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基于实验的二维八边形液舱晃荡比尺效应研究

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Indexed by:期刊论文

Date of Publication:2019-05-15

Journal:船舶力学

Included Journals:EI、PKU

Volume:23

Issue:5

Page Number:505-511

ISSN No.:1007-7294

Key Words:二维八边形液舱;比尺效应;晃荡实验;横荡单次冲击

Abstract:文章针对二维八边形液舱晃荡冲击的比尺效应开展了实验研究.实验根据弗劳德相似准则分别选择1:1原型液舱与1:2和1:3两个比尺模型液舱,在横荡单次冲击外激激励的作用下,考虑80%危险载液率分别对流体冲击侧壁、上斜板和顶板时的晃荡荷载与冲击波形进行了比尺效应对比分析.分析结果表明,冲击过程中,如果原型液舱和缩比模型液舱中对应冲击壁面处于流体中,包裹的气泡越少,冲击压力峰值由模型还原到原型时更接近于原型实验实测值;若考虑整个冲击过程中的流场形态,应尽可能选择大比尺液舱来开展晃荡模型实验.

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