@article{TURBULENT CURRENTS IN THE PRESENCE OF WAVES_1970, volume={1}, url={https://icce-ojs-tamu.tdl.org/icce/article/view/2776}, DOI={10.9753/icce.v12.141}, abstractNote={This paper presents an approximate theory for the reduction of the velocity of a current due to the presence of sinusoidal waves. For a given slope, S, in water of constant depth, d, the current velocity profile is U(z) = U^ (2.5'ln - - A) (1) t zo as a function of the height, z, above the bed. Eq. 1 is valid only above the thin wave boundary layer near the bed, the roughness of which is k = 30 z . Uf is the current friction velocity defined by p Ul = y d S = T (2) f ' cw CW Values of A can be found from: Fig. 2 where Aj applies when the direction of wave propagation is parallel to the current direction, and Fig. 3 where A2 applies when the direction of wave propagation is perpendicular to the current direction, cf. Notation in Sec. 2. The theory is based upon a number of assumptions (see Sec. 4).}, number={12}, journal={Coastal Engineering Proceedings}, year={1970}, month={Jan.}, pages={141} }