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船体和螺旋桨相互干涉时的兴波阻力计算

DOI: 10.3969/j.issn.1006-7043.201111001

Keywords: 船体/螺旋桨, 干涉作用, Rankine源法, 迭代计算, 兴波阻力, 速度势

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Abstract:

为了更加准确地预报实船的阻力性能,在计算兴波阻力时考虑了船体和螺旋桨相互作用.对基本Rankine源法进行改进,船体周围的流场速度势可以表示成4部分:叠模绕流速度势、考虑自由面影响的波动速度势、螺旋桨对船体的干涉而产生的速度势和螺旋桨涡格子模型诱导速度势.以Hess-Smith法计算的叠模绕流解作为基本解,进行迭代计算,直至收敛.并编制了相应的数值计算程序,以26 000 t成品油船的模型为例进行分析比较,获得了令人满意的结果.

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