中国舰船研究2016，Vol.11Issue(3)：32-36,5.DOI:10.3969/j.issn.1673-3185.2016.03.006
海洋污损对螺旋桨叶切面性能影响的数值模拟
Numerical simulation of the effects of biofouling on the hydrodynamic performance of propeller blade sections
摘要
Abstract
Generally, propeller surfaces are made from polished metal and have no antifouling provision, making them vulnerable to biofouling, yet the effects of such fouling on the performance of propellers are rarely studied. The present work simulates the flow field distribution around the fouled blade section by means of CFD. Barnacles are selected as the major subject from the fouling community and are directly modeled on a geometric level. The results show that the fouling causes earlier separation of the boundary layer and increases the separation region, which further leads to significant reduction of the lift-drag ratio (up to about 90% in maximum), and would thus result in remarkable decrease in the propulsive efficiency of propellers. However, when the height of barnacles exceeds a certain limit, their future growth yields limit⁃ed effects on the lift-drag ratio.关键词
海洋污损/叶切面/升阻力/SST k-ω湍流模型Key words
biofouling/blade sections/lift and drag/SST k-ωturbulence model分类
交通工程引用本文复制引用
张涛,彭飞,闵少松..海洋污损对螺旋桨叶切面性能影响的数值模拟[J].中国舰船研究,2016,11(3):32-36,5.基金项目
海军工程大学自然科学基金资助项目 （）
