Abstract
The time-dependent, attached, oscillatory, turbulent boundary-layer flow over a smooth circular cylinder is modelled. The problem is reduced to the solution of a number of analogous flat-plate problems, a technique that is applicable if the fluid particle amplitude is small compared with the diameter of the cylinder. Each flat-plate problem is treated using an algebraic, two-layer, mixing-length turbulence model, modified to simulate effects at transitional Reynolds numbers, these modifications being made with reference to existing results for flat plates obtained experimentally and by direct numerical simulation. The drag (damping) force in phase with the flow velocity is obtained from the surface shear stress and boundary-layer displacement thickness distributions. This force is of practical importance in offshore engineering at very high Reynolds numbers, where there is a lack of experimental, theoretical or numerical data. © 1995.
| Original language | English |
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| Pages (from-to) | 291-300 |
| Number of pages | 9 |
| Journal | Applied Ocean Research |
| Volume | 17 |
| Issue number | 5 |
| Publication status | Published - Oct 1995 |