Oscillatory Rough Turbulent Boundary Layers

by Iver Brevik, Lect.; Division of Port and Ocean Engineering, University of Trondheim, Trondheim, Norway,

Serial Information: Journal of the Waterway, Port, Coastal and Ocean Division, 1981, Vol. 107, Issue 3, Pg. 175-188

Document Type: Journal Paper


Kajiura's three-layer model (1968) of an oscillatory rough turbulent layer is simplified to a two-layer model. This model consists of an overlap layer in which the turbulent viscosity varies linearly with height, and an outer layer in which the viscosity is constant. The analytic expressions are compared with Jonsson's Test No. 1 (1963, 1976, 1980). Reasonable agreement between theory and experiment is found, thus supporting the usefulness of the two-layer model.

Subject Headings: Oscillations | Boundary layers | Viscosity | Linear functions | Agreements and treaties

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