (mathematics) , eddy current , vector field , turbulence modeling , geology , physics , materials science , mathematics , thermodynamics , turbulence , quantum mechanics , pure mathematics
Field measurements of steady current profiles under the influence of waves are described, including a technique for obtaining an extra independant estimate of the friction velocity. Field and laboratory measurements are analysed for the effect on apparent bed roughness by superimposing waves on a current. Finally the applicability of the eddy viscosity concept to combined flows is examined. The conclusion is that in general, different eddy viscosities must be applied to different flow components.