Bed Friction in Combined Wave-Current Flows

Bedload sediment transport in coastal waters

“…(62a)) for rough turbulent flows, iii) for sheet flow conditions (h k0.8) the wave friction factor, f w,s , takes the form given by Wilson (1989), iv) the choice of friction factor is determined by the maximum of f w,r and f w,s , v) the friction factor is not enhanced by the presence of a near-normal incidence current, in accord with experimental observations of Simons et al (2001), vi) some simplifications are made to the expressions for mathematical convenience.…”

Wave boundary layer over a stone-covered bed

“…The data can be viewed as complementary to those presented earlier by Kamphuis (1975), Sleath (1984) and Simons et al (2000). The paper essentially presents the results of two experimental campaigns.…”

“…Fig. 14a also includes the data compiled by Soulsby et al (1993) and Jensen (1989) plus two more sets of data reported in Simons et al (2000). Of the data compiled by Soulsby et al (1993), Simon et al's (1988 is not included in Fig.…”

Turbulent kinetic energy balance of an oscillatory boundary layer in the transition to the fully turbulent regime

“…Therefore, a significant amount of the existing work in the field has focused on measuring the shear stress at the wall and on addressing the wall roughness effect [5][6][7]. Experimental works reporting detailed measurements of the flow are much scarce [2,[8][9][10].…”