期刊
JOURNAL OF MARINE SCIENCE AND ENGINEERING
卷 10, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/jmse10091211
关键词
hydrodynamics; CFD; numerical simulations; volume of fluid; URANS simulations; Morison equation; Keulegan-Carpenter number; two-phase flow; wake field
资金
- Open Access Publication Fund of the University of Duisburg-Essen
This paper predicts the hydrodynamic loads on slender vertical cylinders caused by a focused wave and analyzes the influence of wake effects on wave-induced loads using an URANS solver and the Morison equation.
Comparative hydrodynamic loads caused by a focused wave acting on differently sized slender vertical cylinders placed in a wave canal were predicted at model scale using an unsteady Reynolds-averaged Navier-Stokes (URANS) solver and the Morison equation. This paper focused, first, on wake effects that need to be considered for the structural design of tripod configurations and, second, on the influence of these wake effects on wave-induced loads. For the Morison approach, flow velocities were gathered at incremental representative locations along the length of the cylinders, whereby the use of a central differencing approach obtained the associated flow accelerations. A first scenario dealt with a small- and a large-diameter cylinder, implemented individually at two immersion depths. A second scenario considered medium- and large-diameter cylinders arranged in a tripod configuration, where the upstream and downstream cylinders had the same diameter. For the single cylinder, impact loads obtained by both methods compared favorably to experimental measurements. For the tripod configuration, however, impact loads obtained by both methods differed due to the influence of wake effects. Thus, it was necessary to determine the influence of wake effects to assess the structural integrity of tripod configurations.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据