Print Email Facebook Twitter Effect of Wave-Current Interaction on the Wave Parameter Title Effect of Wave-Current Interaction on the Wave Parameter Author Li, Y.C. Herbich, J.B. Corporate name TU Delft Project Ocean Engineering Program Date 1982-02-01 Abstract The interaction of a gravity wave with a steady uniform current is discussed in this paper. Analysis indicates there is no dominant difference in the results obtained when employing either the equation of conservation of wave energy flux or the equation of conservation of wave action flux. Numerical calculations of the wave length change by different non-linear wave theories show that errors in the results computed by the linear wave theory are less than 10 percent within the range of 0.15 <= d/Ls <= 0.40, 0.01 <= Hs/Ls <= 0.07 and -0.15 <= U/Cs <= 0.30, where d = water depth, Hs = wave height in still water, Ls = wave length in still water, Cs = wave celerity in still water, and U = surface current velocity. Numerical calculations of wave height change employing different wave theories show that errors in the results obtained by the linear wave theory in comparison with the non-linear theories are greater when the opposing relative current and wave steepness become larger. However, within range of the following currents such errors will not be significant. These results were verified by model tests. Nomograms for the modification of wave length and height by the linear wave theory and Stokes' third order theory are presented for a wide range of d/Ls, Hs/Ls and U/Cs. These nomograms provide the design engineer with a practical guide for estimating wave lengths and heights affected by currents. Subject wave-current interactionnon-linear wave theorynumerical calculationsnomogramslinear wave theory Classification TLJ6000TLJ100200 To reference this document use: http://resolver.tudelft.nl/uuid:3e7728ad-b2ac-480f-94f5-7f657fe90ce3 Publisher Texas Engineering Experiment Station Source COE Report no. 257 Part of collection Hydraulic Engineering Reports Document type report Rights (c) 1982 Texas Engineering Experiment Station Files PDF Li_Herbich1982.pdf 8.68 MB Close viewer /islandora/object/uuid:3e7728ad-b2ac-480f-94f5-7f657fe90ce3/datastream/OBJ/view