Numerical simulation of underwater Ellipsoid motion near free surface

被引：0

作者：

Xu Dong ^{[1
,2
]}

Wang Yaxing ^{[2
]}

Li Ye ^{[2
]}

Zeng Li ^{[2
]}

机构：

[1] Harbin Engn Univ, Coll Comp Sci & Technol, Harbin, Peoples R China

[2] Harbin Engn Univ, State Key Lab Sci & Technol Autonomous Underwater, Harbin, Peoples R China

来源：

APPLIED MECHANICS AND MATERIALS I, PTS 1-3 | 2013年 / 275-277卷

关键词：

turbulent flow; free surface; underwater ellipsoid; drag coefficient;

D O I：

10.4028/www.scientific.net/AMM.275-277.502

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To analyze hydrodynamic characteristics of small scale body motion near free surface, finite volume method was adopt to compute incompressible Reynolds Averaged N-S (RANS) equations, numerical methods were conducted to simulate changes of drag coefficient and surface shape when moving near free surface. VOF method with Geo-Reconstruct form was used to deal with free surface. Fully developed turbulent flow can be solved by RNG k-epsilon model, and near wall region by near-wall functions. Quick upwind schemes were used to overcome instability problem when simulating high Reynolds flow. The results showed that VOF method, combined with RNG k-epsilon model, can be put to use to numerically simulate underwater body moving near free surface, and catch shape change of free surface in high Froude number.

引用

页码：502 / +

页数：2

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