考虑自由表面的组合拖曳体阻力计算与设计优化

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李雪剑,刘志军,刘戈,林焰.考虑自由表面的组合拖曳体阻力计算与设计优化[J].,2017,57(4):376-382

考虑自由表面的组合拖曳体阻力计算与设计优化

Resistance calculation and optimization design for composite towed vehicle considering free surface

DOI：10.7511/dllgxb201704007

中文关键词:组合拖曳体阻力优化外形设计模型试验数值仿真

英文关键词:composite towed vehicle resistance optimization configuration design model experiment numerical simulation

基金项目:工业和信息化部高技术船舶科研计划资助项目(工信部联装\498号)；广东省科技计划项目(2015B0909040102016B090918092)；海洋可再生能源专项资金资助项目(QDME2013ZB01).

作者	单位
李雪剑,刘志军,刘戈,林焰

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中文摘要:

拖曳体作为一种水下设备，主要用于水下探测、海底地形勘探．其可以按照具体的需求进行设计，故拥有较强的实用性．组合拖曳体具有多个单体，结构复杂，相互干扰之下使得兴波阻力难以计算．因此以一种拥有水上部分的大型组合拖曳体的设计为背景，借助模型拖曳阻力试验，基于CFD理论，使用Star CCM商业软件，配合笛卡尔网格的离散形式，对水面拖曳体的阻力进行计算．通过与试验阻力值的对比，验证了数值算法的准确性．同时，基于计算结果及设计约束条件，对拖曳体结构外形进行优化，并使用数值方法进行了计算，计算结果表明优化后的拖曳体总阻力值有25%的下降．

英文摘要:

The towed vehicle is a kind of marine equipment, which is mostly used for underwater detection and mapping of submarine topography. It is very practical due to its flexible design according to detailed requirements. Because the structure of towed vehicle is complex, which has multiple units, it is difficult to estimate the wave resistance, especially considering the inner mutual interference of these units. So the model towing experiment is carried out based on the design of large scale composite towed vehicle, and according to the theory of computational fluid dynamics (CFD), the Star CCM commercial code combined with the discrete form of the Cartesian grid, the resistance of towed body above water surface is calculated. By comparing with experiment data, the accuracy of the numerical algorithm has been proved. Also, based on the calculation results along with design constraints, the towed body shape has been optimized. By the numerical algorithm, it turns out that the total resistance decreases by 25%.

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考虑自由表面的组合拖曳体阻力计算与设计优化

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