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板翼动力锚水中自由下落过程数值模拟

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Indexed by:期刊论文

Date of Publication:2017-05-30

Journal:海洋工程

Included Journals:CSCD

Volume:35

Issue:3

Page Number:29-36

ISSN No.:1005-9865

Key Words:板翼动力锚;计算流体动力学;阻力系数;锚固基础;自由下落

Abstract:板翼动力锚是依靠自重完成安装并靠自重和海床土的抗力来锚固的新型动力锚.板翼动力锚在水中自由下落的阻力决定了锚到达海床表面时的速度,进而直接决定了锚贯入海床中的深度以及它能提供的承载力.板翼动力锚的形状比较复杂,采用计算流体动力学的方法研究板翼动力锚的下落速度、水平位移和转角与下落位移的关系.计算结果表明:板翼动力锚的拖曳阻力系数约为0.93~ 1.12之间;在沉贯过程中应使加载臂与翼板共面以减少阻力;板翼动力锚的终端速度约为28 m/s.

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