| Autor: |
Chalmoukis, Iason A., Dimas, Athanassios A. |
| Zdroj: |
Proceedings of the International Offshore & Polar Engineering Conference; 2016, p1190-1197, 8p |
| Abstrakt: |
The objective of this study is to simulate the transition to turbulence of the oscillatory flow over three-dimensional (3-D) vortex ripples by means of an advanced Navier-Stokes solver and compare the behavior of the results with respect to the corresponding ones for twodimensional (2-D) ripples. Two cases of sinusoidal ripples were examined: a 2-D case of constant ripple length Lr, and a 3-D case of ripple length varying smoothly between Lr and 0.6Lr in the spanwise direction. The ripple height was the same for both cases. Results are presented for the behavior of the vorticity field and the bed shear stress. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
